Jurnal Teknik Sipil https://journals.itb.ac.id/index.php/jts <div style="text-align: justify;"><a href="https://journals.itb.ac.id/index.php/jts" target="_blank" rel="noopener"><strong>Jurnal Teknik Sipil</strong> is a scientific journal published periodically every three months on <strong>April, August</strong> and <strong>December.</strong></a></div> <div> </div> <div style="text-align: justify;">Jurnal Teknik Sipil was published for the first time in 1990 with a mission as a pioneer in the scientific research publication of Civil Engineering in Indonesia.</div> <div> </div> <div style="text-align: justify;">As a national media, Jurnal Teknik Sipil is expected to accommodate the need for a media to disseminate information and latest publication for researchers and practitioners of Civil Engineering in Indonesia. In its development, Jurnal Teknik Sipil has been accredited based on the decision <a href="https://lppm.itb.ac.id/wp-content/uploads/sites/55/2021/12/Surat-pemberitahuan-hasil-akreditasi-elektronik-periode-I-tahun-2017.pdf">letter of Directorate General of Research and Development Strengthening, Ministry of Research, Technology and Higher Education of the Republic of Indonesia, no. : 32a/E/KPT/2017</a>, dated 26 April 2017 as a national scientific journal since 1996 and is currently has been re-accredited on April 2017.</div> <div> </div> <div style="text-align: justify;">With this achievement, Jurnal Teknik Sipil has been established as a media with high quality. Until now the Jurnal Teknik Sipil still an process to maintain its quality scientific publishing only the latest research results in the domain of Civil Engineering.</div> <div> </div> <div><strong><a href="https://get.google.com/albumarchive/107091118610478581121/album/AF1QipN2Jn_OA8Or2Y6sbVxIx4GnuI0V4nRlxqaTq1R0?authKey=CJLBweWC8JnEBA">SK Accreditation</a></strong></div> <div><a href="https://get.google.com/albumarchive/107091118610478581121/album/AF1QipN2Jn_OA8Or2Y6sbVxIx4GnuI0V4nRlxqaTq1R0/AF1QipMpjtWXq4hMFMZ7UdatlHqdRLBEF6BvnBz224o3?authKey=CJLBweWC8JnEBA"><img src="http://167.205.57.68/public/site/images/admin_jts/Sertifikat_JTS001.jpg_btl_.jpg" alt="" /></a><strong>ISSN</strong> 0853-2982 since 29/05/2007</div> <div><strong>E-ISSN</strong> 2549-2659 since 26/10/2016</div> <div> </div> <div><strong><span style="text-decoration: underline;">Publication History</span></strong></div> <div>Last edition journal : <a href="https://ftsl.itb.ac.id/jurnal-teknik-sipil/">https://ftsl.itb.ac.id/jurnal-teknik-sipil/</a></div> <div> </div> <div><strong>Indexing</strong> : <a href="https://scholar.google.co.id/citations?user=7y8sI58AAAAJ&amp;hl=id">Google Scholar</a> | <a href="https://doaj.org/toc/2549-2659?source=%7B%22query%22%3A%7B%22filtered%22%3A%7B%22filter%22%3A%7B%22bool%22%3A%7B%22must%22%3A%5B%7B%22term%22%3A%7B%22index.issn.exact%22%3A%222549-2659%22%7D%7D%2C%7B%22term%22%3A%7B%22_type%22%3A%22article%22%7D%7D%5D%7D%7D%2C%22query%22%3A%7B%22match_all%22%3A%7B%7D%7D%7D%7D%2C%22from%22%3A0%2C%22size%22%3A100%7D">Directory of Open Access Journals (DOAJ)</a> | <a href="https://garuda.kemdikbud.go.id/journal/view/9165">Indonesian Publication Index (IPI)/Portal Garuda</a> | <a href="https://www.doi.org/index.html">Digital Object Identifier (DOI)</a> | <a href="https://search.crossref.org/?q=jurnal+teknik+sipil">Crossref</a> |<a href="https://sinta.kemdikbud.go.id/journals/detail?id=945">Science and Technology Index (SINTA) </a>| Indonesian Scientific Journal Database (ISJD)</div> <div> </div> <div><strong><a href="https://statcounter.com/p11256474/summary/?guest=1" target="_blank" rel="noopener">View My Stats</a></strong></div> <div><a href="https://scholar.google.co.id/citations?user=7y8sI58AAAAJ&amp;hl=id"><strong><img src="http://167.205.57.68/public/site/images/admin_jts/google_scholar.jpg" alt="" /></strong></a> <a title="hit counter" href="https://statcounter.com/p11256474/summary/?guest=1" target="_blank" rel="noopener"><img src="http://c.statcounter.com/11256474/0/04439389/0/" alt="hit counter" /></a></div> <div> </div> <div><a href="https://creativecommons.org/licenses/by-nd/4.0/" rel="license"><img src="https://i.creativecommons.org/l/by-nd/4.0/88x31.png" alt="Lisensi Creative Commons" /></a></div> <div>This work is licensed under a <a href="https://creativecommons.org/licenses/by-nd/4.0/" target="_blank" rel="noopener">Creative Commons Attribution-NoDerivatives 4.0 International License</a></div> <div> </div> Institut Teknologi Bandung en-US Jurnal Teknik Sipil 0853-2982 Improvement Of Road Safety Conditions Based on IRAP Star Rating and Road Safety Inspection (Case Study Kopo – Soreang Provincial Road) https://journals.itb.ac.id/index.php/jts/article/view/21284 <p class="IsiAbstrak"><span lang="SV">The iRAP Star Rating Methodology and Road Safety Inspection (RSI) have similar objectives to improve road safey condition but with different approaches. As part of the Central Asia Regional Economic Cooperation (CAREC) program and with the support of the Asian Development Bank (ADB), a methodology for assessing road safety condition was developed by combining iRAP Star Rating Methodology and Road Safety Audit called Star Rating for Road Safety Audits (SR4RSA). This research is utilizing iRAP Star Rating to filter road segments that require more detailed analysis using RSI on the Kopo – Soreang road section, which is road segments with a Star Rating value less than 3. The results of the assessment using iRAP Star Rating show that there are still road segments with a Star Rating value below 3 for all road users, with a value of fatality estimated at 58 annually. Common safety concerns found in Kopo – Soreang road section based on the results of the Road Safety Inspection (RSI) are delineation, intersections, curvature, roadside severity objects, pavement surfaces defect, and vulnerable road users facilities. Using SR4RSA Methodology, a series of countermeasures from the iRAP Star Rating Methodology are adjusted to Road Safety Inspection Methodology resulting in 28 countermeasures that can be applied to Kopo – Soreang road section therefore, resulting in road segments with a minimum Star Rating of 3 for all road users and a reduction in fatality estimation value of 49,91%. After countermeasures have been implemented, the Star Rating value for vehicle occupants with a rating of 5 stars is higher compared to other road users Star Rating. This indicates that the implemented countermeasures are more focused on vehicle occupant’s safety. The result of this study shows that SR4RSA Methodology can be used to address the objectives of “RUNK LLAJ” in supporting the Global Plan Decade of Action for Road Safety 2021-2030.</span></p> Dhuha Ahdika Husnudzon Aine Kusumawati Widyarini Weningtyas Copyright (c) 2023 Jurnal Teknik Sipil 2023-12-21 2023-12-21 30 3 10.5614/jts.2023.30.3.1 Commuter Travelers Perception of Toll Roads During the Ramp Up Period in Indonesia https://journals.itb.ac.id/index.php/jts/article/view/22883 <p>Abstrak</p> <p><br />Kondisi permukaan jalan merupakan faktor yang memengaruhi kenyamanan dan keselamatan pengendara. <br />Sehingga perlu dilakukan pemeriksaan kondisi jalan secara berkala. Pemantauan kondisi permukaan jalan di <br />Indonesia pada umumnya masih masih dilakukan secara konvensional. Oleh karena itu, penelitian ini bertujuan untuk<br />menerapkan pendekatan yang lebih efisien dalam mengukur kondisi permukaan jalan dengan menggunakan sensor <br />accelerometer dan global positioning sistem (GPS) yang terinstall pada smartphone. Penelitian ini menggunakan <br />metode Dynamic Time Warping (DTW) untuk mengevaluasi kondisi permukaan jalan secara umum dan metode Kmeans clustering untuk mengidentifikasi lokasi anomali yang terdapat pada permukaan jalan. Data hasil perekaman<br />kondisi permukaan jalan USAID dari SMA Negeri 1 Lhoknga sampai Pantai Lhokseudu di Provinsi Aceh (lebih <br />kurang 16 kilometer) dianalisis pada penelitian ini. Hasil analisis menunjukkan bahwa bentuk topografi jalan menurun<br />dan menanjak cenderung memiliki kondisi yang lebih buruk dibandingkan segmen jalan yang mendatar. Selain itu, <br />hasil penelitian juga menunjukkan bahwa kawasan dengan kepadatan penduduk yang lebih rendah memiliki kondisi <br />jalan yang kurang baik dibandingkan kawasan dengan kepadatan penduduk yang lebih tinggi. Metode DTW dan Kmeans clustering berpotensi untuk digunakan sebagai metode alternatif dalam mengukur kondisi permukaan jalan <br />yang lebih hemat tenaga, waktu dan biaya jika dibandingkan dengan pemeriksaan secara konvensional.</p> <p><br />Abstract</p> <p><br />The condition of the road surface is a factor that affects the comfort and safety of the driver. It is necessary to <br />examine the condition of the road on a regular basis. Monitoring of road surface conditions in Indonesia is <br />generally still done conventionally. Therefore, this study aims to apply a more efficient approach in measuring road <br />surface conditions using accelerometer sensors and a global positioning system (GPS) installed on a smartphone. <br />This study employs the Dynamic Time Warping (DTW) method to evaluate general road surface conditions and the <br />K-means clustering method to identify the location of anomalies on the road surface. Recording data of USAID <br />road surface condition from SMA Negeri 1 Lhoknga to Lhok Seudu Beach in Aceh Province (approximately 16 <br />kilometers) were analyzed in this study. The results of the analysis show that the topography of downhill and uphill <br />roads tends to possess worse conditions than the horizontal road segments. In addition, the results also show that areas<br />with lower population densities have adverse road conditions than areas with higher population densities. The <br />DTW method and K-means clustering demonstrate the potential to be used as an alternative method in measuring <br />road surface conditions which is more efficient in energy, time and cost when compared to conventional inspection.<br /><br /></p> Weka Indra Dharmawan Ade Sjafruddin Russ Bona Frazila Febri Zukhruf Copyright (c) 2023 Jurnal Teknik Sipil 2023-12-21 2023-12-21 30 3 379 384 10.5614/jts.2023.30.3.2 An Overview of Technology Landscape in Construction Materials for the Indonesian Construction Industry https://journals.itb.ac.id/index.php/jts/article/view/22146 <p>Abstract.<br />The Indonesian construction sector plays a substantial role in the nation's economic growth. According to the <br />World Economic Forum, this industry currently contributes approximately 6% to the global GDP and is projected <br />to increase to 14.7% by 2030. Nevertheless, the construction sector predominantly relies on traditional craft-based <br />methods, resulting in suboptimal performance and quality due to limited technology utilization. Hence, the <br />Indonesian construction industry must increase investment in technology adoption, development, and application to <br />enhance national development support. Material technology plays an essential role in construction projects. A <br />survey of 40 Indonesian contractors revealed that the utilization priority for concrete and steel materials remains <br />high under normal conditions and during the covid-19 pandemic. This study aims to provide a comprehensive <br />overview of the historical development, utilization, contribution, and future strategy for concrete and steel <br />construction material technology in Indonesia. Contrastingly, this data is crucial for shaping construction <br />technology development and utilization policies in Indonesia. The study will systematically chart the technological <br />landscape in the country, employing literature reviews, interviews, and questionnaires as its methodology.<br /><br />Abstrak.</p> <p><br />Sektor konstruksi Indonesia memainkan peran penting dalam pertumbuhan ekonomi negara ini. Menurut World <br />Economic Forum, industri ini memberikan kontribusi sekitar 6% terhadap Produk Domestik Bruto (PDB) global <br />dan diperkirakan akan meningkat menjadi sekitar 14,7% pada tahun 2030. Namun, sektor konstruksi masih sangat <br />mengandalkan metode tradisional, yang mengakibatkan kinerja yang kurang optimal dan kualitas yang rendah <br />karena rendahnya penggunaan teknologi. Oleh karena itu, industri konstruksi Indonesia harus meningkatkan <br />investasi dalam adopsi, pengembangan, dan penerapan teknologi untuk meningkatkan dukungan pengembangan <br />nasional. Teknologi material memainkan peran penting dalam proyek konstruksi. Sebuah survei terhadap 40 <br />kontraktor Indonesia mengungkapkan bahwa prioritas pemanfaatan material beton dan baja tetap tinggi dalam kondisi normal dan selama pandemi covid-19. Studi ini bertujuan untuk memberikan gambaran menyeluruh <br />tentang perkembangan historis, pemanfaatan, kontribusi, dan strategi masa depan untuk teknologi material <br />konstruksi beton dan baja di Indonesia. Sebaliknya, data ini krusial dalam kebijakan pengembangan dan <br />pemanfaatan teknologi konstruksi di Indonesia. Studi ini akan secara sistematis menggambarkan lanskap teknologi <br />di negara ini, dengan menggunakan studi literatur, wawancara, dan kuesioner sebagai metodologi utamanya. </p> Rani G. K. Pradoto Biemo Woerjanto Soemardi Abdhy Gazali Hintama Nathaniel Sunarjo Andira Triana Putri Rika Permatasari Purba Ignatius Mahardika Copyright (c) 2023 Jurnal Teknik Sipil 2023-12-21 2023-12-21 30 3 10.5614/jts.2023.30.3.3 Feasibility Study of Sustainable Coastal Protection through the Integration of Bamboo Breakwater and Green Mussel Cultivation https://journals.itb.ac.id/index.php/jts/article/view/22344 <p>One pressing issue posing a significant threat to the coastal ecosystem is abrasion. Therefore, it is imperative to implement an effective and stable coastal protection structure using readily available and cost-effective materials combined with green mussel cultivation to bolster economic benefits for the community. The methodology employed in this study encompasses the integration and analysis of secondary data and the collection of archival information. The findings indicate that the ecological conditions of the waters in Bedono Village, Sayung District at Demak Regency meet the necessary criteria for green mussel cultivation. Bamboo with a minimum length of 7.5 meters and a planting depth of 2 meters is utilized. Financially, this approach proves to be quite advantageous, yielding a Net Present Value (NPV) of Rp1,202,383 for the stake method of green mussel cultivation. The Net Benefit-Cost Ratio (Net B/C) for the stake method of green mussel cultivation is 1.20. Based on the NPV and Net B/C feasibility criteria, the stake method of green mussel cultivation is considered viable. This structural concept is evaluated as adhering to ecological principles across all its components.</p> Izqi Yustina Ammylia Yusuf Ahmad Didin Khoiruddin Nita Yuanita Alamsyah Kurniawan Copyright (c) 2023 Jurnal Teknik Sipil 2023-12-21 2023-12-21 30 3 10.5614/jts.2023.30.3.4 Evaluasi Kinerja Struktur Jembatan Kabel Pancang Pasupati Bandung https://journals.itb.ac.id/index.php/jts/article/view/20972 <p>Abstrak</p> <p>Jembatan kabel pancang (cable stayed) Pasupati Bandung didesain berdasarkan peraturan perencanaan jembatan BMS-1992 dan beroperasi sejak tahun 2005. Mengikuti perkembangan data lalu lintas, data kegempaan dan perkembangan ilmu pengetahuan, peraturan perencanaan jembatan telah diperbarui beberapa kali sampai yang terbaru adalah SNI 1725:2016 tentang Pembebanan untuk Jembatan serta SNI 2833:2016 tentang Perencanaan Tahan Gempa untuk Jembatan. Peraturan terbaru menerapkan sejumlah peningkatan beban hidup rencana dan juga beban gempa rencana sehingga memerlukan kapasitas rencana lebih tinggi. Demi menjamin keselamatan dan fungsi jembatan, perlu dilakukan evaluasi menyeluruh untuk memastikan bahwa Jembatan Pasupati masih layak berdasarkan peraturan perencanaan dan pembebanan terbaru. Pada penelitian ini dilakukan analisis metode elemen hingga linier dan nonlinier sesuai dengan gambar as built jembatan mengikuti kriteria perencanaan dan pembebanan pada peraturan terbaru. Hasil analisis pembebanan vertikal menunjukkan kelebihan beban tidak begitu besar, sehingga masih dianggap memenuhi syarat. Hasil analisis linier memperhitungkan beban gempa dan beban vertikal menunjukkan kapasitas momen pada dasar pylon dan sambungan pylon dengan gelagar terlampaui. Untuk konfirmasi hasil analisis linier dengan kombinasi beban gempa yang melebihi kapasitas, dilakukan analisisi non-linier pushover. Hasil analisis pushover menunjukkan struktur jembatan berada pada level kinerja fully operational sesuai dengan yang disyaratkan. Hasil analisis menunjukkan tidak ada kerusakan struktural dan non-struktural yang berarti apabila terjadi beban gempa rencana dan struktur jembatan dianggap layak dan memenuhi peraturan-peraturan perencanaan terbaru.</p> <p>Abstract</p> <p>The Pasupati Cable Stayed Bridge in Bandung was designed based on the BMS-1992 bridge design code and has been in operation since 2005. Following the developments of traffic data, seismic data, and advancements in scientific knowledge, the bridge design codes have been updated several times, with the latest being SNI 1725:2016 on Loadings for Bridges and SNI 2833:2016 on Earthquake Resistant Design for Bridges. The latest regulations incorporate increased design live loads and earthquake loads, thus requiring a higher design capacity. To ensure the safety and functionality of the bridge, a comprehensive evaluation is necessary to confirm that the Pasupati Bridge still meets the latest design criteria and loading regulations. In this study, a finite element analysis using both linear and nonlinear methods was conducted based on the as-built bridge drawings, following the criteria set by the latest design codes. The results of the vertical loading analysis showed that the overload caused by increased load criteria was not significant and the bridge considerred safe. The linear analysis for combination of seismic and vertical loads showed that the moment capacity at the base of the pylons and pylon-to-girder connections was exceeded, revealing the possibility of plastic response. To further investigate the bridge's performance under design earthquake loads and assess its behavior beyond elastic limits, a nonlinear pushover analysis was conducted. This analysis demonstrated that the bridge structure achieved a fully operational performance level, as required. Importantly, the results indicated no significant structural damage when subjected to the design earthquake loads, thus confirming the bridge's compliance with the latest design code.</p> <p> </p> Made Suarjana Punto Budiharto Copyright (c) 2023 Jurnal Teknik Sipil 2023-12-21 2023-12-21 30 3 367 378 10.5614/jts.2023.30.3.5 Studi Karakteristik Kuat Tekan Beton Geopolimer Berbahan Dasar Fly Ash https://journals.itb.ac.id/index.php/jts/article/view/22372 <p><em>The use of concrete is generally used to make road pavement, building structures, foundations, roads, pedestrian bridges, parking structures, bases for fences/gates, and cement in brick or block walls, causing the demand for cement material to be increasingly high, building construction materials experts also conducted various research on concrete. One of the research carried out was on Geopolymer Concrete. Geopolymer concrete is a type of geosynthetic concrete that is made without using any portland cement as a binding agent, and as a substitute for portland cement, fly ash mixed with an alkali activator is used.Geopolymer concrete mix planning uses the weight comparison method for each concrete composition using a w/fa factor of 0.25. The test object is cylindrical in shape with an activator alkali ratio of Na2SiO3: NaOH (sodium silicate and sodium hydroxide) of 1/2, 2/2, 3/2, 4/2 and 5/2. Cylindrical specimens with a diameter of 10 cm and a height of 20 cm were tested for compressive strength at the age of 14 days and 28 days to see the development and comparison of each variation of the alkali activator mixture for the results of the concrete compressive strength values.The average compressive strength of Geopolymer concrete with an alkali activator composition ratio of 1/2 and 2/2 cannot be used as structural concrete because the concrete compressive strength test results are below 18 MPa and geopolymer concrete with an alkali activator composition ratio of 3/2 to 5/2 can be used as an alternative substitute for concrete. conventional because the results obtained have reached the minimum concrete compressive strength requirements for the structural concrete category, namely &gt; 18 MPa.</em></p> <p><strong>Keywords</strong>: Geopolymer Concrete, Alkali Activator, Fly Ash, Compressive Strength</p> Hanafi Ashad Muhammad Rezky Putra Toni Utina Copyright (c) 2023 Jurnal Teknik Sipil 2023-12-21 2023-12-21 30 3 379 384 10.5614/jts.2023.30.3.6 Evaluasi Shear Strength dan Stress History Tanah Lunak pada Pekerjaan Vacuum Preloading Menggunakan Uji CPTu https://journals.itb.ac.id/index.php/jts/article/view/20272 <p class="IsiAbstrak"><span lang="SV">Makalah berikut menyajikan evaluasi nilai shear strength dan stress history tanah lunak menggunakan CPTu. Lokasi penelitian berada di Kosambi Tangerang, pada tanah Jakarta marine clay. Pada area penelitian dilakukan pematangan lahan menggunakan prefabricated vertical drain (PVD) yang dikombinasikan dengan vacuum preloading sebesar 80 kPa. Dalam penelitian ini disebut metode konsolidasi vakum. Penelitian ini bertujuan untuk mengukur efektifitas pekerjaan konsolidasi metode vacuum preloading. Metode pengukuran efektivitas konsolidasi vakum menggunakan evaluasi nilai <em>shear strength</em> dan <em>stress history</em> dari CPTu. Hasil analisis dapat menunjukkan beban <em>vacuum preloading</em> yang diterima di setiap lapisan tanah. Besar derajat konsolidasi menggunakan analisis <em>settlement plate</em> tidak selalu mencerminkan besar peningkatan nilai kuat geser tanah. Nilai derajat konsolidasi tanah pada <em>vacuum preloading</em> lebih mendekati kondisi aktual jika menggunakan acuan peningkatan kuat geser tanah daripada hasil analisis settlement plate. Tanah Jakarta marine clay memiliki nilai α berkisar 2.5 dan nilai Ch mendekati nilai Cv.</span></p> <p class="IsiAbstrak"><span lang="SV"><em>The following paper shows an evaluation of the shear strength and stress history values of soft soils using CPTu. The research location is in Kosambi, Tangerang, on Jakarta marine clay soil. In the research area, ground preparation was carried out using a prefabricated vertical drain (PVD) combined with a vacuum preloading of 80 kPa. In this study it is called vacuum consolidation method</em><em>. </em><em>This study aims to measure the effectiveness of consolidation using vacuum consolidation method by using the evaluation of shear strength values and stress history of CPTu. The results of the analysis can show the vacuum preloading load received in each soil layer. The result of consolidation degree using analysis of settlement plate does not always indicate the increase of shear strength in the soil. The value of degree consolidation on the vacuum preloading is closer to the actual condition when using the increasing shear strength compared to the result analysis from the settlement plate. Jakarta marine clay soil has an α value of around 2.5 and the Ch value is close to the Cv value.</em></span></p> Fenny Septiastuti Paulus Pramono Rahardjo Rinda Karlinasari Indrayana Copyright (c) 2023 Jurnal Teknik Sipil 2023-12-21 2023-12-21 30 3 10.5614/jts.2023.30.3.7 Kinerja Mekanistik Campuran Beraspal dengan Mensubstitusi Agregat Kasar dengan Batu Vulkanik Merah https://journals.itb.ac.id/index.php/jts/article/view/21956 <p><em>Semakin terbatasnya ketersediaan batu vulkanik di alam menyebabkan bahan konstruksi perkerasan jalan menggunakan batu vulkanik hitam tercampur dengan batu vulkanik merah yang berat jenisnya lebih ringan dan berpori. Penelitian ini bertujuan menganalisis kinerja mekanistik campuran beraspal dengan mensubstitusi agregat kasar dengan batu vulkanik merah hingga prosentase 10% pada ukuran butiran ½”, 3/8”, No.4 sesuai dengan kondisi di lapangan. Pembuatan campuran beraspal dilakukan dengan metode marshall. Karakteristik mekanistik diperoleh dari pengujian modulus kekakuan tarik tidak langsung/Indirect Tensile Stiffness Modulus (ITSM) sesuai BS EN 12697-26: 2012, pengujian rangkak dinamis/dynamic creep (</em><em>BS EN 12697–25:2005) dan pengujian kelelahan tarik tidak langsung/Indirect Tensile </em><em>Fatique Test (IT</em><em>FT) sesuai </em><em>BS EN 12697–24:2012 menggunakan alat uji dynapave universal testing material (UTM) 30.</em><em> Nilai-nilai karakteristik marshall campuran beraspal </em><em>memenuhi spesifikasi Kementrian PUPR (2020), karakteristik kekakuan meningkat rata-rata 6,9% setiap penambahan substitusi 5% batu vulkanik merah. Ketahanan deformasi meningkat dengan nilai tipikal kemiringan rangkak menyimpulkan campuran beraspal dapat digunakan untuk beban lalu lintas berat (ESA &gt;10<sup>6</sup>). </em><em>Karakteristik ketahanan kelelahan lebih rendah (lebih awal runtuh) dibandingkan dengan tanpa substitusi batu vulkanik merah dan terjadi penurunan ketahanan kelelahan sebesar 2,18% setiap penambahan substitusi 5% batu vulkanik merah.</em></p> <p><em>Abstract <br />The increasingly limited availability of volcanic stone in nature has caused road pavement construction materials <br />to use black volcanic stone mixed with red volcanic stone, which is lighter in density and porous. This research <br />aims to analyze the mechanistic performance of asphalt mixtures by substituting coarse aggregate with red volcanic <br />stone up to a percentage of 10% at a granule size of ½", 3/8", No. 4 according to conditions in the field. The asphalt <br />mixture is made using the marshall method. Mechanistic characteristics are obtained from indirect tensile stiffness <br />modulus (ITSM) testing according to BS EN 12697-26: 2012, dynamic creep testing (BS EN 12697–25:2005) and <br />indirect tensile fatigue testing (ITFT) according to BS EN 12697–24:2012 using a dynapave universal testing <br />material (UTM) 30 test tool. The marshall characteristic values of the asphalt mixture meet the specifications of the <br />Ministry of PUPR (2020), the stiffness characteristic increases by an average of 6.9 % for each additional <br />substitution of 5% red volcanic stone. Deformation resistance increases with typical values of creep slope, <br />concluding that asphalt mixtures can be used for heavy traffic loads (ESA &gt;106<br />). The fatigue resistance <br />characteristics are lower (earlier to collapse) compared to without red volcanic stone substitution and there is a <br />decrease in fatigue resistance of 2.18% for each additional 5% red volcanic stone substitution. </em></p> <p> </p> Agus Ariawan D.M. Priyantha Wedagama I Nyoman Arya Thanaya I Gusti Agung Ratih Kusuma Wardani I Putu Chandra Wibawa Copyright (c) 2023 Jurnal Teknik Sipil 2023-12-21 2023-12-21 30 3 397 404 10.5614/jts.2023.30.3.8 Penerapan Metode Dynamic Time Warping dan Clustering Dalam Evaluasi Kondisi Permukaan Jalan (Contoh Jalan USAID Aceh) https://journals.itb.ac.id/index.php/jts/article/view/19558 <p>Abstrak<br />Kondisi permukaan jalan merupakan faktor yang memengaruhi kenyamanan dan keselamatan pengendara. <br />Sehingga perlu dilakukan pemeriksaan kondisi jalan secara berkala. Pemantauan kondisi permukaan jalan di <br />Indonesia pada umumnya masih masih dilakukan secara konvensional. Oleh karena itu, penelitian ini bertujuan untuk<br />menerapkan pendekatan yang lebih efisien dalam mengukur kondisi permukaan jalan dengan menggunakan sensor <br />accelerometer dan global positioning sistem (GPS) yang terinstall pada smartphone. Penelitian ini menggunakan <br />metode Dynamic Time Warping (DTW) untuk mengevaluasi kondisi permukaan jalan secara umum dan metode Kmeans clustering untuk mengidentifikasi lokasi anomali yang terdapat pada permukaan jalan. Data hasil perekaman<br />kondisi permukaan jalan USAID dari SMA Negeri 1 Lhoknga sampai Pantai Lhokseudu di Provinsi Aceh (lebih <br />kurang 16 kilometer) dianalisis pada penelitian ini. Hasil analisis menunjukkan bahwa bentuk topografi jalan menurun<br />dan menanjak cenderung memiliki kondisi yang lebih buruk dibandingkan segmen jalan yang mendatar. Selain itu, <br />hasil penelitian juga menunjukkan bahwa kawasan dengan kepadatan penduduk yang lebih rendah memiliki kondisi <br />jalan yang kurang baik dibandingkan kawasan dengan kepadatan penduduk yang lebih tinggi. Metode DTW dan Kmeans clustering berpotensi untuk digunakan sebagai metode alternatif dalam mengukur kondisi permukaan jalan <br />yang lebih hemat tenaga, waktu dan biaya jika dibandingkan dengan pemeriksaan secara konvensional.<br />Kata-kata Kunci: DTW, k-means clustering, permukaan jalan, smartphone<br />Abstract<br />The condition of the road surface is a factor that affects the comfort and safety of the driver. It is necessary to <br />examine the condition of the road on a regular basis. Monitoring of road surface conditions in Indonesia is <br />generally still done conventionally. Therefore, this study aims to apply a more efficient approach in measuring road <br />surface conditions using accelerometer sensors and a global positioning system (GPS) installed on a smartphone. <br />This study employs the Dynamic Time Warping (DTW) method to evaluate general road surface conditions and the <br />K-means clustering method to identify the location of anomalies on the road surface. Recording data of USAID <br />road surface condition from SMA Negeri 1 Lhoknga to Lhok Seudu Beach in Aceh Province (approximately 16 <br />kilometers) were analyzed in this study. The results of the analysis show that the topography of downhill and uphill <br />roads tends to possess worse conditions than the horizontal road segments. In addition, the results also show that areas<br />with lower population densities have adverse road conditions than areas with higher population densities. The <br />DTW method and K-means clustering demonstrate the potential to be used as an alternative method in measuring <br />road surface conditions which is more efficient in energy, time and cost when compared to conventional inspection.<br /></p> M Arief Zuhdi Nasution Samsul Anwar Radhiah Copyright (c) 2023 Jurnal Teknik Sipil 2023-12-21 2023-12-21 30 3 405 418 10.5614/jts.2023.30.3.9 Identifikasi Karakteristik Teknik Subgrade Jalan (Studi Kasus Jalan Raya Tanak Awu-Pengembur, Lombok Tengah) https://journals.itb.ac.id/index.php/jts/article/view/16582 <p><strong>Abstrak</strong></p> <p><strong> </strong></p> <p><em>Jalan yang menghubungkan Desa Tanak Awu menuju Desa Pengembur yang berada di Kecamatan Pujut, Lombok Tengah, sering rusak, retak-retak dan bergelombang. Tujuan penelitian ini adalah memaparkan hasil identifikasi karakteristik teknik subgrade Jalan Tanak Awu-Pengembur, meliputi karakteristik fisik, mineralogi, karakteristik hidromekanik dan karakteristik mekanik, berdasarkan hasil uji eksperimen di laboratorium </em><em>agar dapat menjadi masukan bagi institusi terkait. Hasil identifikasi mineralogi dan karakteristik fisik menyimpulkan bahwa subgrade Jalan Tanak Awu-Pengembur merupakan tanah ekspansif. Hasil identifikasi mekanik menyatakan Nilai California Bearing Ratio (CBR) rendaman desain tanah sampel sebesar 2 % telah memenuhi persyaratan minimum sebagai subgrade jalan, namun untuk subgrade tanah ekspansif, nilai CBR perlu ditingkatkan menjadi lebih besar dari 6 % dengan perbaikan tanah dasar dapat berupa stabilisasi semen atau material timbunan pilihan dengan tebal minimum 600 mm (MDP 2017). Hasil uji CBR dengan variasi kadar air kondisi jenuh dan jenuh sebagian, p</em><em>ada bagian awal kurva sampai pada nilai A</em><em>ir </em><em>E</em><em>ntry </em><em>V</em><em>alue (AEV) </em><em> peningkatan </em><em>nilai CBR</em><em> tanah terhadap matric</em> <em>suction </em><em>ber</em><em>bentuk linier</em><em>, s</em><em>elanjutnya pada</em><em> kenaikan </em><em> matric suction antara </em><em>600 kPa</em><em>-</em><em>24</em><em>00 kPa, terlihat </em><em>nilai CBR</em><em> tanah </em><em>mulai meningkat</em><em> signifikan, </em><em>peningkatan </em><em>matric suction yang </em><em>lebih </em><em>tinggi </em><em>(antara 2400 kPa-20000 kPa)</em><em>, peningkatan </em><em>nilai CBR</em><em> terhadap matric suction </em><em>lebih landai.</em></p> <p> </p> <p> </p> <p><strong>Abstract</strong></p> <p><strong> </strong></p> <p><em>The purpose of this research is to describe the results of the identification of the technical characteristics of the Tanak Awu-Pengembur Road subgrade, including physical characteristics, mineralogy, hydromechanical characteristics, and mechanical characteristics, based on the results of experimental tests in the laboratory so that they can be input for related institutions.</em> <em>The results of mineralogy and physical characteristics identifications concluded that the subgrade of Jalan Tanak Awu-Pengembur is an expansive soil.</em> <em>The results of mechanical identification stated that the design value of the California Bearing Ratio (CBR) soaked soil sample was 2%.</em> <em> The design value of CBR soaked has met the minimum requirements as a road subgrade</em><em>. However, for expansive soil subgrades, the CBR value needs to be increased to greater than 6% with subgrade improvement in the form of cement stabilization or embankment material of choice with a minimum thickness of 600 mm (MDP 2017). </em><em>The results of the CBR test with variations in water content in saturated and unsaturated conditions, at the beginning of the curve the increase in the CBR value of the soil to matric suction is linear</em><em>. </em><em>The results of the CBR test with variations in water content in saturated and unsaturated conditions, at the beginning of the curve the increase in the CBR value for matric suction is linear, furthermore, at an increase in matric suction between 600 kPa-2400 kPa, the CBR value begins to increase significantly, the increase in matric suction is higher (between 2400 kPa-20000 kPa), the increase in the CBR value </em><em>to </em><em>the matric suction is more ramps.</em></p> <p> </p> <p><em> </em></p> Heni Pujiastuti Adryan Fitrayudha Adiman Fariyadin Hafiz Hamdani Copyright (c) 2023 Jurnal Teknik Sipil 2023-12-21 2023-12-21 30 3 419 428 10.5614/jts.2023.30.3.10 Analisis Pola Pergerakan ke Universitas dengan Aplikasi GIS Studi Kasus: Institut Teknologi Bandung https://journals.itb.ac.id/index.php/jts/article/view/20331 <p>Badan Pusat Statistik Kota Bandung pada tahun 2020, jumlah pelajar dan mahasiswa pada Kota Bandung tercatat mencapai lebih dari 544.000 orang. Mahasiswa yang menggunakan kendaraan pribadi maupun angkutan umum menyebabkan seringnya terjadi kemacetan pada ruas - ruas jalan menuju kampus, terutama pada jam perkuliahan. Tujuan dari penelitian ini adalah mengevaluasi pola pergerakan menuju Institut Teknologi Bandung dan mengurangi penggunaan kendaraan pribadi menuju kampus. Penelitian ini dilakukan dengan melakukan analisis matriks asal tujuan dan moda yang digunakan untuk mencapai universitas yang ditinjau berdasarkan hasil survei. Selain itu dianalisis trayek angkot untuk menuju kampus dari tempat tinggal mahasiswa. Untuk analisisnya sendiri, penelitian ini dilakukan dengan menggunakan aplikasi ArcGIS.</p> <p>Mayoritas mahasiswa ITB Ganesha menggunakan Motor, yaitu sebanyak 50,9% mahasiswa. Selain itu didapatkan 21,8% menggunakan ojek online, 10,4% menggunakan mobil, 7,6% mahasiswa menggunakan angkot, 8,9% mahasiswa yang berjalan kaki, dan 0,3% mahasiswa menggunakan sepeda. Untuk kelurahan yang terletak jauh dari ITB Ganesha, mahasiswa cenderung memilih untuk menggunakan kendaraan pribadi seperti motor dan mobil. Sedangkan untuk yang berada di sekitar ITB sendiri memiliki pemilihan moda yang lebih bervariasi seperti dengan berjalan kaki, menggunakan sepeda, angkot, maupun ojek online. Secara keseluruhan, kelurahan yang berada di sekitar ITB memerlukan hanya 1 kali angkot untuk mencapai ITB. Sedangkan kelurahan yang jauh dari ITB memerlukan 2 kali angkot untuk mencapai ITB. Jika suatu kelurahan memerlukan 2 kali angkot, maka biaya yang dikeluarkan juga akan semakin besar. Selain itu waktu menunggu angkot juga akan semakin lama.</p> <p><em>The Central Bureau of Statistics for the City of Bandung in 2020, the number of students and students in the City of Bandung was recorded at more than 544,000 people. Students who use private vehicles or public transportation often cause traffic jams on the roads leading to campus, especially during class hours. The purpose of this research is to evaluate movement patterns at the Bandung Institute of Technology and reduce the use of private vehicles to reach campus. This research was conducted by analyzing the matrix of origin-destination and mode used to reach the university which was reviewed based on the survey results. In addition, an analysis of public transportation routes to get to the campus from the student's residence. For the analysis itself, this research was conducted using the ArcGIS application.</em></p> <p><em>The majority of ITB Ganesha students use motorbikes, namely 50.9% of students. In addition, 21.8% used online motorcycle taxis, 10.4% used cars, 7.6% students used public transportation, 8.9% students walked, and 0.3% students used bicycles. For sub-districts located far from ITB Ganesha, students tend to choose to use private vehicles such as motorbikes and cars. As for those around ITB, they have a more varied choice of modes such as walking, using bicycles, public transportation, or online motorcycle taxis. Overall, village districts around ITB only need 1 public transportation to reach ITB. Meanwhile, village districts that are far from ITB require 2 public transportation to reach ITB. If a village district requires 2 times the number of public transportation, the costs incurred will also be even greater. In addition, the waiting time for the bus will also be longer.</em></p> Sony Sulaksono Wibowo Widyarini Weningtyas Fairuz Adibah Oktaviani Riandiatmi Copyright (c) 2023 Jurnal Teknik Sipil 2023-12-21 2023-12-21 30 3 429 436 10.5614/jts.2023.30.3.11 Model Kriteria Teknis Dana Alokasi Khusus (DAK) Bidang Jalan Seluruh Indonesia https://journals.itb.ac.id/index.php/jts/article/view/22886 <p>Abstrak<br>Salah satu kriteria dalam perhitungan besaran indeks teknis terhadap pengalokasian Dana Alokasi Khusus (DAK) <br>infrastruktur bidang jalan di Indonesia ialah kriteria teknis dengan mempertimbangkan tujuh indikator data teknis <br>yang meliputi data-data kondisi jalan tidak mantap, kondisi jembatan, kinerja jalan, alokasi pemeliharaan rutin jalan,<br>alokasi APBD belanja modal untuk penanganan jalan, nilai pelaporan e-monitoring DAK dan nilai pelaporan <br>dalam kebijakan satu peta/SHP sebagaimana ditetapkan oleh kementerian teknis terkait. Melalui tujuan penelitian <br>ini untuk mengevaluasi keseluruhan indikator data teknis berdasarkan hubungan dan pengaruh masing-masing <br>variabel data teknis, menguji data antar variabel data teknis serta mendapatkan model terbaik dari hasil uji statistik<br>variabel data teknis dengan pengumpulan data sekunder terhadap 506 daerah (32 Provinsi, 393 Kabupaten dan 81 <br>Kota) seluruh Indonesia. Hasil studi menunjukkan bahwa indikator-indikator data teknis masing-masing memiliki <br>hubungan satu sama lain dan kelayakan model regresi secara simultan memiliki pengaruh signifikan terhadap <br>fungsi model yang dibentuk. Penentuan model terbaik yang dipilih model ialah model Kjtm, model Aabmj dan <br>model Npe. Dengan demikian, peranan ketiga indikator tersebut menunjukkan keterkaitan pola penilaian sebagai <br>objek vital dalam meningkatkan pembangunan dan pemeliharaan sektor infrastruktur bidang jalan di daerah.</p> <p><br>Abstract<br>One of the criteria in calculating the amount of the technical index for the allocation of the Special Allocation Fund <br>(DAK) for road infrastructure in Indonesia is the technical criteria by considering seven technical data indicators <br>which include data on unstable road conditions, bridge conditions, road performance, routine road maintenance <br>allocations, capital expenditure APBD allocations for road handling, DAK e-monitoring reporting value and <br>reporting value in the one map policy/SHP as determined by the relevant technical ministry. The purpose of this <br>study is to evaluate the overall technical data indicators based on the relationship and influence of each technical <br>data variable, test the data between technical data variables and get the best model from the statistical test results <br>of technical data variables by collecting secondary data on 506 regions (32 Provinces, 393 Districts and 81 Cities) <br>throughout Indonesia. The study results show that the technical data indicators each have a relationship with each <br>other and the feasibility of the regression model simultaneously has a significant effect on the function of the model <br>formed. Determination of the best model selected models are Kjtm model, Aabmj model and Npe model. Thus, the <br>role of the three indicators shows the relationship of the assessment pattern as a vital object in improving the <br>development and maintenance of the road infrastructure sector in the region.<br><br></p> Desi Meriana Bambang Sugeng Subagio Najid Najid Copyright (c) 2023 Jurnal Teknik Sipil 2023-12-21 2023-12-21 30 3 437 448 10.5614/jts.2023.30.3.12 Analisis Pengaruh Penambahan Limbah Tailing PT. Freeport Sebagai Bahan Stabilisasi Tanah Pada Lapis Pondasi Jalan https://journals.itb.ac.id/index.php/jts/article/view/20600 <p>Stabilisasi tanah adalah suatu proses untuk memperbaiki sifat-sifat tanah dengan menambahkan bahan aditif agar dapat menaikkan kekuatan tanah. Tanah lempung adalah jenis tanah yang memiliki nilai daya dukung yang kecil sehingga diperlukan upaya stabilisasi agar dapat meningkatkan nilai daya dukungnya. Wilayah Indonesia cenderung mempunyai tanah jenis lempung contohnya seperti daerah Universitas Musamus, Rimba Jaya, Kabupaten Merauke, Provinsi Papua Selatan. Tujuan dari penelitian ini yaitu untuk mengetahui karakteristik tanah dan untuk mengetahui pengaruh penambahan semen + <em>tailing</em> terhadap nilai kuat tekan bebas. Di dalam penelitian ini, proses stabilisasi yaitu mencampur tanah asli dengan semen + <em>tailing </em>dalam berbagai variasi yaitu 8% semen + 5% <em>tailing</em>, 8% semen + 10% <em>tailing</em>, dan 8% semen + 15% <em>tailing</em>. Berdasarkan hasil penelitian diperoleh bahwa sampel tanah dapat diklasifikasikan sebagai tanah lempung dengan plastisitas tinggi yaitu A-6 menurut AASHTO. Penambahan semen dan <em>tailing </em>mempengaruhi nilai kuat tekan bebas, tanah asli memiliki nilai kuat tekan 9.62 kg/ setelah distabilisasi dengan kadar 8% semen dan <em>tailing</em> dengan variasi kadar 5%, 10% dan 15% nilai UCS yang didapatkan adalah 21.73 kg/ , 24.95 kg/ , dan 26.19 kg/ . Selain itu, hasil pengujian menunjukkan bahwa penambahan semen dan <em>tailing</em> dengan variasi persentase dapat meningkatkan nilai CBR <em>soaked </em>menjadi 10.71% dengan persentase optimum pada kadar fly ash 15%. Berdasarkan hasil tersebut dapat disimpulkan bahwa semen dan <em>tailing </em>mampu menaikkan daya dukung tanah lempung.</p> <p>Soil stabilization is a process to improve soil properties by adding additives to increase soil strength. Clay soil is a type of soil that has a small bearing capacity, therefore stabilization is needed to increase its bearing capacity value. The majority of Indonesia's territory tends to have clay soil type, for example, around Muramus University, Rimba Jaya, Merauke, South Papua. The aim of this research is to determine the characteristics of the soil and to ensure the effectiveness of the addition of cement and tailing on the value of unconfined compressive strength. In this research, the stabilization process involved mixing original soil with cement + tailing in any variations, which is 8% cement + 5% tailing ash, 8% cement + 10% tailing, and 8% cement + 15% tailing. The soil sample can be classified as clay with high plasticity, namely A-6 according to AASHTO. The addition of cement + tailing affects the value of unconfined compressive strength, the original soil has a compressive strength value of 9.62 kg/cm<sup>2</sup> after stabilization with 8% cement and tailing with varying levels of 5%, 10% and 15% UCS values ​​obtained are 21.73 kg/ , 24.95 kg/ , dan 26.19 kg/ . In addition, the results shows that the addition of cement and tailing with varying percentages can increase the soaked CBR value to 10.71% with the optimum percentage at 15% tailing composition.</p> <p> </p> Irianto Irianto Pangeran Holong Sitorus Didik S S Mabui Reny Rochmawati Franky E P Lapian Copyright (c) 2023 Jurnal Teknik Sipil 2023-12-21 2023-12-21 30 3 449 456 10.5614/jts.2023.30.3.13 Tren Tinggi Gelombang Laut di Wilayah Pengelolaan Perikanan (WPP) Indonesia Periode 1977–2021 (45 Tahun) https://journals.itb.ac.id/index.php/jts/article/view/21382 <p>Abstrak<br />Pemahaman gelombang laut sangat penting bagi aktivitas maritim, khususnya di negara kepulauan seperti <br />Indonesia. Pada studi ini, tren jangka panjang kecepatan angin dan tinggi gelombang signifikan (Significant Wave <br />Height/SWH) di Wilayah Pengelolaan Perikanan (WPP) Indonesia dianalisis selama 1977–2021 (45 tahun) dengan <br />menggunakan data dari European Centre for Medium-Range Weather Forecast (ECMWF) Reanalysis generasi <br />kelima (ERA5). Secara keseluruhan, kecepatan angin dan SWH di perairan Indonesia mengalami kenaikan. Ratarata tren kecepatan angin dan SWH di seluruh WPP Indonesia sebesar 0,29 cm/s/tahun dan 0,19 cm/tahun. Tren <br />jangka panjang tinggi gelombang akibat swell dan wind sea di WPP Indonesia juga mengalami kenaikan, dengan <br />nilai rata-ratanya sebesar 0,18 dan 0,05 cm/tahun. Perairan Indonesia yang mengalami kenaikan tren kecepatan <br />angin dan tinggi gelombang terbesar berada di WPP yang berbatasan langsung dengan laut lepas, seperti di WPP <br />717 (perairan utara Papua), 572 (perairan barat Sumatra), dan 573 (perairan selatan Jawa). Fenomena El NiñoSouthern Oscillation (ENSO), yakni El Niño (La Niña) berpengaruh terhadap penurunan (peningkatan) nilai <br />kecepatan angin dan SWH rata-rata tahunan di WPP Indonesia, khususnya di WPP yang terletak di perairan <br />Indonesia bagian dalam. Hasil penelitian ini dapat digunakan sebagai langkah awal dalam mitigasi dan adaptasi <br />terhadap perubahan iklim. <br /><br />Abstract<br />Understanding ocean waves is essential for maritime activities, especially for archipelagic countries such as <br />Indonesia. In this study, the long-term trend of wind speed and Significant Wave Height (SWH) in the Indonesia’s <br />Fisheries Management Areas (IFMAs) were analyzed during 1977–2021 (45 years) using data from the European <br />Center for Medium-Range Weather Forecast (ECMWF) fifth generation reanalysis (ERA5). The results show an <br />overall wind speed and SWH in the Indonesian seas have increased. The average trend of wind speed and SWH in <br />all IFMAs were 0.29 cm/s/year and 0.19 cm/year. The long-term trend of wave height due to swell and wind sea in <br />the IFMAs has also increased, with an average value of 0.18 and 0.05 cm/year. The highest increasing trend of <br />wind speed and wave height were found in IFMAs facing the open ocean, such as IFMAs 717 (Northern Papua <br />waters), 572 (Western Sumatran waters), and 573 (South Java waters). The El Niño-Southern Oscillation (ENSO) <br />phenomenon, El Niño (La Niña) events affected the decrease (increase) in the annual average of the wind speed and <br />SWH values in IFMAs, especially in IFMAs located in the inner seas. The results of this study could be used as an <br />early assessment for mitigation and adaptation to climate change.<br /><br /></p> Ainun Azhari Nining Sari Ningsih Copyright (c) 2023 Jurnal Teknik Sipil 2023-12-21 2023-12-21 30 3 457 464 10.5614/jts.2023.30.3.14 Analisis Kinerja Modulus Resilien dan Ketahanan Fatigue Campuran AC-WC dengan Asbuton Murni, BNA Blend, dan Aspal Pen 60/70 https://journals.itb.ac.id/index.php/jts/article/view/22885 <p>Abstrak<br>Salah satu kekayaan alam Indonesia adalah Aspal Pulau Buton di Provinsi Sulawesi Tenggara yang terkenal <br>dengan sebutan asbuton. Berdasarkan penelitian dari Pusjatan pada tahun 2011 jumlah sumber material asbuton <br>berjumlah hampir 662 ton. Jenis campuran beraspal yang digunakan pada penelitian ini adalah campuran lapis <br>aus AC-WC (Asphaltic Concrete Wearing Course). Tujuan penelitian ini adalah untuk mengetahui kinerja modulus <br>resilien dan ketahanan fatigue dari campuran beraspal AC-WC dengan menggunakan asbuton murni, BNA Blend,<br>dan aspal pen. 60/70. Sesuai dengan hasil pengujian karakteristik aspal yang telah dilakukan, asbuton murni dan <br>BNA Blend memiliki nilai penetrasi yang lebih rendah dibandingkan dengan aspal pen. 60/70. Hasil pengujian<br>stabilitas menunjukkan bahwa campuran dengan BNA Blend mempunyai nilai yang paling tinggi yaitu 1432 kg, <br>berbanding 1310 kg pada campuran dengan asbuton murni, dan berbanding 1209 kg pada campuran dengan aspal<br>pen. 60/70. Hasil pengujian modulus resilien pada campuran dengan asbuton murni dan BNA Blend memiliki nilai<br>lebih tinggi dibandingkan dengan aspal pen. 60/70 pada suhu 25 °C dan 35 °C, dan hampir setara pada suhu 45 °C.<br>Campuran AC-WC dengan BNA Blend memiliki ketahanan fatigue yang lebih baik dibandingkan campuran dengan<br>aspal pen. 60/70, sedangkan campuran dengan asbuton murni memiliki ketahanan fatigue yang paling rendah.</p> <p><br>Abstract<br>One of Indonesia's natural resources is Buton Island Asphalt in Southeast Sulawesi Province which is known as <br>asbuton. Based on research from Pusjatan in 2011, the number of asbuton material sources amounted to nearly 662 <br>tons. The type of mix asphalt used in this study is a mix of asphalt concrete wearing course (AC-WC). The purpose<br>of this study was to determine the performance of the resilient modulus and fatigue resistance of the AC- WC asphalt <br>mixture using pure asphalt, BNA Blend, and pen asphalt. 60/70. In accordance with the results of asphalt <br>characteristic tests that have been carried out, pure asphalt and BNA Blend have a lower penetration value <br>compared to pen asphalt. 60/70. The stability test results showed that the mixture with BNA Blend had the highest <br>value, namely 1432 kg, compared to 1310 kg in the mixture with pure asphalt, and compared to 1209 kg in the <br>mixture with pen asphalt. 60/70. The results of the resilience modulus test on a mixture with pure asphalt and BNA<br>Blend have a higher value compared to pen asphalt. 60/70 at 25 °C and 35 °C, and nearly equivalent at 45 °C. The<br>AC-WC mixture with BNA Blend has better resistance than the mixture with asphalt pen. 60/70, while mixtures with <br>pure asbuton have the lowest fatigue resistance.<br><br></p> Ariefian Iman Adiwidodo Harmein Rahman Nasuhi Zain Copyright (c) 2023 Jurnal Teknik Sipil 2023-12-21 2023-12-21 30 3 481 490 10.5614/jts.2023.30.3.16 Analisis Perubahan Kecepatan pada Jalan Tol Semarang-Demak Akibat Bencana Banjir Rob di Pesisir Utara Semarang https://journals.itb.ac.id/index.php/jts/article/view/21223 <p><em>Problematika banjir rob telah menimbulkan berbagai macam kerugian mulai dari aspek kesehatan, lingkungan, kehidupan sosial ekonomi, dan infrastruktur. Dampak langsung banjir terhadap infrastruktur jalan berupa kerusakan fisik meliputi biaya rekonstruksi jalan yang rusak, sedangkan dampak tidak langsung meliputi biaya akibat kemacetan dan terhambatnya pengiriman logistik. Sebagai bentuk strategi adaptasi fisik terhadap kondisi banjir rob di Semarang Utara, penyelenggara jalan saat ini tengah melakukan pembangunan jalan Tol Semarang-Demak untuk mempertahankan kemampuan layan berupa arus lalu lintas pada jaringan. Kajian ini difokuskan untuk menganalisis perubahan kecepatan akibat banjir rob di ruas jalan Semarang-Demak. Berdasarkan hasil pemodelan, pada kondisi jalan tidak tergenang banjir, dihasilkan shifting lalu lintas sebesar 13% ketika tol Semarang-Demak seksi 2 beroperasi di tahun 2023. Penghematan waktu tempuh dari perjalanan via tol mencapai 40%. Puncak shifting terjadi pada genangan banjir setinggi 200mm dengan jumlah shifting sebesar 89%. Ketika kondisi jalan nasional Semarang-Demak tergenang banjir rob hingga 250mm, jalan tol dapat mempertahankan kinerjanya dengan penurunan kecepatan tempuh sebesar 12% sementara jalan nasional menurun hingga 78%. Dengan begitu, lalu lintas orang dan barang dapat dialihkan sementara melalui jalan tol tanpa terjadi kemacetan panjang. Beroperasinya tol Semarang-Demak menjadi salah satu bentuk resiliensi infrastruktur jalan terhadap bencana banjir rob yang menggenangi jalan nasional Semarang-Demak.</em></p> <p> </p> <p><em>Tidal floods have caused various health, environmental, socioeconomic, and infrastructural losses. The direct impact of flooding on road infrastructure causing physical damage includes the cost of reconstructing damaged roads, and the indirect result includes costs due to congestion and delays in logistics delivery. As a form of physical adaptation strategy to tidal flood conditions, road operators are constructing the Semarang-Demak Toll Road to maintain traffic flow serviceability on the network. This study focused on analyzing speed changes due to tidal flooding on the Semarang-Demak road section. Based on traffic modeling, a 13% shift was generated when Semarang-Demak toll road section 2 operated in 2023 under normal road conditions. Traveling through the Semarang-Demak toll reduced travel time by 40%. The shifting peak occurred at a flood inundation height of 200 mm, with a shifting amount of 89</em>%. <em>In the simulation of tidal flood inundation up to 250mm, speed reduction by traveling through toll is manageable by 12%</em> <em>while the national road decreased by 78%. Thus, people and goods traffic can be temporarily diverted through toll roads without causing long traffic jams. The operation of the Semarang-Demak toll road is a form of road infrastructure resilience against tidal floods that inundated the Semarang-Demak national road.</em></p> Estiyani Windra Kusumowardani Sony Sulaksono Wibowo Febri Zukhruf Copyright (c) 2023 Jurnal Teknik Sipil 2023-12-21 2023-12-21 30 3 491 493 10.5614/jts.2023.30.3.17