Pengembangan Sambungan Hubungan Join Balok-Kolom Kayu dengan Ring-Modifikasi dan Perkuatan-Paku

Yosafat Aji Pranata, Anang Kristianto, Olga Catherina Pattipawaej

Abstract


Abstrak. Sambungan antar komponen struktur, khususnya hubungan join balok-kolom memberikan kontribusi yang dominan terhadap perilaku struktur bangunan gedung. Penelitian ini bertujuan untuk mempelajari perilaku kekuatan dan kekakuan sambungan kayu dengan alat sambung baut, yaitu hubungan join balok-kolom. Dalam penelitian ini dikembangkan model perkuatan sambungan dengan adanya ring-modifikasi dan perkuatan-paku (selanjutnya disebut sambungan PRP) untuk meningkatkan tingkat daktilitas sambungan. Ruang lingkup penelitian antara lain jenis kayu yang digunakan yaitu Meranti (Shorea spp.), Rengas (Gluta spp.), dan Keruing (Dipterocarpus spp.) dengan rentang berat jenis berkisar antara 0,47-0,72. Pengujian eksperimental dilakukan di laboratorium dengan tipe pembebanan monotonik. Model benda uji yang digunakan mengacu pada metode uji baut pada sambungan kayu ASTM D5652-95. Penggunaan ring-modifikasi dan perkuatan paku memberikan kontribusi positif terhadap
hasil pengujian sambungan khususnya perilaku kinerja kekuatan dan kekakuan sambungan kayu, yaitu beban batas proporsional yang dapat dicapai sambungan PRP meningkat berkisar 3,09-19,89% lebih tinggi dibandingkan dengan sambungan standar (tanpa perkuatan), beban batas ultimit yang dapat dicapai sambungan PRP 3,47-28,94% lebih tinggi dibandingkan dengan sambungan standar. Secara umum tingkat daktilitas yang dapat dicapai sambungan PRP adalah 3,69-11,03% lebih tinggi dibandingkan dengan sambungan standar.

Abstract. The connection between the structural members, especially the beam-column joints provide a dominant contribution to the behavior of the building structure. The aim of this research is to study the behavior of strength and stiffness of timber connection with a bolt connection, which are the beam-column joints. In this study is developed a reinforcement connection model with the ring-modification and nail-strengthening (hereinafter referred to as the PRP connection) to improve the connection ductility. The scope of the study is the types of timber used such as Meranti (Shorea spp.), Rengas (Gluta spp.), and Keruing (Dipterocarpus spp.) with Specific Gravity ranged from 0.47 to 0.72. Experimental tests are performed in the laboratory using the monotonic loading type. The use of specimens are based on a standard test method for bolts connections in wood ASTM D5652-95. The use of ringmodification and nail-strengthening give a positive contribution to the test results, especially the connection strength and stiffness performance behavior of timber connections, i.e., the proportional limit load can be achieved the PRP connection ranged from 3.09 to 19.89% that increases higher than the standard connection (without reinforcement), ultimate limit loads that can be achieved the PRP connection from 3.47 to 28.94% which is higher compared to the standard connection. In general, the level of ductility can be achieved the PRP connection between 3.69 and 11.03% which is higher compared to the standard connection.

Keywords


Sambungan kayu; Join balok-kolom; Ring-modifikasi; Perkuatan-paku; Daktilitas.

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References


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DOI: http://dx.doi.org/10.5614%2Fjts.2015.22.1.5

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