Pengaruh Dinding Bata dengan Bukaan (Lobang) terhadap Ketahanan Lateral Struktur Rangka Beton Bertulang

Maidiawati -, Jafril Tanjung, Hamdeni Medriosa

Abstract


Abstrak

Makalah ini menjelaskan serangkaian pengujian pada struktur rangka beton bertulang dengan dinding bata penuh dan dinding bata ada bukaan (lobang) untuk mengetahui konstribusi dinding bata ada bukaan terhadap kekuatan lateral struktur beton bertulang. Empat benda uji struktur rangka beton bertulang dan dinding bata dengan skala 1:4, yaitu satu benda uji struktur rangka tanpa dinding pengisi dan tiga struktur rangka dengan dinding bata, diuji dengan memberikan beban lateral (beban dorong) pada bagian atas balok struktur hingga benda uji mengalami keruntuhan (pushover). Besarnya perpindahan lateral direkam selama pengujian untuk mengontrol peningkatan beban lateral. Retak dan perkembangannya diobservasi selama pengujian untuk mengidentifikasi mekanisme keruntuhan benda uji. Hasil pengujian menunjukan bahwa keruntuhan benda uji didahului dengan keruntuhan pada dinding bata sebelum keruntuhan struktur kolom. Kekuatan dan kekakuan lateral struktur rangka dengan dinding pengisi lebih besar daripada kekuatan dan kekakuan struktur rangka tanpa dinding pengisi. Struktur rangka dengan dinding bata penuh memiliki kekuatan lateral lebih dari dua kali kekuatan lateral struktur rangka tanpa dinding. Dinding bata dengan satu bukaan di tengah seluas 40% dan dinding bata dengan dua bukaan seluas 25% meningkatkan kekuatan lateral struktur rangka beton bertulang masing-masing sebesar 25% dan 47% .

Abstract

This paper presents the series of experimental tests of reinforced-concrete (R/C) frame structures infilled with solid brick wall and opening brick walls to evaluate contributions of brick infills with openings to lateral strength of RC frames. Four 1/4-scale single story and single bay RC frame specimens, one bare frame and three infilled frames, were tested by applying the static monotonic lateral load to the upper beam of specimens. During the testing, lateral displacements of infilled structure were monitored to control the incremental lateral loads. The cracks, crack propagation and major cracks were observed throughout the tests to identify the mechanism failure of specimens. As the results, failure of brick wall was prior to the failure of RC columns. The lateral strength and stiffness of infilled frames were always higher than those of bare frame. The solid brick infill significantly increases the lateral strength of overall RC frame more than two times. The brick infill with a center opening of size 40% and the brick infill with 2 (two) openings of size 25% increase the lateral strength of R/C frame by about 25% and 47%, respectively.



Keywords


Struktur rangka beton bertulang, dinding bata, bukaan, kekuatan lateral.

Full Text:

PDF

References


Badan Standarisasi Nasional, 2002, SNI 03–1726–2002, Tata Cara Perencanaan Ketahanan Gempa untuk Bangunan Gedung, Jakarta.

Badan Standarisasi Nasional, 2002.a, SNI 03–2847–2002, Tata Cara Perhitungan Struktur Beton untuk Bangunan Gedung, Jakarta.

Choi, H., Yoshiaki, Nakano., and Sanada, Y., 2005, Seismic Performance and Crack Pattern of Concrete Block Infilled Frames. Bulletin of ERS, No. 38.

Goutam, Mondal., and Sudhir, K., Jain, M., 2008, Lateral Stiffness of Masonry Infilled Reinforced Concrete (RC) Frames with Central Opening, Earthquake Spectr Earthquake Engineering Research Institute (EERI)a, Vol. 24, No. 3, 701–723. DOI: 10.1193/1.2942.376.

Imran, I., Hendrik, F., 2009, Perencanaan Struktur Gedung Beton Bertulang Tahan Gempa, Penerbit ITB, Bandung.

The Japan Building Disaster Prevention Association [JBDPA], 2005, English Version 1st, Standard for Seismic Evaluation of Existing Reinforced Concrete Buildings. Building Research Institute, Japan.

Maidiawati, Sanada, Y., 2008, Investigation and Analysis of Buildings Damaged during the September 2007 Sumatra Indonesia Earthquakes, Journal of Asian Architecture and Building Engineering, 7 (2), 371-378.

Maidiawati, Sanada, Y., Konishi, D., and Tanjung, J., 2011, Seismic Performance of Nonstructural Brick Walls Used in Indonesian R/C Buildings, Journal of Asian Architecture and Building Engineering, 10 (1), 203-210.

Maidiawati, Oo, T., Sanada, Y., 2012, A Simple Approach for Determining Contact Length between Frame and Infill of Brick Masonry Infilled R/C Frames, 15th World Conference on Earthquake Engineering, Lisboa, Portugal.

Maidiawati, Sanada, Y., 2013, Modeling of brick masonry infill and application to analyses of indonesian R/C frame buildings, The Thirteenth East Asia-Pacific Conference on Structural Engineering and Construction (EASEC-13), Sapporo, Japan. http://hdl.handle.net/2115/54474.

Maidiawati, Sanada, Y., 2016, R/C Frame–infill interaction model and its application to Indonesian buildings, Journal of Earthquake Engineering & Structural Dynamics. Doi: 10.1002/eqe.2787.

Surendran, S., and Kausihk, H.B., 2012, Masonry Infill RC frame with openings: Review of in-plane lateral load behaviour and modeling approaches, The Opening Construction and Building Technology Journal, Vol. 6, (Suppl 1-M9), 126–154.

Tanjung, J., Maidiawati, 2016, Studi Eksperimen Tentang Pengaruh Dinding Bata Merah Terhadap Ketahanan Lateral Struktur Beton Bertulang, Jurnal Teknik Sipil ITB, Vol. 23 No.2, 99-106.




DOI: http://dx.doi.org/10.5614%2Fjts.2017.24.2.5

Refbacks

  • There are currently no refbacks.


web
analytics

Lisensi Creative Commons

This work is licensed under a Creative Commons Attribution-NoDerivatives 4.0 International License