Issue |
E3S Web Conf.
Volume 331, 2021
International Conference on Disaster Mitigation and Management (ICDMM 2021)
|
|
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Article Number | 05007 | |
Number of page(s) | 6 | |
Section | Structural Engineering | |
DOI | https://doi.org/10.1051/e3sconf/202133105007 | |
Published online | 13 December 2021 |
Assessment of seismic responses toward multi-story buildings of steel special moment resisting frame by considering the setback irregularities
1 Civil Engineering Department, Andalas University, , 25163 Limau Manis, West Sumatera, Indonesia
2 Civil Engineering Department, Astra Manufacturing Polytechnic, 14330 Sunter, Jakarta, Indonesia
3 Civil Engineering Department, Bengkalis State Polytechnic, 28711 Sungai Alam, Riau, Indonesia
* Corresponding author: ridho@eng.unand.ac.id
Setback irregularities are considered where discontinuity between adjacent stories is excessive. This irregularity caused the probability of high damage at structures subjected to strong earthquake motion. For this purpose, this study was conducted by modeling the steel special moment frame (SMF) structures using a finite element calculation program with nonlinear static analysis compared to Padang city’s response spectrum. The buildings are also modeled with two types of setbacks: single and multiple setbacks. The results of this paper are discussed including the explanation of many parameters that relate to elastic and inelastic seismic responses of steel special moment frame (SMF). Based on the results, the setback irregularities, both single and multiple setbacks, the inelastic seismic responses are adequately sufficient to SNI 1726 2019 regarding drift limit. The other seismic responses are also discussed in terms of fundamental periods, inter-story drifts, story stiffness, and base shear. Referred to Indonesian Seismic Provision, SNI 1726 2019, it is found that single setback building has more adequate than multiple setbacks in terms of seismic responses. Then, the seismic assessments between these setbacks are explained to address the recommendations about future prevention toward damages and failures in steel buildings.
© The Authors, published by EDP Sciences, 2021
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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