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Quantifying the Ductility-Related Force Modification Factor for 10-Story Timber-RC Hybrid Building Using FEMA P695 Procedure and Considering the 2015 NBC Seismic Hazard
| 题名： | Quantifying the Ductility-Related Force Modification Factor for 10-Story Timber-RC Hybrid Building Using FEMA P695 Procedure and Considering the 2015 NBC Seismic Hazard |
| 正文语种： | eng |
| 作者： | Tesfamariam, Solomon;Skandalos, Konstantinos;Goda, Katsuichiro;Bezabeh, Matiyas A.;Bitsuamlak, Girma;Popovski, Marjan |
| 作者单位： | Univ British Columbia Sch Engn Okanagan Campus 3333 Univ Way Kelowna BC V1V 1V7 Canada;Univ British Columbia Sch Engn Okanagan Campus 3333 Univ Way Kelowna BC V1V 1V7 Canada;Western Univ Dept Earth Sci & Stat & Actuarial Sci London ON N6A 5137 Canada;Univ British Columbia Sch Engn Okanagan Campus 3333 Univ Way Kelowna BC V1V 1V7 Canada;Western Univ Dept Civil & Environm Engn London ON N6A 5B7 Canada;FPInnovations Bldg Syst 2665 East Mall Vancouver BC V6T 1Z4 Canada |
| 关键词： | Cross-laminated timber wall;Concrete-timber hybrid system;Ductility factor;Overstrength factor;Seismic risk;Seismic performance;Seismic hazard |
| 摘要： | In this work, a 10-story uncoupled (10S-U) hybrid seismic force resisting system, consisting of cross-laminated timber (CLT) walls and reinforced concrete (RC) beams, is considered. Required design ductility factor Rd, in congruence with the National Building Code of Canada, was developed using FEMA P695 collapse risk procedure. Two trial Rd factors, R-d = 2 and R-d = 3, were first used to design the hybrid building for seismicity of Vancouver, BC, and 3D numerical models were developed in Open System for Earthquake Engineering Simulation (OpenSees) finite element framework. The energy dissipation of the structural system was enhanced using buckling restraining brace hold-downs and energy dissipator connection between the panels. The rocking response mechanism governed and, as a result, the cyclic pushover results show recentering capability. A suitable set of 30 ground motion records that reflect the seismic hazard of Vancouver, British Columbia, was selected in congruence with the 2015 National Building Code of Canada (NBC). Using incremental dynamic analysis, the collapse risk and collapse margin ratios were obtained to check the suitability of the two proposed Rd factors. The R-d = 2 factor was shown to be acceptable for the 10S-U structural system. (C) 2021 American Society of Civil Engineers. |
| 出版年： | 2021 |
| 期刊名称： | Journal of structural engineering |
| 卷： | 147 |
| 期： | 5 |
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