Vector-IM-based assessment of alternative framing systems under bi-directional ground-motion
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- 作者：C. Má ; laga-Chuquitaype ; c.malaga@imperial.ac.uk ; K. Bougatsas
- 关键词：Steel framing systems ; Bi-directional seismic loads ; 3D steel frames ; Seismic fragilities ; Performance-based seismic design ; Vector-valued seismic assessment
- 刊名：Engineering Structures
- 出版年：2017
- 出版时间：1 February 2017
- 年：2017
- 卷：132
- 期：Complete
- 页码：188-204
- 全文大小：3313 K
- 卷排序：132
文摘
Detailed probabilistic assessment of the response of alternative 3D framing systems subjected to bi-directional loading. Vector-valued and scalar based formulations compared and benefits of vector analysis quantified. Reductions in dispersion of up to 40% at larger drifts possible with adequate IM-vector definition. Consistently lower drift hazards experienced by one-way frames in comparison with two-way systems. Results useful to discern the framing system with better performance at different deformation levels.