建筑钢结构进展2012,Vol.14Issue(2):14-27,14.
多楼层钢板剪力墙之耐震设计研究
Seismic Design of Multi-Story Steel Plate Shear Walls
摘要
Abstract
The seismic design method for the boundary members of Steel Plate Shear Wall ( SPSW) has not been fully implemented in the model building codes. The purpose of this research is to develop a convenient and reasonable capacity design procedure for the multi-storey SPSW buildings.This research proposes a new capacity design method for bottom column which can be applied to avoid the plastic hinge forming at the first story column top. The proposed method is verified using finite element shell model for six SPSW designs with three different aspect ratios. It is confirmed that the proposed method works well,could avoid the deformation concentration or the soft story mechanism at the 1" story of a SPSW. Finally, following the US seismic design force requirements for SPSW buildings of different stories in Los Angeles,nonlinear response history analyses are conducted in this research using a suite of 20 scaled SAC ground motions on different designs using the strip models to investigate the statistical results under the 10/50 level earthquakes.Comparing the dynamic responses with the estimated static maximum demands computed from the static capacity design method, it can be found that maximum accumulated panel force contributed to the column axial force is significantly overestimated in lower stories. Moreover,the dynamic maximum boundary beam end shear can be muchgreater than the estimated static demand when the panel thicknesses above and below the beam are identical, that cause the maximum accumulated boundary beam end shear may be underestimated in the lower stories. Base on the analytical results, this research proposes the method of estimating axial force demand of boundary members for different storey buildings. The safe and economic design of first story column can be conducted by proposed method.关键词
钢板剪力墙/多楼层钢板剪力墙/容量设计/耐震设计Key words
steel plate shear wall/multi-storey SPSW/ capacity designs seismic design分类
建筑与水利引用本文复制引用
蔡克铨,朱骏魁,李昭贤,游宜哲,林志翰..多楼层钢板剪力墙之耐震设计研究[J].建筑钢结构进展,2012,14(2):14-27,14.基金项目
台湾科学委员会专题研究计划(NSC-98-2625-M-002-015) (NSC-98-2625-M-002-015)