异形平面的建筑结构抗震性能研究

针对某中学教学楼建筑设计为异形"王"字形平面,研究抗震缝的合理设置,并根据分缝后各单体结构平面及竖向不规则程度,分别提出不同的抗震性能化目标,对抗震特别不利单体进行弹塑性时程分析,研究其塑性发展历程及损伤机制,并提出合理的抗震构造加强措施。分析结果表明,通过设置合理的抗震性能目标和加强措施,建筑在强震作用下性能良好,为同类型建筑的结构设计提出了合理的解决方案。

SEISMIC ANALYSIS OF IRREGULAR MIDDLE-SCHOOL STRUCTURES

Aiming at the design of a secondary school teaching building,this paper designs the contours of the "Wang" shape plane,studies the reasonable setting of the seismic joints,and puts forward different seismic performance targets according to the plane and vertical irregularities of the individual structures after subcontracting.Elastic-plastic time history analysis is carried out,the damage process under strong earthquake is studied and several constructional measures are proposed.The study shows that by proper measures and seismic performance objectives,the irregular structures behave good seismic resistance even under rarely met earthquake.The result provides valuable solution for the similar irregular middle-school structures.