密肋复合墙体的静力弹塑性分析  

The static elastoplastic analysis of multi-ribbed panel wall

作　　者：田洁[1] 姚谦峰[1] 黄炜[1] 

机构地区：[1]西安建筑科技大学土木工程学院

出　　处：《西安建筑科技大学学报（自然科学版）》2005年第3期301-306,共6页Journal of Xi'an University of Architecture & Technology(Natural Science Edition)

基　　金：国家自然科学基金资助项目(50078045);国家"十五"科技攻关资助项目(2002BA806B05)

摘　　要：针对新型密肋壁板结构中的复合墙体建立了Push-over分析简化计算模型,采用Push-over分析方法,利用大型结构分析程序SAP 2000n对复合墙体进行了罕遇地震作用下的计算,并与试验结果进行了比较.分析表明Push-over分析是对这种新型复合墙体进行弹塑性分析和性能评估的一种有效的方法,由于复合墙体独特的构造特点,使其承力构件(砌块、框格)能够分阶段释放地震能量,从而可有效提高结构的耗能能力和抗倒塌能力.The basic principles and methods of the static elasto-plastic analysis （push over） in FEMA273/274 and in ATC-40 are reviewed, the main calculation procedures were summarized and a case study was presented for the wall of multi-ribbed panel structure （MRPS） designed according to China Code for Seismic Design by means of SAP2000n. Based on test study and theoretical analysis, the paper has come up with a mechanical model for the wall which was equaled to a rigid frame with oblique compression strut. The static elasto-plastic analysis of a practical wall under the maximum earthquake has been achieved in terms of a simplified push-over analysis model of the multi-ribbed panel wall. It has been proved that. that push-over analysis is an effective method for elasto-plastic analysis and aseismic capability assessment of the multi-ribbed panel wall. Considering the special structure of multi-ribbed panel wall, the calculating results show that the damage process of the wall was, according to the dorder of infilled silicate blocks, concrete ribs, outer frames, released energy gradationally, has perfect energy dissipation and anti-collapse capacity, which agree well with the text results.

关 键 词：密肋复合墙体 PUSH-OVER分析 简化计算模型 

分 类 号：TU313[建筑科学—结构工程]