密肋复合墙体的地震损伤极限概率分析  

Probability analysis of seismic damage limits of multi-ribbed panel wall

作　　者：田洁[1] 姚谦峰[2] 黄炜[2] 

机构地区：[1]西安理工大学土木系,陕西西安710048 [2]西安建筑科技大学土木工程学院,陕西西安710055

出　　处：《地震工程与工程振动》2008年第4期123-130,共8页Earthquake Engineering and Engineering Dynamics

基　　金：国家自然科学基金项目(50578011);国家"十五"科技攻关课题项目(2002BA806B05)

摘　　要：密肋复合墙体是密肋壁板结构体系的主要承载构件,本文根据32块密肋复合墙体在单调及低周往复循环荷载作用下的试验结果,结合我国现行规范的目标性能,提出了针对密肋复合墙体的三个损伤性能水平及相应的量化参数,研究了这种新型墙体的损伤模型及各性能水平的允许极限破坏指标的概率特性。结果表明,采用四种地震损伤模型计算的墙体屈服、极限、破坏状态的损伤指数,在给定的显著性水平下分别服从正态分布、对数正态分布或极值Ⅰ型分布,并得到了分布的统计参数,可为该类墙体基于损伤性能的可靠度分析提供依据和参考。The multi-ribbed panel wall is a main bearing member in muhi-ribbed panel structure （MRPS）. Three performance levels and corresponding quantified parameters were presented on the basis of the test results of 32 whole-scale and half-scale multi-ribbed panel walls under monotonic horizontal and low reversed cyclic loading as well as according to seismic performance targets of Chinese Code. The seismic damage models and probability distributions of the multi-ribbed panel walls behavioural parameters, namely damage indexes at yield , ultimate and damage stages at three performance levels （＂ functional＂, ＂ damage control＂ and ＂collapse＂ ）, were analyzed. Resuhs show that at given remarkable levels （α = 0. 01,0. 05 ,0.10 ） , damage index limits at different performance levels generally follow normal distribution , logarithmic normal distribution or extreme value type I distribution. The statistical parameters have been obtained for different probabilistic models , which are necessary for reliability analysis based on damage performance of the multi-ribbed panel wall.

关 键 词：密肋复合墙体 性能水平 损伤模型 损伤指数 概率特性 

分 类 号：P315.96[天文地球—地震学]