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带通窗填充墙框架结构试验及有限元分析

DOI: 10.13197/j.eeev.2014.03.34.jinh.005, PP. 34-40

Keywords: 填充墙,框架结构,短柱,伪静力试验,有限元,砌体

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Abstract:

本文以汶川地震中倒塌的漩口中学教学楼为原型,设计并制作了两个1/2比例的单层两不等跨RC框架试验模型,包括纯框架及带通窗加气砌块填充墙框架,进行了伪静力对比试验及非线性有限元分析。研究结果表明,填充墙提高了框架结构的强度及刚度,但降低了其延性、耗能能力及抗倒塌能力;带通窗填充墙易引起框架结构的短柱效应,改变框架结构的破坏模式;加气砌块及轻质砌块对框架柱的约束作用较小,不易引起显著的短柱破坏,故为避免框架结构发生短柱破坏,应优选轻质填充墙材料。

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