历史遗产砖砌体建筑抗地震倒塌能力评估  

Assessment of resistance to seismic collapse of historic masonry buildings

作　　者：杨小卫[1] 罗开海[2] 王亚勇[2] Yang Xiao-wei;Luo Kai-hai;Wang Ya-yong(School of Civil Engineering and Architecture,Zhongyuan University of Technology,Zhengzhou 450007,China;China Academy of Building Research,Beijing 100013,China)

机构地区：[1]中原工学院建筑工程学院,河南郑州450007 [2]中国建筑科学研究院,北京100013

出　　处：《工程抗震与加固改造》2019年第5期147-152,共6页Earthquake Resistant Engineering and Retrofitting

基　　金：国家自然科学基金项目(51574296)

摘　　要：在现有的历史遗产砖砌体建筑中由于遗产建筑保护的要求,不能进行精细的实地调查和试验测试,再加上结构特性、材料特性、设计图纸和施工技术等资料的缺失,造成该类建筑的抗地震倒塌能力评估较难达到精确量化的目标。本文结合工程实例,采用统计方法的简化定性模型,统计出结构整体抗倒塌能力指数,利用结构整体抗倒塌能力指数与抗地震倒塌的加速度之间的经验性函数关系,求出结构抗地震倒塌的加速度量化指标。再与不同地震动加速度作用下结构动力弹塑性倒塌分析比较,得出简化判断抗地震倒塌的加速度基本上能够满足结构倒塌的判断目标,为该类工程抗地震倒塌能力简化评估提供一种有益的参考。In the existing brick masonry building of historical heritage,due to the requirement of heritage building protection,it is difficult to carry out detailed field investigation and test,and for the lack of structural characteristics,material characteristics,design drawings and construction technology,the evaluation of seismic collapse resistance of this kind of building is difficult to achieve the goal of accurate quantification. In this paper,based on statistical method,a simplified qualitative model is used to calculate the overall anticollapse capability index of the structure. The empirical function relationship between the overall anti-collapse capability index of the structure and the acceleration of anti-seismic collapse is used to calculate the quantitative acceleration index of anti-seismic collapse of the structure. Compared with the dynamic elastic-plastic collapse analysis under different earthquake acceleration,it is concluded that the simplified judgment of the acceleration of anti-seismic collapse can basically meet the judgment target of structural collapse,which provides a useful reference for the simplified evaluation of the anti-seismic collapse ability of this kind of engineering.

关 键 词：砖砌体结构 结构整体抗倒塌能力指数 动力弹塑性倒塌分析 

分 类 号：TU313.3[建筑科学—结构工程] TU362