连接条件对填充墙倒塌影响的数值模拟分析  

Numerical simulation and analysis on collapse of infill walls under different connecting conditions

作　　者：葛海蓉[1] 叶燕华[1] 彭程[1] 朱铁梅[1] 

机构地区：[1]南京工业大学土木工程学院,江苏南京210009

出　　处：《南京工业大学学报（自然科学版）》2012年第6期136-140,共5页Journal of Nanjing Tech University(Natural Science Edition)

基　　金：江苏省建筑业科研资助项目(JGJH2008-22)

摘　　要：为了考察填充墙与主体框架不同连接条件对填充墙抗地震倒塌性能的影响,利用ABAQUS结构非线性分析软件,通过自接触和连接弹簧失效模拟框架填充墙在地震作用下的倒塌过程。采用离散式建模方法,将砂浆等效为三向砂浆弹簧。模拟分析结果表明:填充墙与框架梁刚性连接或柔性连接、与框架柱柔性连接均可以有效提高填充墙的抗倒塌能力。其中填充墙与框架梁、柱均设置合理柔性连接时其防倒塌能力最好。To investigate the anti-collapse ability of infill walls of frame structure with different connecting conditions,collapse simulation of the structure was carried out using ABAQUS software by self-contact and failure of connecting springs.The numerical simulation was made by the Distinct Element Method,and mortar was modeled using a three-dimensional mortar spring.Simulation results showed that the anti-collapse ability of infill walls could be improved using rigid connection or flexible connection with beams as well as flexible connection with columns.The wall using flexible connections with beam and frame columns had the best anti-collapse ability.

关 键 词：填充墙 倒塌 连接条件 数值模拟 

分 类 号：TU362[建筑科学—结构工程] TU375.4