山洪作用对砌体结构倒塌破坏的分析  

UNDER THE ACTION OF MOUNTAIN TORRENTS ON THE ANALYSIS OF THE MASONRY STRUCTURAL COLLAPSE DESTROYED

作　　者：李亚娥[1] 司应石[1] 徐忠浩[1] 刘超[1] 

机构地区：[1]兰州理工大学土木工程学院,兰州730050

出　　处：《低温建筑技术》2013年第9期51-54,共4页Low Temperature Architecture Technology

摘　　要：结构连续倒塌已成为严重威胁公共安全的重要问题,随着计算机水平的不断提高,数值模拟成为研究结构倒塌的主要手段。本文采用动力学分析软件LS-DYNA对砌体结构房屋在山洪作用下的破坏进行了数值模拟。从结构整体变形、关键点位移、速度和系统能量出发认识结构破坏机理。得出构造柱的延性对抵抗倒塌很重要。Currently, the progressive collapse of the structures has a serious threat to the public safe- ty. With continuously improvements of the computers, numerical calculation and simulation methods have become mainstream ways for structural collapse. With the help of the dynamic analysis software LS-DY- NA, the damage of the masonry structure under the role of mountain torrents was simulated. The failure mechanism of structure was studied by the deformation of the whole structure, key point displacement, velocity and energy of the system. This paper concluded that the ductility of the constructional column is very important to resist collapse.

关 键 词：倒塌破坏 数值模拟 破坏机理 构造柱 

分 类 号：TU973.31[建筑科学—结构工程]