摘要
采用了LS-DYNA显式算法对15片砖砌体墙进行了数值模拟。首先对已有试验结果的9片带圈梁和构造柱的砖砌体墙进行了数值模拟,并将模拟结果与试验结果进行对比,验证了有限元分析参数选取的合理性。然后在此基础上增设了6片砖砌体墙,研究了墙体开洞率及构造柱对砖砌体墙承载力和抗倒塌能力的影响。结果表明,墙体开洞降低了砖砌体墙的整体承载能力和抗倒塌能力,且降低幅度随墙体开洞率的增大而增大;构造柱对提高砖砌体墙的承载能力和抗倒塌能力作用显著。
Explicit algorithm of LS-DYNA was used to ＇conduct numerical simulation of 15 pieces of brick masonry walls. Firstly, numerical simulation of 9 pieces of brick masonry walls with ring beams and structural columns were compared with the tested results to verify the accuracy of finite element analysis parameter. Then, 6 pieces of brick masonry walls were added to study the influence of hole ratio of walls and structural columns on the bearing capacity of brick masonry walls and the collapse resistance capacity of brick masonry walls. The results indicate that the overall bearing capacity of brick masonry walls and the collapse resistance capacity of brick masonry walls have been reduced because of wall with opening, what＇s more, the reduction amplitude increases with the increase of hole ratio of walls. Structural columns have significant role in improving the bearing capacity of brick masonry walls and the collapse resistance capability of brick masonry walls.
出处
《建筑结构》
CSCD
北大核心
2017年第16期19-23,8,共6页
Building Structure
基金
国家自然科学基金资助项目(51578228)
国家重点研发计划专项资助项目(2016YFC0701400)
关键词
砖砌体墙
墙体开洞率
构造柱
承载能力
抗倒塌能力
brick masonry wall
hole ratio of walls
structural column
bearing capacity
collapse resistance capacity
