设门洞的加气混凝土砌体芯柱组合墙抗震性能分析  

Analysis on Seismic Behavior of Aerated Concrete Masonry Composite Wall with Core Columns and a Door Opening

作　　者：吴会阁[1] 赵彦[2] 曹秀玲[1] 谌会芹[1] 

机构地区：[1]石家庄经济学院勘查技术与工程学院,050031 [2]防灾科技学院,三河065201

出　　处：《混凝土与水泥制品》2013年第10期62-65,共4页China Concrete and Cement Products

基　　金：河北省自然基金项目(E2012403012);河北省教育厅青年基金项目(Q2012146);校内青年科学研究基金项目(XN201204)

摘　　要：运用ABAQUS有限元分析软件对设门洞的加气混凝土砌体芯柱组合墙进行了数值模拟,研究其抗震性能。在有限元模型的计算结果与先前足尺试件的试验结果进行了对比验证的基础上,研究了竖向正压力、洞口设置的大小及位置三因素对墙体抗震性能的影响。研究表明:随竖向压应力的增加,墙体的抗震性能得到改善;但竖向压应力对极限荷载的影响小于对极限荷载下位移的影响;门洞宽度增大时,墙体的极限承载力降低,降低程度与墙体截面积的削弱程度基本成比例;门洞位置的改变,对墙体抗震性能的影响较小。In order to study the seismic performance of aerated concrete block masonry composite wall with a door opening,numerical simulation was conducted by using finite element software ABAQUS. The finite element results were verified with the laboratory results of full-scale specimens. On this basis, the composite walls with different parameters were investigated, which includes their vertical compression stress, opening sizes and opening position. The results show that with the increasing of vertical compression stress, the seismic performance improve ; however, the effect of the vertical compression stress on the ultimate load is less than that on the displacement under ultimate load;With the increasing of the door width, the decrease in the wall＇s bearing capacity is proportional to the decrease in the wall＇s net area; and the change of door＇s position has less effect on seismic performance of the composite wall.

关 键 词：加气混凝土 组合墙 抗震性能 数值模拟 

分 类 号：TU522.3[建筑科学—建筑技术科学]