CAJ | 학술논문

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。
운용 ABAQUS 유한원분석연건대설문동적가기혼응토체체심주조합장진행료수치모의，연구기항진성능。재유한원모형적계산결과여선전족척시건적시험결과진행료대비험증적기출상，연구료수향정압력、동구설치적대소급위치삼인소대장체항진성능적영향。연구표명：수수향압응력적증가，장체적항진성능득도개선；단수향압응력대겁한하재적영향소우대겁한하재하위이적영향；문동관도증대시，장체적겁한승재력강저，강저정도여장체절면적적삭약정도기본성비례；문동위치적개변，대장체항진성능적영향교소。
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.