轻质墙板填充墙开裂过程数值模拟及因素分析  

Numerical Simulation and FactorAanalysis of Light-weight Wallboard Infilling Wall Cracking Procedure

作　　者：易思容 杨伟军 邹佳明 YI Si-rong;YANG Wei-jun;ZOU Jia-ming(School of Civil Engineering/Changsha University of Science and Technology,Changsha 410114,China)

机构地区：[1]长沙理工大学土木工程学院,湖南长沙410114

出　　处：《山东农业大学学报（自然科学版）》2020年第5期951-954,共4页Journal of Shandong Agricultural University：Natural Science Edition

摘　　要：针对轻质墙板填充墙开裂现象,通过有限元软件ABAQUS建立分离式轻质墙板填充墙模型,分析轻质墙板填充墙接缝在温度作用下开裂及扩展全过程,讨论粘结界面峰值应力、断裂能、墙体长度、轻质墙板强度对轻质墙板填充墙接缝开裂的影响。结果表明:粘结界面法向峰值应力和断裂能影响墙体的初始开裂温差;墙体最大裂缝宽度与墙体长度呈正相关;轻质墙板强度和粘结界面强度的匹配度影响墙体裂缝形式。In engineering applications,cracks in the infilled walls of lightweight wall panels occur frequently,especially the cracks in the joints.In response to this problem,the general finite element software ABAQUS is used to establish a separate finite element model of the lightweight wallboard infill wall to analyze the factors that may affect wall cracking,which include peak stress and fracture energy of bonding interface,strength of lightweight wallboard,and wall length.The analysis shows that the normal peak stress and fracture energy of the bonding interface affect the initial cracking temperature of the wall,the maximum crack width of the wall is positively correlated with the wall length,the matching degree between the strength of the light wall panel and the bond interface strength affects the form of wall crack.

关 键 词：轻质墙板填充墙 Cohesive界面单元 裂缝 温度作用 

分 类 号：TU364[建筑科学—结构工程]