Steel structure modular building is an emerging architectural structural system composed of multiple standardized modular units.It has the advantages of fast construction,controllable quality.However,the current research on modular steel structures is not in-depth enough,especially in terms of their anti-collapse performance.This paper used the finite element analysis software ABAQUS to study the anti-collapse performance of steel structure modular buildings subject to the removal of a single corner module,two edge modules,and four inner modules.The final deformation mode,load-displacement curve,and internal force changes of the structure were obtained.Moreover,the influence of wall panel thickness on the anti-collapse bearing capacity and redistribution of internal force during the collapse process of the structure was studied.The results show that the contribution of the wall panel system to the anti-collapse bearing capacity of the structure ranges from 45%-70%.When the thickness of the wall panel exceeds a certain critical value,increasing its thickness has little effect on its contribution to the collapse resistance of the structure.Meanwhile,the increase in wall panel thickness limits the development of the tensile force in the module connections,and may even result in compression force in the connection.
关键词
钢结构模块/墙板系统/有限元模拟/抗倒塌性能
Key words
modular steel structure/steel wall panel system/finite element simulation/anti-collapse performance
维普
万方数据