采空残余变形对建筑物主要构件内力的影响

Influence of Goaf Residual Deformation Effect on Internal Force of Main Building Structure

采用大型有限元软件ANSYS,对煤矿沉陷区拟建建筑物的主要构件进行了内力分析,研究了在地表变形下1层主要构件较无地表变形下内力的相对变化值,得出在地表曲率变形较大的情况下,梁柱的内力相对增加值较大,梁内力增大幅度>100%,柱内力增大幅度>500%。对-1层至3层中内力变化较大的构件进行了分析,残余变形影响最大的是地下1层和地上1层,其次是地上2层和3层。以期为山西采空区的充分利用提供一定的设计参考。

Using large - scale finite element software ANSYS,the author analyzes the internal force of main components of proposed buildings in coal mining subsidence area. Under the ground surface deformation,1 layer main component without the values of relative change of the internal force under the surface deformation,it is concluded that under the condition of the surface curvature deformation,internal force of beam column adds value relatively large,beam internal force increases by more than 100% and column internal force increases by more than 500%. And 1 - 3 layer is analyzed,and the internal force changes in the larger member in the biggest impact of the residual deformation is 1 layer and ground floor underground,followed by the ground layer 2 and layer 3 . The study provides for certain use reference for Shanxi Province goaf.