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为了推广蜂窝钢柱在工程中的应用,需对其抗震性能进行更加深入的分析。在考虑材料非线性、几何非线性及初始缺陷(初弯曲、残余应力)的情况下,利用ABAQUS有限元方法分析腹板开孔类型、孔洞大小、孔洞间净距、构件长度和腹板高厚比变化时对蜂窝钢柱抗震性能的影响。分析结果表明:不同开孔类型对蜂窝钢柱的后期刚度有一定影响;孔洞间净距对蜂窝钢柱抗震性能影响不大;蜂窝钢柱的抗震性能主要与孔洞大小、构件长度和腹板高厚比有关,蜂窝钢柱的抗震性能随着孔洞大小或构件长度的增大而减弱;随着腹板高厚比的增大,蜂窝钢柱的极限承载力和刚度随之增加,延性性能随之下降。
In order to promote the application of honeycomb steel columns in engineering, its seismic performance needs to be further analyzed. Considering the material nonlinearity, geometrical nonlinearity and initial defects (initial bending, residual stress), the open hole types, hole size, clearance between holes, component length and web thickness were analyzed by ABAQUS finite element method Influence of Ratio on Seismic Performance of Honeycomb Steel Column. The results show that the different open hole types have certain influence on the post-column stiffness of honeycomb steel columns. The clearance between holes has little effect on the seismic performance of honeycomb steel columns. The seismic performance of honeycomb columns is mainly related to the hole size, component length and web height Thickness ratio, the seismic performance of honeycomb steel columns decreases with the increase of hole size or component length. With the increase of web thickness-to-thickness ratio, the ultimate bearing capacity and stiffness of honeycomb steel columns increase, and the ductility Drop down.