双角钢十字组合截面压杆承载力研究
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摘要
进行了160大规格Q420高强度双角钢十字组合截面构件的试验研究。得到了单节间和双节间压杆的受力性能和破坏模式。对该类构件进行数值模拟,考虑构件长细比、肢宽比和填板等对承载力的影响,并在此基础上提出计算方法。与试验结果进行对比,给出适合工程实际的组合截面承载力计算方法,可供工程设计参考使用。
In the study,160 of the specification Q420 high strength combined angle iron cross-section were tested.The theoretical analysis and the finite element analysis were conducted to study the compressive behavior of eccentric members with combined angle iron cross-section and the theoretical calculation method was proposed.The method considered the influence of the member slenderness ratio,extremity wide ratio and filled plate on the supporting capacity and compared with the data in the full-scale test.It proposed the computational method of composite section bearing capacity for the real engineering,in order to use in engineering design.
引文
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