锈蚀栓钉的钢-混凝土组合梁静力特性数值分析

摘要

运用有限元软件ANSYS分别建立考虑滑移与抛起效应的两种三维组合梁的有限元模型，与石卫华博士的试验结果对比，验证有限元模型的准确性，计算结果表明：随着栓钉锈蚀率的增加，两种组合梁的承载力和延性均下降，其中完全抗剪组合梁承载力退化与部分抗剪组合梁性能退化较慢，但是延性下降较快。%The paper applies finite element software ANSYS and respectively establishes two sets of tri-dimensional composite beam finite element models by taking slipping and throwing effect into consideration,compares it with doctor Shiweihua’s experimental result,and testifies the accu-racy of finite element model. The calculation results show that:with the stud corrosion rate increasing,the bearing capacity and ductility of two sets of composite beams reduces,in addition,the bearing capacity of completely shearing-resisting composite beam and partial shearing-resisting composite beam reduce more slowly,but their ductility reduces faster.