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钢框架横向钢梁需要较大结构找坡时,节点需做成梁端加强型才能满足加劲肋布置要求,而梁端加强型梁柱节点域的受力性能较为复杂。本文采用ABAQUS有限元分析软件,利用隐式分析法,以结构找坡钢框架坡屋面停车场梁端加强型节点为研究对象,进行了节点域在单向荷载及循环荷载作用下的数值计算,计算结果表明对于需要结构找坡的钢框架结构,采用梁端加强型节点域设计合理、可靠。
When the steel frame horizontal steel beams need large structures to look for slopes, the nodes need to be reinforced with beam ends to meet the requirements of stiffener arrangement. However, the mechanical behavior of the strengthened beam-column joints in the beam ends is more complicated. In this paper, using ABAQUS finite element analysis software, the implicit analysis method is used to study the reinforced structure of beam-end reinforced joints in the structural steel roof sloping roof parking lot. The numerical calculation is carried out under unidirectional load and cyclic loading. The calculation results show that for the steel frame structure that needs to find the structure, the design of the reinforced node with beam end is reasonable and reliable.