钢结构端板连接刚性节点力学性能影响因素研究

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【中图分类号】：TU391 【文献标志码】：A 【文章编号】：1008-3197（2025）05-50-06

【DOI编码】：10.3969/j.issn.1008-3197.2025.05.012

Research on the Influencing Factors ofMechanical Performance of Steel Structure RigidEnd Plate ConnectionJoints

XIN Ningning1，WANG Guohui¹，PENG Xiaochen²，LI Zhenyu²，LIU Chao1，RONG Bin² （1.China2OthealurgicalGoupoorationLiited，ang9，hia;holfhiteureadCivilEing， Tianjin University，Tianjin，China）

【Abstract】：Inordertostudythe mechanical propertiesofmechanical performanceofstelstructurerigidend plateconnection joint，anonlinear finite element model withcomplicated contactwasestablishedand verified using availabletestdata.Five parameters affcting the strengthand initial stiffnessof theend-plate connection were examinedusing parametric analysis.The numericalanalysis reveals thatthe diameterof thehigh-strength bolts， thepretension forceofboltsand the thickness of the end plate stiffeners had significant effcts onthe initial stifess and ultimate bearing capacity，whilethe thickness of the column stiffning ribs has a greatereffct on the initial stiffness but limited effect on the ultimate strength.The column axial compression ratio has almost no effcton the performance of the joint.When designing rigid joints，it is importantto ensure thatthe minimum thicknessof the column stifeners is equal to the flange thickness of the beam.Additionally，the diameterof high-strength bolts should not be excessivelysmall，the thicknessof the end platestiffeners should be greater than the thickness of the beam web and the preload ofthe high-strengthbolts must be applied in accordance with the specified standards.

【Keywords】： end-plate;rigid joints；steel structure;mechanical properties

轻型房屋钢结构作为一种发展迅速的新型结构形式，具有施工速度快、建筑造型美观、用钢量少、造价低等优点，被广泛应用于各类工业和民用建筑中。（剩余5062字）