梁柱连接外伸端板厚度快速计算  

A Fast Computation of Extended End-Plate of Beam-to-Column Connection

作　　者：童根树[1] Genshu Tong(Institute of High Performance Structures,Zhejiang University,Hangzhou 310058,China)

机构地区：[1]浙江大学高性能结构研究所,杭州310058

出　　处：《钢结构（中英文）》2024年第8期52-54,共3页Steel Construction（Chinese & English）

摘　　要：介绍了由板件和螺栓本身决定的一个高强螺栓的抗拉承载力(纳入了螺栓孔的影响)。介绍了钢梁的未加劲外伸端板厚度计算公式,对现行的公式是否能够保证强螺栓、弱端板这样的抗震设计要求进行了判断。对加劲端板节点,介绍了带1/4椭圆锥面的塑性机构,由此确定的端板厚度比GB 51022—2015《门式刚架轻型房屋钢结构技术规定》中的公式确定的值大4%~10%,对比了未加劲端板与加劲端板的厚度,发现后者基本上是前者的75%。The tensile capacity of a high-strength bolt,determined by the bolt itself and the steel plate respectively is introduced,the effect of bolt hole is considered.The required thickness of extended unstiffened end-plate is presented,and the weak-end-plate and strong tensile high-strength bolt requirement for seismic design is discussed.A correct plastic mechanism,in which 1/4 elliptical conical plastic surface is included,is used to determine the thickness of stiffened end-plate.The thickness by the new equation is found to be 4~10%thicker than by the equation in GB 51022-2015.The thickness of the stiffened end plate is found to be about 0.75 times the thickness of the unstiffened end plate.

关 键 词：外伸端板 梁柱连接 高强螺栓 

分 类 号：TU391[建筑科学—结构工程]