H型钢梁-H型钢柱偏心节点局部屈服荷载承载力的力学行为研究  

Mechanical behavior research on local yield strength of eccentric H-beam to H-column joints

作　　者：高金贺[1] 黄伟玲[1] 昌毅[1] 陈士军[1] 张王杰[1] 许倩[1] 田川浩 Gao Jinhe Huang Weiling Chang Yi Chen Shijun Zhang Wangjie Xu Qian Tagawa Hiroshi(School of Civil and Architecture Engineering, East China University of Technology, Nanchang 330013, China Graduate School of Engineering, Hiroshima University, Higashi-Hiroshima City 739-8527, Japan)

机构地区：[1]东华理工大学建筑工程学院,南昌330013 [2]广岛大学工学研究科

出　　处：《建筑结构》2017年第2期16-22,共7页Building Structure

基　　金：国家自然科学基金(51568001);江西省自然科学基金(20142BAB216005;20151BAB206053)

摘　　要：针对槽形钢折板补强H型钢梁-H型钢柱的偏心节点,研究了节点局部屈服荷载承载力的力学行为。通过建立5种可能形成的塑性屈服破坏模型,利用屈服线理论,推导出H型钢梁-H型钢柱偏心节点的局部屈服荷载承载力计算公式。取包含梁受拉翼缘在内的节点构件(1/4模型)作为试件,进行了6组拉伸加载试验,验证偏心节点的弹塑性响应。通过对应变分布和翼缘平面外残余变形响应的分析来验证塑性屈服破坏模型的准确性。For eccentric H-beam to H-column joints strengthened by C-shaped steel plate,the local yield strength was researched.By applying the yield line theory,five different types of plastic yield failure model were build to deduce local yield strength formulas of H-beam to H-column joints.Six loading tests were performed for the local joint models,which include tensile flange（1/4 model） to examine the elastic-plastic behavior of the joints with eccentricity.The measured strain distributions and the residual flange deformations confirm the validity of the collapse mechanism.

关 键 词：梁柱偏心节点 槽形钢折板 力学行为 屈服线理论 

分 类 号：TU391[建筑科学—结构工程]