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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*
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2
摘 要

(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, 广岛 739-8527)

 

[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。

[关键词]梁柱偏心节点; 槽形钢折板; 力学行为; 屈服线理论

中图分类号:TU391文献标识码:A文章编号:1002-848X(2017)02-0016-07

 

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

Gao Jinhe1, Huang Weiling1,  Chang Yi1,  Chen Shijun1, Zhang Wangjie1, Xu Qian1, Tagawa Hiroshi2

(1 School of Civil and Architecture Engineering, East China University of Technology, Nanchang 330013, China;2 Graduate School of Engineering, Hiroshima University, Higashi-Hiroshima City 739-8527, Japan)

Abstract: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.

Keywords:eccentric beam-to-column joint; C-shaped steel plate; mechanical behavior; yield line theory

 

*国家自然科学基金(51568001),江西省自然科学基金(20142BAB216005,20151BAB206053)。

 

作者简介:高金贺,博士,讲师,Email:12813630@qq.com。

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