[1]王帆,陈志进,刘丁丁,等.T形、Y形带内置环肋圆钢管相贯节点承载力计算方法[J].东南大学学报(自然科学版),2014,44(4):811-816.[doi:10.3969/j.issn.1001-0505.2014.04.023]
 Wang Fan,Chen Zhijin,Liu Dingding,et al.Calculation method for bearing capacities of internal ring-stiffened tubular T- and Y-joints[J].Journal of Southeast University (Natural Science Edition),2014,44(4):811-816.[doi:10.3969/j.issn.1001-0505.2014.04.023]
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T形、Y形带内置环肋圆钢管相贯节点承载力计算方法()
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《东南大学学报(自然科学版)》[ISSN:1001-0505/CN:32-1178/N]

卷:
44
期数:
2014年第4期
页码:
811-816
栏目:
土木工程
出版日期:
2014-07-16

文章信息/Info

Title:
Calculation method for bearing capacities of internal ring-stiffened tubular T- and Y-joints
作者:
王帆陈志进刘丁丁罗敏宁晨蓝小艺
华南理工大学亚热带建筑科学国家重点实验室, 广州 510640; 华南理工大学建筑设计研究院, 广州 510640
Author(s):
Wang Fan Chen Zhijin Liu Dingding Luo Min Ning Chen Lan Xiaoyi
State Key Laboratory of Subtropical Building Science, South China University of Technology, Guangzhou 510640, China
Architectural Design and Research Institute, South China University of Technology, Guangzhou 510640, China
关键词:
圆钢管相贯节点 T形节点 Y形节点 横向加劲肋 承载力
Keywords:
tubular joints T-joint Y-joint ring-stiffeners bearing capacity
分类号:
TU391
DOI:
10.3969/j.issn.1001-0505.2014.04.023
摘要:
为了得到T形、Y形带内置环肋圆钢管相贯节点的承载力计算公式,对528个节点进行参数化分析.结果表明:T形、Y形节点的环肋设置在冠点时,对节点承载力提高率的贡献最小,而设置在距冠点到鞍点距离的0.7~0.8倍时,贡献最大;支管受压时,T形带肋节点承载力提高值随环肋厚度和宽度的增大而增大,但受支主管直径比和主管径厚比的影响较小;T形、Y形带肋节点承载力提高值之比受支主管直径比和环肋厚度、宽度的影响较小,而随支主管夹角的增大呈近似线性增加;考虑主管应力比以及支管拉力的影响时,可沿用现行规范中无肋节点的相关参数.结合现行规范,提出了T形和Y形节点的承载力计算公式,适用性检验结果证明了所提公式的可靠性.
Abstract:
In order to obtain calculation equations for the bearing capacities of internal ring-stiffened tubular T- and Y-joints,parametric analysis for 528 tubular joints is carried out.The results show that for T- and Y-joints,the smallest increase in joints’ bearing capacity occurs when the stiffeners are located on the crown,while the increases are highest when the stiffeners are located 0.7 to 0.8 times of the distance between the crown and the saddle from the crown.When the brace is under compression,the ring-stiffened T-joints’ bearing capacity increases with the increase of the thickness and the width of the ring-stiffeners,and the effects of the ratio of brace diameter to chord diameter and the ratio of chord diameter to chord thickness are insignificant.The ratio of the increase of the bearing capacity of T-joints to that of Y-joints linearly increases with the increase of the angle between the brace and the chord,and the ratio of brace diameter to chord diameter, as well as the thickness and the width of ring-stiffeners are less effective. The related parameters of the unstiffened joints in existing codes can be adopted to investigate the effects of the ratio of chord axial stress and the brace tension.According to the related formulas in existing codes,the calculation equations for T- and Y-joints are proposed and the applicability test demonstrates their reliability.

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期: 2013-12-24.
作者简介: 王帆(1971—),男, 博士, 高级工程师,wangfan@scut.edu.cn.
基金项目: 国家杰出青年科学基金资助项目(51025829)、“十一五”国家科技支撑计划资助项目(2011BAJ09B03)、 华南理工大学亚热带国家重点实验室开放课题资助项目(2014KB29).
引用本文: 王帆,陈志进,刘丁丁,等.T形、Y形带内置环肋圆钢管相贯节点承载力计算方法[J].东南大学学报:自然科学版,2014,44(4):811-816. [doi:10.3969/j.issn.1001-0505.2014.04.023]
更新日期/Last Update: 2014-07-20