|本期目录/Table of Contents|

[1]程 高,刘永健,邱洁霖,等.PBL加劲型矩形钢管混凝土不等宽T型节点应力集中系数分析[J].建筑科学与工程学报,2014,31(04):74-79.
　CHENG Gao,LIU Yong-jian,QIU Jie-lin,et al.Analysis of Stress Concentration Factor on Concrete-filled Rectangular Steel Tube T-joints Stiffened with PBL[J].Journal of Architecture and Civil Engineering,2014,31(04):74-79.
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《建筑科学与工程学报》[ISSN:1673-2049/CN:61-1442/TU]

卷:
31卷
期数:
2014年04期
页码:
74-79
栏目:
出版日期:
2014-12-17

文章信息/Info

Title:
Analysis of Stress Concentration Factor on Concrete-filled Rectangular Steel Tube T-joints Stiffened with PBL
作者:
程 高，刘永健，邱洁霖，罗亚林，俞文龙
长安大学公路学院
Author(s):
CHENG Gao, LIU Yong-jian, QIU Jie-lin, LUO Ya-lin, YU Wen-long
School of Highway, Chang’an University
关键词:
矩形钢管混凝土; T型节点; PBL; 应力集中系数; 非线性有限元分析
Keywords:
concrete-filled rectangular steel tube;  T-joint;  PBL;  stress concentration factor;  nonlinear finite element analysis
分类号:
-
DOI:
-
文献标志码:
A
摘要:
为研究开孔钢板连接件（PBL）加劲型矩形钢管混凝土T型节点的疲劳性能，进行了T型节点支管受拉、面内受弯及面外受弯的应力集中系数分析。基于矩形钢管混凝土T型节点受拉试验，设计了主管为矩形钢管、矩形钢管混凝土和PBL加劲型矩形钢管混凝土，支管为方钢管的T型节点受拉试件，并采用ABAQUS软件对其进行非线性有限元分析，其中主管钢管宽厚比为27，支主管宽度比为0.4。通过非线性有限元数值模拟，分析热点可能出现位置，并采用二次外推法计算得到支主管的应力集中系数。结果表明：PBL加劲型矩形钢管混凝土节点热点出现位置与矩形钢管节点和矩形钢管混凝土节点一致；与矩形钢管混凝土节点相比，PBL加劲型矩形钢管混凝土节点的应力集中系数显著降低，抗疲劳性能明显提高。
Abstract:
The stress concentration factor of concretefilled rectangular steel tube T-joints stiffened with PBL subjected to tension, inplane bending moment and outofplane bending moment were analyzed. Based on concretefilled rectangular steel tube T-joints test, specimens whose chord members were rectangular steel tube, concrete-filled rectangular steel tube and concretefilled rectangular steel tube stiffened with PBL were designed. Moreover, nonlinear finite element analysis was carried out using ABAQUS software. The chord thickness ratio was 27 and width ratio was 0.4. Hot spot was analyzed by finite element analysis method, and stress concentration factor was calculated by quadratic extrapolation. The results show that hot spot of concrete-filled rectangular steel tube T-joints stiffened with PBL is the same as steel tube T-joints; however, its stress concentration factor is lower and anti-fatigue property is better.

参考文献/References:

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备注/Memo

备注/Memo:
更新日期/Last Update: 2014-12-18