[1]淳庆,邱洪兴.栓焊钢桥3种典型细节的疲劳损伤试验[J].东南大学学报(自然科学版),2008,38(3):500-504.[doi:10.3969/j.issn.1001-0505.2008.03.027]
 Chun Qing,Qiu Hongxing.Experiment on fatigue damage of three typical details of bolt and weld steel bridge[J].Journal of Southeast University (Natural Science Edition),2008,38(3):500-504.[doi:10.3969/j.issn.1001-0505.2008.03.027]
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栓焊钢桥3种典型细节的疲劳损伤试验()
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《东南大学学报(自然科学版)》[ISSN:1001-0505/CN:32-1178/N]

卷:
38
期数:
2008年第3期
页码:
500-504
栏目:
土木工程
出版日期:
2008-05-20

文章信息/Info

Title:
Experiment on fatigue damage of three typical details of bolt and weld steel bridge
作者:
淳庆1 邱洪兴2
1 东南大学建筑设计研究院, 南京 210096; 2 东南大学土木工程学院, 南京 210096
Author(s):
Chun Qing1 Qiu Hongxing2
1 Architectural Design and Research Institute, Southeast University, Nanjing 210096, China
2 School of Civil Engineering, Southeast University, Nanjing 210096, China
关键词:
栓焊钢桥 搭接节点 不承载角焊缝节点 摩擦型高强螺栓连接节点 损伤演化方程
Keywords:
bolt and weld steel bridge lap joint non-load-bearing fillet weld joint high-strength bolted friction-type joint damage evolution equation
分类号:
TU391
DOI:
10.3969/j.issn.1001-0505.2008.03.027
摘要:
为了研究搭接节点、不承载角焊缝节点、摩擦型高强螺栓连接节点这3种典型栓焊钢桥细节的疲劳损伤演化规律,采用MTS疲劳试验机和正弦波加载的方法研究了这3种细节的损伤程度与循环比之间的关系,共进行了4个单面盖板搭接节点、2个不承载角焊缝节点和2个摩擦型高强螺栓连接节点的疲劳试验,建立了这3种典型细节基于Chaboche疲劳损伤模型的损伤演化方程:单面盖板搭接节点细节:D=1-[1-(n/Nf)0.197 0]0.177 9; 0197001779不承载角焊缝节点细节:D=1-[1-(n/Nf)0.016 06]0.018 58; 001606001858摩擦型高强螺栓连接节点细节:D=1-[1-(n/Nf)0.01147]0.021 53,001147002153可用于栓焊钢桥的疲劳寿命预测.
Abstract:
In order to research the damage evolution rules of three typical details of bolt and weld steel bridges(lap joints, non-load-bearing fillet weld joints and high-strength bolted friction-type joints),the relations between damage degree and cycle ratio of the three details were investigated by MTS(mechanical testing and simulation)fatigue testing machines with sinusoidal loadings. Fatigue tests of four one-side covering plate lap joints, two non-bearing fillet weld joints and two high-strength bolted friction-type joints were carried out. The damage evolvement equations of three typical details based on Chaboche fatigue damage model are presented respectively: one-side covering plate lap joints: D=1-[1-(n/Nf)0.197 0]0.177 9; non-load-bearing fillet weld joints: D=1-[1-(n/Nf)0.016 06]0.018 58; high-strength bolted friction-type joints: D=1-[1-(n/Nf)0.011 47]0.021 53. These formulas can be used for fatigue life evaluation of bolt and weld steel bridges.

参考文献/References:

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备注/Memo

备注/Memo:
作者简介: 淳庆(1979—),男,博士,工程师,cqnj1979@163.com.
引文格式: 淳庆,邱洪兴.栓焊钢桥3种典型细节的疲劳损伤试验[J].东南大学学报:自然科学版,2008,38(3):500-504.
更新日期/Last Update: 2008-05-20