不锈钢T形件螺栓连接承载性能试验研究

袁焕鑫; 胡松; 杜新喜; 程晓燕

doi:10.6052/j.issn.1000-4750.2017.12.0986

不锈钢T形件螺栓连接承载性能试验研究

袁焕鑫^1,2,,
胡松¹,
杜新喜^1,2,
程晓燕^1,2

1.
武汉大学土木建筑工程学院, 湖北, 武汉 430072;
2.
武汉大学岩土与结构工程安全湖北省重点实验室, 湖北, 武汉 430072

基金项目: 国家自然科学基金项目（51508424）；湖北省自然科学基金项目（2018CFB441）；中国博士后科学基金特别资助项目（2015T80832）

详细信息

作者简介:
胡松(1994-),男,安徽人,硕士生,从事钢结构工程研究(E-mail:742016402@qq.com);杜新喜(1961-),男,陕西人,教授,博士,博导,从事钢结构工程研究(E-mail:duxinxi@163.com);程晓燕(1974-),女,湖北人,副教授,博士,从事钢结构工程研究(E-mail:xiaoyancheng39@163.com).

通讯作者:
袁焕鑫(1988-),男,湖南人,副教授,博士,从事钢结构工程研究(E-mail:yuanhx@whu.edu.cn).

中图分类号: TU391
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- 文章访问数: 458
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出版历程
- 收稿日期: 2017-12-26
- 修回日期: 2018-07-07
- 刊出日期: 2019-02-27

TESTS ON LOAD-CARRYING BEHAVIOR OF STAINLESS STEEL BOLTED T-STUB CONNECTIONS

1.
School of Civil Engineering, Wuhan University, Wuhan 430072, China;
2.
Key Laboratory of Geotechnical and Structural Engineering Safety of Hubei Province, Wuhan University, Wuhan 430072, China

摘要

摘要: 通过开展14组不锈钢T形件螺栓连接试件的单调拉伸试验，得到了各试件的极限承载力、破坏模式和撬力发展规律，分析翼缘厚度、翼缘材料、螺栓直径和螺栓预拉力等因素对不锈钢T形件承载性能的影响。结果表明：螺栓预拉力对试件的极限承载力没有明显影响，但会提高试件的初始刚度； T形件的破坏模式取决于翼缘和螺栓的相对关系，与螺栓预拉力无明显关系；撬力值随着翼缘厚度和螺栓直径的减小而增大，但极限承载力对应的撬力值与螺栓预拉力无关。将试验结果与现行欧洲、美国和中国规范的计算结果进行比较，表明现行国内外规范的相关计算公式均较保守，其中美国规范由于翼缘采用极限抗拉强度，计算结果与试验值最为接近。
- 不锈钢 /
- T形件 /
- 螺栓连接 /
- 撬力 /
- 单调拉伸试验
Abstract: A total of 14 stainless steel bolted T-stubs were tested under monotonic loading. The ultimate strength, failure modes and prying forces of the test specimens were obtained. The effects of the key parameters including the flange thickness, flange material grade, bolt diameter and bolt preloading were analyzed. It was revealed that the introduction of bolt preloading had little effect on the ultimate strength and failure mode, but resulted in increased initial stiffness for the T-stub specimens. The failure mode of the T-stub connections depended on both the tensile strength of the bolt and the flexural strength of the flange. The prying forces increased gradually with reduced flange thickness and bolt diameters, while the prying forces corresponding to the ultimate strength were not influenced by the bolt preloading. The test results were further compared with the strength predicted by the existing European, American and Chinese design codes. It was found that the existing design provisions were generally conservative for stainless steel bolted T-stub connections, among which the American code provided relatively better predictions. It may be attributed to the use of material tensile strength instead of yield strength.
- stainless steel /
- T-stub /
- bolted connections /
- prying force /
- monotonic loading test

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参考文献(33)

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不锈钢T形件螺栓连接承载性能试验研究

通讯作者: 袁焕鑫(1988-),男,湖南人,副教授,博士,从事钢结构工程研究(E-mail:yuanhx@whu.edu.cn).

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出版历程

TESTS ON LOAD-CARRYING BEHAVIOR OF STAINLESS STEEL BOLTED T-STUB CONNECTIONS

期刊类型引用(16)

其他类型引用(23)

计量

出版历程

目录

通讯作者:
袁焕鑫(1988-),男,湖南人,副教授,博士,从事钢结构工程研究(E-mail:yuanhx@whu.edu.cn).