高强铝合金板件螺栓连接低温抗剪性能试验研究

石宇; 吴玥; 李江; 薛暄译; 汪建桥

doi:10.3724/j.gyjzG24091402

高强铝合金板件螺栓连接低温抗剪性能试验研究

doi: 10.3724/j.gyjzG24091402

石宇^1,2,
吴玥^1,2,
李江^1,2,
薛暄译^1,2,
汪建桥^1,2

1. 重庆大学土木工程学院, 重庆 400045;
2. 重庆大学山地城镇建设与新技术教育部重点实验室, 重庆 400045

详细信息

作者简介:
石宇,博士,主要从事轻钢结构方面的研究。Email:wuyue0091@163.com

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出版历程
- 收稿日期: 2024-09-14
- 网络出版日期: 2026-06-06
- 刊出日期: 2026-04-20

Experimental Research on the Shear Performance of Bolted Connections of High-Strength Aluminum Alloy Plates at Low Temperatures

SHI Yu^1,2,
WU Yue^1,2,
LI Jiang^1,2,
XUE Xuanyi^1,2,
WANG Jianqiao^1,2

1. School of Civil Engineering, Chongqing University, Chongqing 400045, China;
2. Key Laboratory of New Technology for Construction of Cities in Mountain Area of the Ministry of Education, Chongqing University, Chongqing 400045, China

摘要

摘要: 通过对9个高强铝合金板件螺栓连接进行低温环境下单调拉伸试验，研究了温度和边距对其抗剪性能的影响规律。研究发现：低温基本不会影响试件的破坏模式，而边距由1.0d₀增大到1.5d₀和2.0d₀时，破坏模式由净截面破坏变为端部撕裂和横向撕裂的混合破坏；试件的极限承载力基本不受低温影响，但当边距由1.0d₀增大到1.5d₀时会显著提高试件的极限承载力（极限承载力提高了约1倍）。最后将试验结果与国内外规范的计算结果进行了对比，发现美规能较好地预测试件的极限承载力，而中规和欧规在边距不小于1.5d₀时的计算结果较为保守。
- 高强铝合金 /
- 螺栓连接 /
- 低温 /
- 破坏模式 /
- 抗剪性能
Abstract: The influence of temperature and edge distance on the shear performance of nine high-strength aluminum alloy plate bolted connections was studied through low-temperature monotonic tensile tests. The results showed that low temperatures did not significantly affect the failure mode of specimens. When the edge distance increased from 1.0d₀ to 1.5d₀ and 2.0d₀， the failure mode changed from net cross-section failure to a mixed failure of end tearing and transverse tearing； the ultimate bearing capacity of the specimen was basically not affected by low temperatures. However， when the edge distance increased from 1.0d₀ to 1.5d₀， the ultimate bearing capacity of the specimen increased significantly， by about 100%. The experimental results were compared with the calculation results of domestic and international standards. It was found that the American standard can better predict the ultimate bearing capacity of the specimens， while the calculation results of the Chinese and European standards are more conservative when the edge distance is not less than 1.5d₀.
- high-strength aluminum alloy /
- bolted connection /
- low temperature /
- failure mode /
- shear performance

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