A Design Method of Steel T-Stud Joints Under Tension Considering the Influence of Prying Force

HOU Zhaoxin; ZHANG Shenghua; HU Yi; GONG Chao; QIAN Yuandi; LIU Zhaoxiang

doi:10.3724/j.gyjzG23052501

Volume 55 Issue 3

Mar. 2025

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Article Navigation > INDUSTRIAL CONSTRUCTION > 2025 > 55(3): 181-187

HOU Zhaoxin, ZHANG Shenghua, HU Yi, GONG Chao, QIAN Yuandi, LIU Zhaoxiang. A Design Method of Steel T-Stud Joints Under Tension Considering the Influence of Prying Force[J]. INDUSTRIAL CONSTRUCTION, 2025, 55(3): 181-187. doi: 10.3724/j.gyjzG23052501

Citation:

HOU Zhaoxin, ZHANG Shenghua, HU Yi, GONG Chao, QIAN Yuandi, LIU Zhaoxiang. A Design Method of Steel T-Stud Joints Under Tension Considering the Influence of Prying Force[J]. INDUSTRIAL CONSTRUCTION, 2025, 55(3): 181-187. doi: 10.3724/j.gyjzG23052501

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A Design Method of Steel T-Stud Joints Under Tension Considering the Influence of Prying Force

doi: 10.3724/j.gyjzG23052501

1. Central Research Institute of Building and Construction Co., Ltd., MCC Group, Beijing 100088, China;
2. JCHX Mine Engineering Institute Co., Ltd., Beijing 100070, China;
3. China MCC17 Group Co., Ltd., Ma'anshan 243000, China

Received Date: 2023-05-25
Available Online: 2025-06-07
Publish Date: 2025-03-20

Abstract

Abstract

When calculating the bearing capacity of T-stud joints in tension， the effect of prying force cannot be ignored. Domestic standards Technical Specification for High Strength Bolted Connection of Steel Structure （JGJ 82-2011）， Code for Design of Boiler Steel Structure （GB/T 22395-2008） and Technical Specification for Steel Structure of Portal Rigid Frame Lightweight Building （GB 51022-2015）， etc. have directly or indirectly introduced the influence of prying force. However， compared with European and American standards， the connection joints designed according to Chinese standards still have the problems of large number of bolts and large thickness of end plates. Based on the three failure modes of T-stud joints under tension， the calculation formula of the tensile capacity of the joint considering the influence of prying force was deduced， and the correlation curve between the tensile capacity of the joint and the thickness of the T-stud member was obtained. By comparing the formula with the domestic and foreign specifications， the key factors affecting the tensile capacity of the joints were obtained， and the reasons for the conservative design in our country were found out. Suggestions were given on the revision of the design formula for the tensile capacity of the T-stud joints under tension in JGJ 82-2011； the analysis of the examples showed that the design method proposed in the paper was relatively close to the calculation results of the American code and the European code.
- T-stud connection,
- tensile capacity,
- prying force,
- design method,
- specification comparison

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References(18)

References

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