ANALYSIS AND CALCULATION METHOD OF BEARING CAPACITY OF STAINLESS STEEL BOLTED T-STUBS

LIU Xianghua; YUAN Huanxin; DU Xinxi; HU Song; DU Yushan

doi:10.13204/j.gyjz202004022

Volume 50 Issue 4

Jun. 2020

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LIU Xianghua, YUAN Huanxin, DU Xinxi, HU Song, DU Yushan. ANALYSIS AND CALCULATION METHOD OF BEARING CAPACITY OF STAINLESS STEEL BOLTED T-STUBS[J]. INDUSTRIAL CONSTRUCTION, 2020, 50(4): 125-131,144. doi: 10.13204/j.gyjz202004022

Citation:

LIU Xianghua, YUAN Huanxin, DU Xinxi, HU Song, DU Yushan. ANALYSIS AND CALCULATION METHOD OF BEARING CAPACITY OF STAINLESS STEEL BOLTED T-STUBS[J]. INDUSTRIAL CONSTRUCTION, 2020, 50(4): 125-131,144. doi: 10.13204/j.gyjz202004022

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ANALYSIS AND CALCULATION METHOD OF BEARING CAPACITY OF STAINLESS STEEL BOLTED T-STUBS

doi: 10.13204/j.gyjz202004022

1. School of Civil Engineering, Wuhan University, Wuhan 430072, China;
2. CITIC General Institute of Architectural Design and Research Co., Ltd., Wuhan 430014, China;
3. Central-South Architectural Design Institute Co., Ltd., Wuhan 430071, China

Received Date: 2019-12-20

Abstract

Abstract

In order to study the static bearing capacity of stainless steel bolted T-stub connections, the finite element models were developed to take into account the nonlinear material properties, contact conditions and prying forces. Parametric analyses were carried out to obtain the influence of key parameters on the ultimate resistance of the stainless steel T-stubs. It was revealed that the failure mode of T-stubs changed from the mode of complete yielding of the flange (mode 1) to bolt failure (mode 3) along with the increase of flange thickness. The bearing capacity of T-stub with failure mode 1 or the mode of bolt failure with yielding of the flange (mode 2) were reduced by the increase of the distance from the bolt hole to the web's edge and the decrease of nominal yield strength of the flange material. Moreover, higher value of the bolt diameter resulted in increase of the bearing capacity. Combined with parametric studies, the proposed calculation methods were developed. In view of the considerable strain hardening capacity of stainless steel alloys, the plastic moment of T-stub flange was modified to establish revised design formula.
- stainless steel,
- T-stub,
- bolted connections,
- FE analysis,
- static behavior

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References(21)

References

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