Research on the Performance of Prestressed High-Strengh Bolted Joints of Fully-Prefabricated Long-Span Spatial Structures

LIU Tingyong; ZHANG Ailin; LI Jiulin

doi:10.3724/j.gyjzG24022208

Volume 54 Issue 8

Aug. 2024

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LIU Tingyong, ZHANG Ailin, LI Jiulin. Research on the Performance of Prestressed High-Strengh Bolted Joints of Fully-Prefabricated Long-Span Spatial Structures[J]. INDUSTRIAL CONSTRUCTION, 2024, 54(8): 44-53. doi: 10.3724/j.gyjzG24022208

Citation:

LIU Tingyong, ZHANG Ailin, LI Jiulin. Research on the Performance of Prestressed High-Strengh Bolted Joints of Fully-Prefabricated Long-Span Spatial Structures[J]. INDUSTRIAL CONSTRUCTION, 2024, 54(8): 44-53. doi: 10.3724/j.gyjzG24022208

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Research on the Performance of Prestressed High-Strengh Bolted Joints of Fully-Prefabricated Long-Span Spatial Structures

doi: 10.3724/j.gyjzG24022208

1. Faculty of Architecture, Civil And Transportation Engineering, Beijing University of Technology, Beijing 100124, China;
2. Beijing Urban Construction Group Co., Ltd., Beijing 100088, China

Received Date: 2024-02-22
Available Online: 2024-09-19

Abstract

Abstract

In order to promote the innovation and intelligent construction of fully-prefabricated long-span prestressed steel structures, a novel joint which named prestressed high-strength bolted (PHSB) joint was constructed. The influence of key parameters on the performance of PHSB joints was studied. The finite element (FE) model of PHSB joints was established by using ABAQUS FE software, and the accuracy and reliability of the joint model were verified by comparing the experimental results with the numerical simulation results. In the parametric, 54 FE models were established to study the effects of different parameters on tensile/compressive properties of PHSB joints. After that, the tension/compression design method of the joints was proposed. The results indicated that the tensile/compressive properties of the joints could significantly improve with the disc thickness increased; reducing the thickness of the perforated angle steel could appropriately increased the tensile yield load, but reduce its ultimate compressive load; the ultimate tensile/compressive load increased with the increase of perforated cross plate thickness; the change of the sleeve height had little effect on the tensile/compressive properties; moreover, increasing the initial prestress could increase the initial tensile stiffness, but reduce its initial compressive stiffness.
- fully-prefabricated space steel structure,
- prestressed high-strength bolted joint,
- tensile performance,
- compressive performance,
- parameter analysis,
- joint design

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References(18)

References

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