Research on Mechanical Properties of Hemispherical Slide Cable-Strut Joints

ZHAO Xi; LUO Chaoyi; ZHANG Yanxia; WANG Qingbo

doi:10.13204/j.gyjzG21112215

Volume 52 Issue 8

Aug. 2022

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ZHAO Xi, LUO Chaoyi, ZHANG Yanxia, WANG Qingbo. Research on Mechanical Properties of Hemispherical Slide Cable-Strut Joints[J]. INDUSTRIAL CONSTRUCTION, 2022, 52(8): 132-139. doi: 10.13204/j.gyjzG21112215

Citation:

ZHAO Xi, LUO Chaoyi, ZHANG Yanxia, WANG Qingbo. Research on Mechanical Properties of Hemispherical Slide Cable-Strut Joints[J]. INDUSTRIAL CONSTRUCTION, 2022, 52(8): 132-139. doi: 10.13204/j.gyjzG21112215

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Research on Mechanical Properties of Hemispherical Slide Cable-Strut Joints

doi: 10.13204/j.gyjzG21112215

1. School of Civil and Transportation Engineering, Beijng University of Civil Engineering and Architecture, Beijing 100044, China;
2. Beijing Advanced Innovation Center for Future Urban Design, Beijing University of Civil Engineering and Architecture, Beijing 100044, China

Received Date: 2021-11-22
Available Online: 2022-12-01

Abstract

Abstract

The prestressed tension overall structure represented by cable dome and suspended dome is novel and beautiful in appearance and has high structural efficiency.During the tensioning process of cable dome and suspended dome, the friction between the ring cable and the cable strut joint will cause the loss of prestress, which will lead to a significant decrease in the mechanical properties of the prestressed structure after forming. A new type of hemispherical sliding cable strut joint was proposed. The hemispherical cover plate is easy to connect multi-directional components, and the rollers are embedded with rolling bearings, which reduces the friction coefficient with the central axis and effectively reduces the prestress loss rate. The finite element analysis of the mechanical properties of the hemispherical sliding cable-strut joint was carried out by ABAQUS, and the reliability of the finite element model was verified by comparing the measured data of the experiment. Finite element analysis showed that the cable-strut joint had good performance and could meet the design requirements. By comparing the finite element and test results, the prestress loss of this joint was about 4.2% under the actual working conditions, which was greatly reduced compared to the traditional cable-strut joint with a prestress loss of more than 10%.
- cable dome,
- cable-strut joints,
- prestress loss,
- rolling bearing,
- FE analysis

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References(23)

References

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