Study on the Influencing Factors of Ultimate Bearing Capacity for Tx-joints

DOI

10.2991/978-94-6463-449-5_6How to use a DOI?

Keywords

TX-joints; geometric effect; load effect; ultimate bearing capacity

Abstract

Based on the construction of steel structures of Xuzhou Concert Hall, the research on the behavior of TX-joints under the combined action of axial force and bending moment was conducted. Finite element (FE) models were established to investigate the influence of the interaction between in-plane T-type branches and out-plane X-type branches on the ultimate bearing capacity of TX-joints. The analysis was focused on the influence of the geometric effect and the load effect on the ultimate bearing capacity of joints under different β (the branch-to-chord width ratio) and load paths. Through linear regression analyses, the joint reinforcement coefficient under spatial action was obtained. It is shown that the expansion of the joints’ plastic zone can be effectively restricted by X-type branches. The compression capacity of joints enhances with the increase of X-type branches’ coefficient β. The stiffening effect of the in-plane T-type branch is not significant. The load effect on the ultimate bearing capacity of the joints is often negative. With the increase of the X-type branches’ moment, the ultimate compressive capacity of the joints will decrease, while the T-type branches’ axial force has little influence on the development of the joints’ plastic zone.

Copyright

© 2024 The Author(s)

Open Access

Open Access This chapter is licensed under the terms of the Creative Commons Attribution-NonCommercial 4.0 International License (http://creativecommons.org/licenses/by-nc/4.0/), which permits any noncommercial use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license and indicate if changes were made.

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TY  - CONF
AU  - Junwu Xia
AU  - Jiahui Qian
AU  - Xinqiang Xia
PY  - 2024
DA  - 2024/06/30
TI  - Study on the Influencing Factors of Ultimate Bearing Capacity for Tx-joints
BT  - Proceedings of the 2024 8th International Conference on Civil Architecture and Structural Engineering (ICCASE 2024)
PB  - Atlantis Press
SP  - 58
EP  - 66
SN  - 2589-4943
UR  - https://doi.org/10.2991/978-94-6463-449-5_6
DO  - 10.2991/978-94-6463-449-5_6
ID  - Xia2024
ER  -