Strength Analysis of Eccentric Rectangular Hollow Section X-Joints Subjected to Axial Compression in the Brace
Publication: Journal of Structural Engineering
Volume 150, Issue 12
Abstract
This paper investigates the mechanics behavior of eccentric rectangular hollow section (ERHS) X-joints subjected to axial compression in the brace, based on which analytical formulas are established to predict the strength of the ERHS X-joints. Static testing is conducted on two ERHS X-joint and one RHS X-joint specimens under brace compression, and the corresponding finite element (FE) analysis is performed. It is found that the ultimate strength of the ERHS X-joints with a medium brace/chord width ratio () is 39% higher than that of the RHS X-joints. The strength and initial stiffness of the ERHS X-joints increase when increases. Based on the load transferring mechanism, two analytical models and the corresponding equations are proposed to predict the strength of the ERHS X-joints with and . The proposed models are validated through experimental data and FE results.
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Data Availability Statement
Some or all data, models, or code that support the findings of this study are available from the corresponding author upon reasonable request.
Acknowledgments
The research of this paper was supported by the Natural Science Foundation of Zhejiang Province (No. LY20E080020).
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Information & Authors
Information
Published In
Journal of Structural Engineering
Volume 150 • Issue 12 • December 2024
Copyright
© 2024 American Society of Civil Engineers.
History
Received: Dec 26, 2023
Accepted: Jun 13, 2024
Published online: Sep 25, 2024
Published in print: Dec 1, 2024
Discussion open until: Feb 25, 2025
ASCE Technical Topics:
- Analysis (by type)
- Bracing
- Compressive strength
- Construction engineering
- Construction methods
- Engineering fundamentals
- Engineering mechanics
- Finite element method
- Laboratory tests
- Material mechanics
- Material properties
- Materials engineering
- Mechanical properties
- Methodology (by type)
- Numerical analysis
- Numerical methods
- Static tests
- Strength of materials
- Structural behavior
- Structural engineering
- Structural strength
- Tests (by type)
Authors
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