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Updated: Jun 30, 2025
05:26
Determination of the Mechanical Properties of Flexible Connectors for Use in Insulated Concrete Wall Panels
Published on: October 19, 2022
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Structural performance of detachable precast concrete column-column joint
1Research Centre of Wind Engineering and Engineering Vibration, Guangzhou University, Guangzhou, 510006, China.
Heliyon
|March 18, 2024
Summary
This study introduces a novel detachable precast concrete (DPC) joint for improved column-column connections. Optimized axial pressure enhances seismic performance, offering easier disassembly and clearer structural behavior.
Area of Science:
- Structural Engineering
- Civil Engineering
- Materials Science
Background:
- Current dry column-column connections exhibit complex load paths, uncertain stiffness, and disassembly challenges.
- Novel detachable precast concrete (DPC) joints offer a potential solution to these issues.
Purpose of the Study:
- To propose and analyze a novel detachable precast concrete (DPC) joint for column-column dry connections.
- To investigate the structural performance and seismic behavior of DPC joints using finite element analysis.
Main Methods:
- Development of finite element models for DPC joints.
- Validation of models against experimental test data.
- Parametric study on the effects of axial pressure ratio and eccentricity.
Main Results:
- The optimal axial pressure ratio for DPC joints ranges from 0.5 to 0.7.
- Increasing axial pressure generally decreases the ductility coefficient.
- Eccentricity has a minimal impact on the energy dissipation capacity of DPC joints.
Conclusions:
- The proposed DPC joint offers a viable solution for column-column dry connections, addressing current limitations.
- Axial pressure is a critical parameter influencing the seismic performance and ductility of DPC joints.
- The DPC joint design demonstrates potential for enhanced structural integrity and ease of disassembly.
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