Seismic Behavior of Precast Bridge Column–Cap Beam Joints with Grouted Corrugated Duct Connections: Experimental and Numerical Study
Publication: Journal of Bridge Engineering
Volume 28, Issue 3
Abstract
This paper presented an assembly scheme that was based on bundled bars–grouted corrugated duct connections. The scheme was used for the connection between the bridge column with bundled bars and the cap beam in an elevated subway station. Two 1/3-scale bridge column–cap beam joint specimens were designed and fabricated to verify the scheme. The test specimens included a precast assembly specimen and a cast-in-place (CIP) specimen. Pseudostatic cyclic loading tests were performed to investigate the flexural capacity, failure mode, and hysteretic behavior of the CIP and precast assembly specimens. The test results showed that: (1) the flexural capacity of the precast assembly specimen was close to that of the CIP specimen; (2) the energy dissipation capacity of the precast assembly specimen was weaker compared with that of the CIP specimen; and (3) the assembly scheme that was based on bundled bars–grouted corrugated duct connections was reliable. Finally, the finite-element model for the test specimens was established by calling the PQ-FIBER user subroutine developed by Tsinghua University with ABAQUS to study the seismic performance of the test specimens. Compared with the test results, the finite-element models could simulate the failure mode and hysteretic behavior of the reinforced-concrete specimens.
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Acknowledgments
This research was supported by the Natural Science Foundation of China (Grant No. 51578444), and the Key Science Research Program of Education Department of Shaanxi Province (20JY032).
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© 2022 American Society of Civil Engineers.
History
Received: Apr 6, 2022
Accepted: Oct 1, 2022
Published online: Dec 22, 2022
Published in print: Mar 1, 2023
Discussion open until: May 22, 2023
ASCE Technical Topics:
- Architectural engineering
- Beam columns
- Bridge columns
- Bridge components
- Bridge engineering
- Building systems
- Columns
- Duct
- Engineering fundamentals
- Finite element method
- HVAC
- Joints
- Load tests
- Methodology (by type)
- Numerical methods
- Seismic tests
- Structural engineering
- Structural members
- Structural systems
- Tests (by type)
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