Hysteretic Behavior of Bolt Connections in Timber–Concrete Composite Bridges: Experimental and Numerical Research
Publication: Journal of Bridge Engineering
Volume 28, Issue 1
Abstract
The hysteretic behavior of bolt connections in a timber–concrete composite (TCC) bridge was investigated. Six identical TCC specimens were designed with bolted connections and subjected to reversed cyclic loading tests. The failure modes, energy dissipation capacity, stiffness degradation, strength degradation, and hysteretic responses of the specimens were evaluated. The experimental results indicate that the predominant failure mode was a dual-hinge mechanism in the bolts of the TCC specimens. The TCC specimens exhibited satisfactory energy dissipation and achieved a mean ductility factor of 6.76. A finite-element model was developed to simulate the cyclic response of the tested TCC specimens. The simulated data are in good agreement with the experimental data. The experimental and numerical results reported are useful for the development of design guidelines for TCC bridges with bolted connections.
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Acknowledgments
This research work was supported by State Forestry Administration Project 948 (Project No. 2014-4-51), the National Natural Science Foundation of China (Grant No. 51478485), the Natural Science Foundation of Hunan Province (Grant No. 2020JJ5618), the Scientific Research Project of Education Department of Hunan Province (Nos. 19C0169 and 19B054), and the Science Popularization Special Project on the Construction of Innovation-Oriented Provinces (No. 2021ZK4148), which are highly appreciated.
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Information & Authors
Information
Published In
Journal of Bridge Engineering
Volume 28 • Issue 1 • January 2023
Copyright
© 2022 American Society of Civil Engineers.
History
Received: Jul 20, 2021
Accepted: Aug 7, 2022
Published online: Oct 21, 2022
Published in print: Jan 1, 2023
Discussion open until: Mar 21, 2023
ASCE Technical Topics:
- Analysis (by type)
- Bolted connections
- Bridge engineering
- Bridges
- Bridges (by material)
- Building materials
- Chemical degradation
- Chemical processes
- Chemistry
- Composite bridges
- Connections (structural)
- Energy dissipation
- Engineering fundamentals
- Engineering materials (by type)
- Engineering mechanics
- Environmental engineering
- Load tests
- Materials engineering
- Numerical analysis
- Structural behavior
- Structural engineering
- Structural members
- Structural systems
- Tests (by type)
- Thermodynamics
- Wood and wood products
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