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Abstract:
The failure of steel and cross-laminated timber (CLT) hybrid structures is primarily focused on the joint area of the CLT panel. To reduce the joint damage of CLT panels during an earthquake, a prefabricated annular dissipative connector formed by double U-shaped dampers is proposed for steel-CLT hybrid structures. The design realizes the controllable failure modes and predictable mechanical performance of the connection joints, as well as the ability to replace the joints after their failure. Cyclic tensile tests were performed to investigate the failure mode, hysteretic performance, and energy dissipation and deformation characteristics of the connectors subjected to tension. The effects of different design parameters, including the varied thickness and width of the U-shaped flexural plate (UFP), on the tensile strength capacity, stiffness degradation, and energy dissipation are compared and analyzed. A detailed finite element (FE) model is developed to simulate the tensile behavior of the connection, and the prediction results are found to exhibit good agreement with the experimental results. The anchoring strength of the connector subjected to tension is further analytically predicted. Moreover, a formula for tensile plastic deformation is proposed, and provides good theoretical predictions of the tensile strength of the annular dissipative connector during the intermediate plastic development stage. © 2024
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Structures
Year: 2024
Volume: 69
4 . 1 0 0
JCR@2022
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ESI Highly Cited Papers on the List: 0 Unfold All
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30 Days PV: 8
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