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• W4381480453 abstract "In this paper, an innovative tooth groove and reserved hole concentrated reinforcement connection method was proposed, and its configuration and joint assembly process were elaborated in detail. Based on the similarity theory, a 1/2 scale fully assembled precast shear wall substructure was designed and manufactured. The failure mode, dynamic characteristics, acceleration response, displacement response, seismic action response, inter-storey shear response and strain response of the fully assembled precast concrete shear wall substructure with tooth groove and reserved hole concentrated reinforcement connection under the different earthquake excitations were comprehensively analyzed by shaking table test, and the joint connection performance and overall seismic performance of the substructure in high intensity areas were investigated. The research results showed that the typical crack morphology of substructure was that cracks developed and extended at the horizontal joints at the bottom, while there was no obvious damage in other parts. Overall, the integrity of precast concrete shear wall substructure was well maintained and the tooth groove and reserved hole concentrated reinforcement connection was reliable. Besides, under the stepwise excitations of peak ground acceleration (PGA), the natural frequency of the substructure decreased by 18.8%, and the damping ratio increased by 23.2%. And the acceleration amplification coefficient, storey displacement, seismic action increased with the height of the substructure. However, the response distributions under the action of Chi-Chi wave, Imperial Valley wave and RG wave were various due to the different spectral characteristics, and the response under Imperial Valley wave was the most significant. In addition, when the excitation of PGA = 0.638g, the maximum inter-storey drift of substructure was 1/213, which was in line with the plastic limit of 1/120. Finally, a comprehensive seismic performance evaluation method suitable for fully assembled precast concrete shear wall substructure with tooth groove and reserved hole concentrated reinforcement connection was proposed with inter-storey drift and damage index as quantitative indicators." @default.
• W4381480453 created "2023-06-22" @default.
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• W4381480453 date "2023-06-01" @default.
• W4381480453 modified "2023-09-29" @default.
• W4381480453 title "Shaking table test of fully assembled precast concrete shear wall substructure with tooth groove and reserved hole concentrated reinforcement connection" @default.
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• W4381480453 doi "https://doi.org/10.1016/j.jobe.2023.107151" @default.
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