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Hysteretic model of shear walls built with high‐strength reinforcement
The seismic performance of shear walls reinforced with high‐strength bars has been experimentally studied in depth; however, limited analytical research exists on such walls. As part of this study, two shear walls reinforced with Grade HRB 600 bars and subjected to different axial load ratios (0.1 and 0.2) were tested under cyclic loading to study their hysteretic performance. As part of the analytical investigation, a method to model the hysteretic response of shear walls built with high‐strength bars is proposed, consisting of a skeleton curve and a set of empirical hysteretic rules. The skeleton curve consists of a simplified quadrilinear model, represented by points at cracking, yield, peak, and ultimate. The empirical hysteretic rules are based on the Park hysteretic model. The experimental test data in this paper were used to validate the accuracy of the proposed analytical method. The results show that the analytical lateral force‐displacement hysteretic curves are in reasonable agreement with the experimental curves, especially in terms of the loading and unloading stiffnesses and pinching behavior.
Hysteretic model of shear walls built with high‐strength reinforcement
The seismic performance of shear walls reinforced with high‐strength bars has been experimentally studied in depth; however, limited analytical research exists on such walls. As part of this study, two shear walls reinforced with Grade HRB 600 bars and subjected to different axial load ratios (0.1 and 0.2) were tested under cyclic loading to study their hysteretic performance. As part of the analytical investigation, a method to model the hysteretic response of shear walls built with high‐strength bars is proposed, consisting of a skeleton curve and a set of empirical hysteretic rules. The skeleton curve consists of a simplified quadrilinear model, represented by points at cracking, yield, peak, and ultimate. The empirical hysteretic rules are based on the Park hysteretic model. The experimental test data in this paper were used to validate the accuracy of the proposed analytical method. The results show that the analytical lateral force‐displacement hysteretic curves are in reasonable agreement with the experimental curves, especially in terms of the loading and unloading stiffnesses and pinching behavior.
Hysteretic model of shear walls built with high‐strength reinforcement
Ni, Xiangyong (author) / Cao, Shuangyin (author) / Hou, Yonghui (author)
Structural Concrete ; 22 ; 1378-1395
2021-06-01
18 pages
Article (Journal)
Electronic Resource
English
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