Abstract

Steel plate reinforced concrete composite shear wall (SPRCW), known for its commendable seismic performance, fire resistance, and durability, is commonly available in straight, L-shaped, and T-shaped configurations. However, current research inadequately addresses the horizontal bearing capacity of special-shaped walls. Therefore, this paper focuses on the T-shaped SPRCW as the subject of investigation. And a refined Abaqus finite element model was established, based on five T-shaped SPRCW specimens subjected to cyclic loading tests. This study explores the key parameters affecting the horizontal bearing capacity of T-shaped SPRCW, encompassing shear span ratio, concrete and steel strength, axial compression ratio, steel content in the wall body, and steel content in the boundary element at the web end. The steel form within the boundary element at the junction of the web and flange is then optimized for economic efficiency and bearing capacity. In conclusion, this study introduces a formula based on the plastic hinge position to calculate the bending bearing capacity of T-shaped SPRCW. The proposed formula's validity is supported by comparisons with both test and finite element results, providing valuable insights for engineering applications.

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