Seismic performance of flanged RC walls under biaxial cyclic loading

Article Engineering, Civil

Cyclic Tests on T-shaped Concrete Walls Built with High-strength Reinforcement

Xiangyong Ni et al.

Summary: The study found that T-shaped concrete walls loaded at 45 degrees direction exhibit weaker performance under cyclic loading, but the tensile strength of HRB 600MPa reinforcement can be fully utilized in these walls.

JOURNAL OF EARTHQUAKE ENGINEERING (2022)

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Article Engineering, Civil

Effects of biaxial loading path on seismic behavior of T-shaped RC walls

Bin Wang et al.

Summary: This study investigated the seismic behavior and coupling mechanism of T-shaped walls subjected to different magnitudes of loading in two orthogonal directions. The test results showed that loading in one direction significantly affected the mechanical behavior in the orthogonal direction. Biaxial loading aggravated cracking and damage of the flange, reducing its ability to resist vertical loads. The biaxial coupling effect was found to be proportional to the area enclosed by the loading path.

ENGINEERING STRUCTURES (2022)

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Article Engineering, Civil

Hysteretic behavior of T-shaped walls reinforced by high-strength bars: Cyclic loading tests and modelling

Xiangyong Ni

Summary: Research on the seismic and hysteretic performance of T-shaped shear walls reinforced with high-strength bars is limited compared to rectangular shear walls. Testing showed that failure in T-shaped walls is related to concrete crushing at the free end of the web, with larger hysteretic loop areas in the positive loading direction. Additionally, the axial load ratio was found to increase the strength, stiffness, and energy dissipation of such walls. The proposed analytical method, based on a quadrilinear backbone curve and empirical hysteretic rules, provided reasonable agreement with experimental results in terms of stiffness and behavior.

STRUCTURES (2021)

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Article Engineering, Civil