Abstract: A finite element (FE) model was established for full-scale frame infill walls strengthened by high ductile concrete (HDC) with horizontal joints in this work. Based on the good agreement with the results of the pseudo-static test, this study further analyzed the effect of horizontal joint numbers on the out-of-plane behavior, and the out-of-plane behavior after in-plane damage of frame infill walls. The results show that horizontal joints can significantly improve the deformability and energy dissipation capacity of frame infill walls. Increasing the number of horizontal joints can reduce the interaction between the wall and the frame, resulting in an enhancement on the seismic performance of the frame infill wall. When the inter-storey drift reaches 1.67% (serious in-plane damage), the out-of-plane load carrying capacity and stiffness of the HDC-strengthened specimen with three horizontal joints are improved by 75% and 114%, respectively, compared with strengthened specimen without horizontal joints. Besides, the stiffness degradation of the specimen is slowed down, showing good elastic-plastic deformability. Overall, the horizontal joints dissipate energy through friction, thus the proposed strengthening technique effectively weakens the adverse effect of in-plane damage and improves the out-of-plane load carrying capacity of frame infill walls.
李彤, 鲁鑫东, 邓明科. 带水平缝高延性混凝土面层加固足尺框架填充墙抗震性能有限元分析[J]. 材料导报, 2026, 40(13): 25060072-7.
LI Tong, LU Xindong, DENG Mingke. Numerical Study on Seismic Performance of Full-scale Frame Infill Walls Strengthened Using High Ductile Concrete Overlay with Horizontal Joints. Materials Reports, 2026, 40(13): 25060072-7.
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2026, Vol. 40 
