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Interaction Effect Between RC Frames and Infilled Walls
The masonry-infilled reinforced concrete (RC) frame is a common architectural form in many countries around the world. Extensive studies have been conducted to investigate the differences between RC sole frames and masonry-infilled RC frames. Various models, such as equivalent strut models and finite element method-based models, have been proposed to simplify and analyze the seismic performance of a masonry-infilled RC frame. However, the frame-infill interaction effect has not been fully understood. In this paper, a three-dimensional rigid body spring model based on the discrete element method (DEM) was developed to simulate the seismic performance of a masonry-infilled RC frame, such as the lateral bearing capacity, initial stiffness, failure modes and load-displacement curves. Four models with different infilled walls, i.e., hollow clay bricks, concrete hollow blocks, ceramsite concrete blocks, and aerated concrete blocks, were verified by experimental findings from the literature. Stress of the springs between the concrete and masonry elements versus the lateral load was extracted to analyze the frame-infill interaction effect. Based on the analysis of the stress of different specimens, the strength of masonry mortars and the thickness of infilled walls might influence the frame-infill interaction.
Interaction Effect Between RC Frames and Infilled Walls
The masonry-infilled reinforced concrete (RC) frame is a common architectural form in many countries around the world. Extensive studies have been conducted to investigate the differences between RC sole frames and masonry-infilled RC frames. Various models, such as equivalent strut models and finite element method-based models, have been proposed to simplify and analyze the seismic performance of a masonry-infilled RC frame. However, the frame-infill interaction effect has not been fully understood. In this paper, a three-dimensional rigid body spring model based on the discrete element method (DEM) was developed to simulate the seismic performance of a masonry-infilled RC frame, such as the lateral bearing capacity, initial stiffness, failure modes and load-displacement curves. Four models with different infilled walls, i.e., hollow clay bricks, concrete hollow blocks, ceramsite concrete blocks, and aerated concrete blocks, were verified by experimental findings from the literature. Stress of the springs between the concrete and masonry elements versus the lateral load was extracted to analyze the frame-infill interaction effect. Based on the analysis of the stress of different specimens, the strength of masonry mortars and the thickness of infilled walls might influence the frame-infill interaction.
Interaction Effect Between RC Frames and Infilled Walls
Lecture Notes in Civil Engineering
Milani, Gabriele (editor) / Ghiassi, Bahman (editor) / Zhou, Tian (author) / Yu, Qian-Qian (author) / Gu, Xiang-Lin (author) / Zhang, Hong (author) / Jin, Xian-Yu (author)
International Brick and Block Masonry Conference ; 2024 ; Birmingham, United Kingdom
2024-12-13
11 pages
Article/Chapter (Book)
Electronic Resource
English
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