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A Macro Model for Analyzing Reinforced Concrete Frames with Masonry Infill Walls, Including Openings
This paper presents the development of a macro model for simulating the behaviour of concrete masonry infilled reinforced concrete (RC) frames under lateral loading. With the objective of capturing the global behaviour of the infilled system, the model employed four compressive struts configured in a serial manner with a shear spring at the centre of the infill. The struts, oriented in the general diagonal direction of the infill, were modeled to capture the compressive behaviour of the infill. The struts were connected to the frame at discrete points to take into account the bending and shear effect of the infill exerted on the frame. The shear spring was intended to represent the shear behaviour of the infill. The model also considered the infill opening effect by incorporating opening reduction factors to the strut and shear spring models. Encoded in OpenSees, the model was verified against the experimental results of masonry infilled RC frames subjected to static and cyclic loading. The results demonstrated that the proposed model effectively simulated the behaviour of infilled RC frames under both loading conditions. The use of opening reduction factors with a macro model provided a reasonable approach when evaluating behaviour and capacity of infilled frames with openings.
A Macro Model for Analyzing Reinforced Concrete Frames with Masonry Infill Walls, Including Openings
This paper presents the development of a macro model for simulating the behaviour of concrete masonry infilled reinforced concrete (RC) frames under lateral loading. With the objective of capturing the global behaviour of the infilled system, the model employed four compressive struts configured in a serial manner with a shear spring at the centre of the infill. The struts, oriented in the general diagonal direction of the infill, were modeled to capture the compressive behaviour of the infill. The struts were connected to the frame at discrete points to take into account the bending and shear effect of the infill exerted on the frame. The shear spring was intended to represent the shear behaviour of the infill. The model also considered the infill opening effect by incorporating opening reduction factors to the strut and shear spring models. Encoded in OpenSees, the model was verified against the experimental results of masonry infilled RC frames subjected to static and cyclic loading. The results demonstrated that the proposed model effectively simulated the behaviour of infilled RC frames under both loading conditions. The use of opening reduction factors with a macro model provided a reasonable approach when evaluating behaviour and capacity of infilled frames with openings.
A Macro Model for Analyzing Reinforced Concrete Frames with Masonry Infill Walls, Including Openings
Lecture Notes in Civil Engineering
Milani, Gabriele (editor) / Ghiassi, Bahman (editor) / Maymandi, Nima (author) / Liu, Yi (author)
International Brick and Block Masonry Conference ; 2024 ; Birmingham, United Kingdom
2024-12-13
14 pages
Article/Chapter (Book)
Electronic Resource
English
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