Study of Masonry Infill Wall Behaviors in RC Frame under Tsunami Loading using the Finite Element Method
Keywords:
Tsunami, Masonry-infilled wall in RC frame, Finite element methodAbstract
This research aims to analyze the behavior of a masonry-infilled wall (MIW) in a reinforced concrete frame (RC) subjected to tsunami force using the Finite Element Method. This work used experimental data from past research for calibration and model to investigate the response behavior under the tsunami loading, distributed uniformly through the water depth. The analysis evaluated the effects of various tsunami inundation depths on the lateral resistance capacity of RC frames with MIWs. The MIW behaviors were modeled using subsections of 25x25 square elements. The analysis results found that the lateral resistance of the building decreased about 2 times as the inundation depth increased, from 780 kN to 320 kN for the inundation depth of 0.250H and 1.000H, respectively. Because the force is transferred to the foundation directly at shallower tsunami inundation depths, a larger force was required to push the MIW. This study emphasizes the significance of including the analysis of structures' response to tsunami loading in the design of coastal structures, aiming to improve safety and mitigate risks associated with natural disasters.
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