Multi-Spring Model and Pushover Analysis of Masonry-Infilled Wall in RC Frame Under Tsunami Loading
Issued Date
2025-09-01
Resource Type
ISSN
26766957
eISSN
24763055
Scopus ID
2-s2.0-105022089049
Journal Title
Civil Engineering Journal Iran
Volume
11
Issue
9
Start Page
3782
End Page
3797
Rights Holder(s)
SCOPUS
Bibliographic Citation
Civil Engineering Journal Iran Vol.11 No.9 (2025) , 3782-3797
Suggested Citation
Foytong P., Thanasisathit N., Ornthammarath T., Tirapat S., Prasomsri J., Nanongtum A., Ruangrassamee A., Chindaprasirt P. Multi-Spring Model and Pushover Analysis of Masonry-Infilled Wall in RC Frame Under Tsunami Loading. Civil Engineering Journal Iran Vol.11 No.9 (2025) , 3782-3797. 3797. doi:10.28991/CEJ-2025-011-09-013 Retrieved from: https://repository.li.mahidol.ac.th/handle/123456789/113217
Title
Multi-Spring Model and Pushover Analysis of Masonry-Infilled Wall in RC Frame Under Tsunami Loading
Corresponding Author(s)
Other Contributor(s)
Abstract
This study investigated the behavior of masonry-infilled walls (MIWs) within reinforced concrete (RC) frames when exposed to hydrodynamic forces from tsunamis by employing a multi-spring modeling approach across different inundation levels. The proposed analytical model divided the MIW into 1 to 5 horizontal nonlinear spring elements that were allocated along the wall's height. Each spring represented a segment of MIW and was defined by a tri-linear force– displacement relationship. The model was calibrated with the experimental data from previous studies and was analyzed using pushover assessment under uniformly distributed hydrodynamic forces corresponding to four tsunami inundation levels (0.25H, 0.50H, 0.75H, and 1.00H). The models, which had employed four or five horizontal springs, had most effectively replicated MIW behavior under tsunami loading at all inundation depths. Conversely, single-spring models tend to overestimate lateral resistance by up to 50%, particularly when the frame is only partially submerged. This discrepancy arises because less force is transmitted through the MIW, with a greater amount of it being transferred directly to the foundation. The utilization of several spring elements provided a realistic load path, improved the interaction between the frame and MIW characterization, and optimized the precision in simulating lateral resistance and post-peak behavior.