Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Effect of Infills with Realistic Openings on the Seismic Performance of Gravity Load-Designed RC Buildings
Unreinforced Masonry Infills (URM) are essential part of Reinforced Concrete (RC) buildings, serve as external claddings and internal partition walls. These infills are often ignored in structural analysis, considered as non-structural elements as they don’t take part in sustaining gravity loads acting on the building. However, infills do take part under lateral loading due to earthquake, and imparts significant lateral strength and stiffness to the building even with realistic openings for doors and windows, thereby ignoring infills in structural assessment lead to inaccurate conclusions. Gravity Load Designed (GLD) buildings are still existing in India, even in high seismic zones, and need realistic performance assessment in order to mitigate their collapse, and formulating strengthening measures for these buildings. In the present study, effect of infills on the seismic response of gravity Load Designed mid-rise (4-story) buildings have been examined through nonlinear static analysis. It is observed that ignoring infills in the structural analysis predicts ductile behavior of GLD building, which contradicts after simulation of infills considering realistic openings due to doors and windows. The shear force demand in columns that gets enhanced due to lateral action of infill strut exceeds shear capacity of non-seismically designed RC columns resulting brittle failure of columns. GLD buildings may undergo collapse in higher seismic zones but can sustain in lower seismic zones depicting reasonable seismic performance.
Effect of Infills with Realistic Openings on the Seismic Performance of Gravity Load-Designed RC Buildings
Unreinforced Masonry Infills (URM) are essential part of Reinforced Concrete (RC) buildings, serve as external claddings and internal partition walls. These infills are often ignored in structural analysis, considered as non-structural elements as they don’t take part in sustaining gravity loads acting on the building. However, infills do take part under lateral loading due to earthquake, and imparts significant lateral strength and stiffness to the building even with realistic openings for doors and windows, thereby ignoring infills in structural assessment lead to inaccurate conclusions. Gravity Load Designed (GLD) buildings are still existing in India, even in high seismic zones, and need realistic performance assessment in order to mitigate their collapse, and formulating strengthening measures for these buildings. In the present study, effect of infills on the seismic response of gravity Load Designed mid-rise (4-story) buildings have been examined through nonlinear static analysis. It is observed that ignoring infills in the structural analysis predicts ductile behavior of GLD building, which contradicts after simulation of infills considering realistic openings due to doors and windows. The shear force demand in columns that gets enhanced due to lateral action of infill strut exceeds shear capacity of non-seismically designed RC columns resulting brittle failure of columns. GLD buildings may undergo collapse in higher seismic zones but can sustain in lower seismic zones depicting reasonable seismic performance.
Effect of Infills with Realistic Openings on the Seismic Performance of Gravity Load-Designed RC Buildings
Lecture Notes in Civil Engineering
Jayalekshmi, B. R. (Herausgeber:in) / Rao, K. S. Nanjunda (Herausgeber:in) / Pavan, G. S. (Herausgeber:in) / Kurmi, P. L. (Autor:in) / Kumar, Neeraj (Autor:in) / Telang, Deepa (Autor:in)
International Conference on Sustainable Infrastructure: Innovation, Opportunities and Challenges ; 2023 ; Mangalore, India
20.09.2024
9 pages
Aufsatz/Kapitel (Buch)
Elektronische Ressource
Englisch
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