Analytical Investigation of Infilled Frames with Openings Under Static Loading

Abstract

AbstractThe structural Reinforced Concrete (RC) Frames with brick masonry infill are extensively utilized in numerous structures. The infill walls interact with the surrounding frames, absorb energy, modify the internal force distribution and contribute to the globe load resistance and increase the structural performance. Besides, openings in infill panels such as windows and doors play an essential role in infill frames and change the behavior of the panel which depends on several criteria known as size and position of the opening. In this study, five numbers of single-bay, single-story reinforced concrete frames prototype frames were analyzed under static loading. The behavior of the RC bare frame, RC infill frame and RC infill frame with different opening such as doors and windows were used for analysis. The objective of this research work is to study the behavior of the infilled frame with different openings when cement mortar interface material is used under static loading through numerical analysis. It is found that the infills with openings improve the performance of RC frames. A comparative study with infilled frames with openings under interface material and bare frame under static loading with varying parameters based on the obtained results such as displacement, stiffness, bending moment, lateral load was observed and to study the critical infill opening is also found.KeywordsInfilled framesFinite element methodCement mortarOpeningsStiffness