Finite-Element Modeling of Nonlinear Behavior of Masonry-Infilled RC Frames

Full-scale experimental study on masonry infilled RC moment-resisting frames under cyclic loads

“…Since the first attempt to model the response of the composite infilled frame structures, considerable researches have been conducted to develop rational analytical model for infilled frames [15][16][17][18][19][20][21]. A thorough overview of the mathematical macro-modeling and micro-modeling of infilled frames was presented by Asteris et al [22,23].…”

Mathematical micromodeling of infilled frames: State of the art

“…Koutromanos [110], Koutromanos et al [111] extended the work in Stavridis and Shing [174] by using a combined discrete and smeared crack approach to investigate the behavior of masonry-infilled, non-ductile RC frames subjected to lateral cyclic, static and earthquake loads. The main novelty in this research is the use of a newly developed cohesive crack interface model and an improved smeared-crack model to capture the cyclic behavior of such structures.…”

“…3 illustrates schematically the characteristics of the spring element. More accurate modeling of the interaction between the surrounding frame and the infill panel can be achieved by using interface elements, notably [77,101,62,122,165,104,145,13,14,174], as shown in Fig. 3.…”

“…Stavridis [173] and Stavridis and Shing [174] developed a modeling methodology that combines the smeared and discrete crack approaches to capture the different failure modes of infilled frames, including the mixed-mode fracture of mortar joints and the shear failure of RC members. They showed that the proposed modeling technique has the ability to predict the different failure modes as well as the load-displacement relationships of infilled RC frames.…”

Evaluation of the contribution of masonry infill panels on the seismic behaviour of two existing reinforced concrete buildings

“…Recently, with the evolution of the computational techniques, new micro-models based on the FEM are able to represent the global and local effects of the infill masonry panel in detail (Stavridis and Shing, 2010), requiring different types of elements to represent, respectively, the bricks, mortar, brick- However the level of information needed and the computational effort used for these models turn their application to real structures impracticable, leaving them useful for investigation purposes and calibration of more simplified models.…”