NUMERICAL MODELING OF PERFORATED INFILL WALLS IN RC FRAME STRUCTURES
Keywords:
Numerical modeling, Brick masonry, Link, Diagonal strut, PushoverAbstract
Usually the masonry Infill walls are not considered in the design of the structures, but
during lateral loads it affect the structural performance significantly. Experiences from the past
earthquakes studies have shown the undesired damage in structures, like soft story mechanism,
torsional failure and short column phenomena. Due to these complexities, and seismic evaluation
performance, numerical modeling becomes necessary. However for numerical simulation of these
infill walls, different modeling techniques can be used. The infill walls are modeled as a diagonal
strut element and as a link element. Both of the models were analyzed in SAP2000, and obtained
the Pushover/ backbone curve. The strut element results are compared with the compression link
element modeling approach, and this was observed that these results were very closely coinciding
in terms of base shear- roof displacement curve at each story level.