in: Earthquake Resistant Engineering Structures IX, Brebbia,Hernandez, Editor, WIT Press , Southampton, pp.121-131, 2013
The effect of infill walls to stiffness of the structures has been known for a long
time and this effect has taken many of the earthquake regulations with empirical
relationships and equations into account. However, in strength-based
calculations, buildings are taken as bare frames and infill walls are effected as
vertical load to system, whereas infill walls contribute to stiffness at the
beginning of the earthquake and help meet seismic loads by incurring damage
during an earthquake.
In this study, contribution of infill walls to stiffness of the structure was
analyzed in reinforced concrete framed and load-bearing buildings. Also, the
effect of openings in the infill walls to stiffness was examined.