Seismic Response Analysis of RC Frame-Shear Wall Structure with Specially Shaped Columns

News that RC frame-shear wall structure with specially shaped columns in service were severely torsional deformed and even collapsed are always reported, which is largely caused by the disadvantage layout of shear-walls. The layout of shear-walls of an actual structure of this type had been adjusted, and then methods of modal analysis and time-history analysis were used to study the seismic responses of two different layouts of RC frame-shear walls with specially shaped columns. After analysis, it is found that the seismic behavior of the adjusted model has improved obviously when having slightly variations of shear value at the bottom of structure. The maximum story displacement and natural period are reduced most apparently by 14.4% and 4.34%.