A comparative study on RCC structures (frame, infill, bracings, wire frame and shear wall)

Abstract

The RCC structure is popular in the modern era because of the various benefits it has got to offer. There is a need to study the behaviour of RCC structures. In the present study, multi-storey building of G+9 structure situated in a high seismic area is analysed for gravity and lateral loads. The following six models are analysed. Model-1: Frame structure, Model-2: Infill, Model-3: X-Bracings, Model-4: Diagonal Bracings, Model-5: Introducing Shear wall at corners, Model-6: Wire Frame. A typical G+9 structure is analysed and designed (only columns) as per IS codes. The structure is analysed for gravity and earthquake load. Earthquake load is carried out by equivalent static analysis and response spectrum method (RSM). Models are analysed using ETABS 16:2:1. The analytical model of the structures includes all the important components that influence mass, strength, stiffness and deformation of the structure. After the analysis, the design of columns is carried out for all the models to check the steel quantity requirement for the structural member. The results obtained from analysis are plotted to compare the behaviour of RCC structures for the models that are analysed in the present study. The aim is to study the behaviour of structure like base shear, displacement, storey drift, natural time period and frequency and mode shapes. The design is done for columns, for every storey, the steel requirement is calculated for all the six models for comparative study. The cost comparison is made from the economy point of view.