Dynamic Analysis of High Rise RC Frames with Floating Columns and Steel Bracings

Starting late, multi-story structures in urban territories are required to have segment free space as a result of absence of space, people and moreover for classy and functional necessities. These skimming fragments are exceptionally disadvantageous in building worked in seismically dynamic regions. The tremor constrains that are made at different floor levels in a building ought to be passed on down along the stature to the ground by the most concise way. Deviation or brokenness in this store move route achieves poor execution of the building. The present work includes the analysis of high rise reinforced concrete structure with floating columns. To provide the additional stiffness and stability, steel X – type bracings are incorporated and earthquake analysis is carried out. In the present study a 40 storied RCC building is considered, having overall plan dimension of 35 m x 35 m along X and Y direction. RCC structure is with floating columns are modelled. To study the effect of overall performance of the structure, steel X bracings are provided. To study the effect of overall performance of the structure, steel X bracings are provided. X bracings at different location at different heights are considered. Total five models are considered one regular RCC structure, second RCC structure with floating columns and three types of bracing systems. Equivalent static and dynamic time history analysis is carried out using ETAB Ver. 2015. Important results like displacements, story drifts, peak displacements, base force and acceleration are presented. Based on the results the best steel bracing type for RCC buildings with floating columns is suggested.