INFLUENCE OF OPTIMAL COLUMN SPACING FOR G+11 STOREY RC MOMENT RESISTING FRAME

Objective: To analyze a safe G+11 commercial by obtain the ideal space parameters of varied columns. Method of analysis: The following work is limited to plot frames of 50m X 50m (with aspect ratio of panel sizes varying from 1 to 4) for the first case and for second case the size of the panel are 50m x 50m, 50m x 30m, 50m x 25m and 50m x 20m (with an aspect ratio of 1, 0.6, 0.5, and 0.4 respectively). The structure is modeled, analyzed for gravity and lateral (seismic) loads then designed as per IS: 456-2000 and analyzed in STAAD. Pro. Failed members are again modulated until all the members are safe. By observations and calculations, the most economical panel size is suggested and its spacing is noted. Findings: According to aspect ratio which panel shows more story drift and which is having more self-weighted respectively which leads to economical column spacing design further. Applications: The database is prepared for worst load combination and the structural elements are designs for the worst load.