AN EVALUATION OF THE SEISMIC AND WIND PERFORMANCE OF A G+9 REINFORCED CONCRETE STRUCTURE WITH AND WITHOUT SHEAR WALLS UTILIZING STAAD PLUS

Abstract

Designing high-rise reinforced concrete (RC) structures with adequate lateral stability is essential, especially in areas prone to earthquakes and strong winds. A G+9 RC framed structure was examined in this research with and without shear walls, utilizing STAAD as a tool for comparison.The PRO CONNECT Version. Model A is a standard reinforced concrete momentresisting frame, while Model B is an improved version of Model A with three shear wall components positioned in the middle to increase lateral stiffness. For Seismic Zone II circumstances, both models were tested under dead load, live load, wind load, and seismic load according to IS 1893 (Part 1):2016. Displacements at nodes, forms deflected, stress distribution on plates, and bending moment behavior of frame elements were used to assess the structural reaction. Through altering the distribution of seismic and wind forces and minimizing horizontal displacements, the comparison study demonstrated that the addition of shear walls substantially increased the building's lateral stiffness. When compared to the bare frame model, the shear wall system lowered the bending moments in the columns by absorbing most of the lateral load. A lack of change in the gravity load response, including vertical displacement and slab stress behavior, suggests that shear walls mainly affected lateral performance and had no negative effect on gravity load behavior. The research shows that medium-rise RC structures with shear walls have better drift control, lower member demands, and better structural performance overall, and that they resist lateral loads efficiently. Buildings vulnerable to seismic and wind forces should use wall-frame dual systems, according to the results.