Opening Area Effect of Core Type Shear Wall in Hospital Building with Highest Importance Factor

Multi-storey buildings have fascinated mankind from the beginning of civilization, their construction being initially for defence and subsequently for ecclesiastical purposes. These tall buildings because of its height, is affected by lateral forces due to wind or earthquake actions tends to snap the building in shear and push it over in bending. In general, the rigidity (i.e. Resistance to lateral deflection) and stability (i.e. Resistance to overturning moments) requirement become more important. Shear walls (Structural walls) contribute significant lateral stiffness, strength, and overall ductility and energy dissipation capacity. In many structural walls a regular pattern of openings has to be provided due to various functional requirements such as to accommodate doors, windows and service ducts. Such type of openings reduces the stiffness of the shear wall to some extent depending on the shape and size of the opening. In the present parametric study, efforts are made to investigate and critically assess the effects of various size of openings in shear walls on the responses and behaviours of multi-storey buildings also Opening Area Effect of Core Type Shear Wall In Hospital Building with Highest Importance Factor. Many G+20 storey prototype buildings with different types of openings in shear wall with and without incorporating the volume of shear wall reduced in the boundary elements are analysed using software Staad-Pro using Response spectrum method (1893-2016). Overall analysis shows that the most efficient case for this study has been HIF5. The hospital building can be survived with highest importance with the value of I = 1.5 as per IS 1893:2016 for opening area effect of core type shear wall. It can also be recommended that upto 25% opening will be possible without any seismic damage. Keywords: Shear wall, Opening Criteria, Highest Importance Factor, Multi-storey Hospital Building