ANALYZING RCC FRAME STRUCTURE WITH AND WITHOUT STRUTS AND SHEAR WALLS

Abstract

This paper presents the comparison between the building with and without shear wall and struts. High-rise buildings are more complex in design and differ from low-rise buildings. Lateral stiffness is critical in the mechanism of resistance of multi-storey frames. Simple RCC frame structure comprises of only beams and columns which sometimes in high-rise building are not enough to fulfill the strength criteria unless they are provided with large cross-sections. But providing large cross-section of beams and columns is also not feasible. Therefore, additional members (shear walls, struts etc) to support the structure become essential. Therefore, in order to rectify this concept, G+19 storey building was designed in STAAD.Pro. Response spectrum method (zone-IV as per IS: 1893-2016) was used for seismic analysis. Different structural parameters were recorded from the results of STAAD.Pro and then comparative cost analysis was done. Results for G+19 building show that the maximum displacement in Type A, Type B and Type C is 209.80 mm, 93.73 mm and 81.68 mm respectively. Therefore, displacement in Type C building is minimum.Total cost of Type A, Type B and Type C works out to be Rs 413.28 lakhs, Rs 362.40 lakhs and Rs 421.42 lakhs respectively. Therefore, for G+19 building, Type B is the optimum building as it involves minimum total cost of building and it is found economical and safe.