International Research Journal of Engineering and Technology (IRJET)
e-ISSN: 2395-0056
Volume: 10 Issue: 05 | May 2023
p-ISSN: 2395-0072
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Comparative study on performance of RC multi-storey structure with shear wall and steel bracing subjected to seismic load Sachin V1, Adarsh M2, Ashwitha M3, Chandana C4, Megha S Mahaladkar5 1,2,3,4B.E. Students, Department of Civil Engineering, Vidya Vikas Institute of Engineering And Technology,
Karnataka, India
5Asst. Students, Department of Civil Engineering, Vidya Vikas Institute of Engineering And Technology,
Karnataka, India ---------------------------------------------------------------------***---------------------------------------------------------------------
Abstract - The seismic performance of multi-storey
horizontal loads at the same time. The goal of the current work is to analyze and examine the performance of RC shear walls in medium-rise buildings. In bare frame buildings, reinforced concrete shear walls are utilized to withstand lateral forces brought on by wind and earthquake.
buildings is a critical consideration for structural engineers, especially in earthquake-prone regions. Shear walls and steel bracings are two common methods used to enhance the seismic resistance of reinforced concrete (RC) multi-storey buildings. In this study, we compared the seismic performance of RC multi-storey buildings with shear walls and steel bracings. Our findings showed that both shear walls and steel bracings can effectively enhance the seismic performance of RC multi-storey buildings. This study provides valuable insights into the design and construction of RC multi-storey buildings under seismic loads and can assist structural engineers in selecting the most appropriate seismic-resistant method for their specific projects
1.2 STEEL BRACING One of the technique that the building uses to withstand lateral forces is a bracing system. By improving the lateral stiffness and capacity of the frame, the bracing system enhances the seismic performance of the structure. By flowing through the weak columns, weight might be transmitted from the frame and into the bracing system. The bracing system's enhanced rigidity is maintained virtually to peak strength.
Key Words: ETAB, Seismic analysis, Bracings, Shear wall, IS 1893(part I):2002, IS 1893(part I):2016, IS 16700:2017.
One or more of the following functions are performed by bracings:
1.INTRODUCTION
Control buckling. Load distribution. Dimensional control.
Earth quake is a natural disaster that causes violent earth motions that have an impact on buildings. Due to the construction of new metropolitan populations near seismically active areas, socioeconomic disasters have spread throughout the world. Structures must have enough lateral stability, strength, and ductility to ensure the safety of the buildings. To safely withstand the significant lateral stresses that are applied to structures during frequent earthquakes, structures must have appropriate earthquake resistant features. These lateral forces have the potential to cause a structure to experience critical stresses, unpleasant vibrations, and lateral sway—all of which could create discomfort for the inhabitants. To improve the lateral stiffness, ductility, minimal lateral displacements, and safety of the structure, shear walls and bracings are placed. When designing structures for earthquakes, storey drift and lateral displacements are crucial considerations.
2. METHODOLOGY It is a piece of engineering software that handles the study and design of multistory buildings. ETABS can be used to analyze simple or complex systems under static or dynamic conditions. Modal and direct-integration time history analyses may be coupled with P-Delta and large displacement effects for a sophisticated evaluation of seismic performance. ETABS is a coordinated and effective tool for designs ranging from straightforward 2D frames to intricate modern highrises because to its interoperability with a number of design and documentation platforms.
2.2 MODEL DESCRIPTION
1.1 SHEAR WALL
Number of storey = (G+8) storey Plan dimension = 17m×17m X and Y direction = 5 bays, 3 bays spaced 3m and other 2 spaced 4m Bottom storey height =3.5m Typical storey height =3m
One of the most widely used lateral load resisting components in high rise buildings is the shear wall. High in plane stiffness and strength, shear walls (SW) can be employed to support gravity loads and resist heavy
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