International Research Journal of Engineering and Technology (IRJET)
e-ISSN: 2395-0056
Volume: 12 Issue: 02 | Feb 2025
p-ISSN: 2395-0072
www.irjet.net
A COMPARATIVE STUDY ON ANALYSIS OF RCC FRAMED G+9 BUILDING STRUCTURE USING FLUID VISCOUS DAMPER AND FRICTION DAMPER Chandan Sah 1 1 Department of Civil Engineering, Hindustan Institute of Technology and Science, Padur, Chennai, India
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Abstract - This study investigates the seismic performance
frictional resistance within the structural framework, friction dampers bolster the building's stiffness and resilience, thereby augmenting its ability to withstand seismic loads. [8,9] On the other hand, fluid viscous dampers leverage the viscous properties of fluids to absorb and dissipate energy, offering a versatile solution for damping structural vibrations across a wide spectrum of frequencies. The inherent characteristics of fluid viscous dampers make them adept at mitigating both low and high-amplitude vibrations, thereby providing comprehensive protection against seismic hazards. [10,11]
of an RCC framed G+9 building structure, focusing on the use of fluid viscous dampers and friction dampers to enhance resilience and reduce vibrations caused by ground motion. The building's architectural and structural design was developed using AutoCAD, with manual design calculations and modeling performed in ETABS software. Various load scenarios, including live, dead, wind, and seismic loads, were considered to evaluate the effectiveness of both damper types. Key findings reveal that both damping systems significantly improved the building’s performance compared to the undamped configuration. Friction dampers demonstrated superior results, particularly in stiffness enhancement, showing an average improvement of 48% and reducing maximum story displacements by 3% in the X-direction and 5% in the Y-direction. Fluid viscous dampers also performed well, especially in minimizing story drifts in the Y-direction, achieving a 0.5% improvement in both X and Y directions. A comparative analysis highlights that friction dampers excelled in stiffness control, while fluid viscous dampers were more effective in vibration reduction. The study concludes that incorporating damping systems is crucial for improving the safety and resilience of RCC structures in seismic-prone areas, offering valuable insights for better decision-making in structural design and implementation.
Central to the study's methodology is the utilization of ETABS software, a robust structural analysis and design tool renowned for its capability to simulate complex structural behaviors under various loading conditions. Through meticulous architectural and structural design, coupled with rigorous manual calculations and modeling within the ETABS environment, the study aims to comprehensively evaluate the seismic performance of an RCC framed G+9 building structure. [12] By subjecting the building model to live, dead, wind, and seismic loads, the study endeavors to elucidate the efficacy of friction dampers and fluid viscous dampers in mitigating structural vibrations and enhancing overall seismic resilience. Ultimately, the study underscores the paramount importance of damping systems in safeguarding buildings against seismic hazards. By harnessing the unique capabilities of friction dampers and fluid viscous dampers, engineers can effectively fortify structures, thereby averting potential damage and preserving lives and livelihoods. Through meticulous analysis and thoughtful integration of damping technologies, the study endeavors to contribute to the advancement of resilient infrastructure, paving the way for safer and more sustainable built environments in seismic-prone regions [13, 14].
Key Words: Structural analysis, fluid viscous damper, friction damper, Story drift
1.INTRODUCTION In the world of structural engineering, the seismic analysis of buildings stands as a cornerstone in the world of structural engineering, the seismic analysis of buildings stands as a cornerstone in ensuring their safety and resilience against the formidable forces of earthquakes. As seismic events continue to pose significant threats to infrastructure worldwide, the integration of effective damping systems emerges as a paramount strategy in fortifying buildings against potential devastation. [1-3] Among the array of damping technologies, friction dampers and fluid viscous dampers have emerged as notable contenders, each offering unique features and advantages in mitigating structural vibrations and enhancing seismic performance. [4-7]
This study aims to conduct a comprehensive analysis of the seismic performance of an RCC framed G+9 building structure, focusing on the efficacy of friction dampers and fluid viscous dampers in enhancing resilience against seismic hazards. Through the utilization of ETABS software, the objectives encompass developing a detailed architectural and structural design in adherence to Indian building codes, performing thorough structural analysis under diverse loading conditions, and evaluating seismic performance by assessing factors like displacements, drifts, and accelerations
Friction dampers harness the principle of friction to dissipate energy and attenuate the oscillations induced by seismic forces. By strategically introducing controlled
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