International Research Journal of Engineering and Technology (IRJET)
e-ISSN: 2395-0056
Volume: 10 Issue: 05 | May 2023
p-ISSN: 2395-0072
www.irjet.net
Study of Viscous Fluid Damper 6 Different Pattern on 12 Story Structure And Comparing Most, Mid and Least Effective Pattern on 17 Story Structure. Shaikh Jawwaad1, Pankaj Autade2 1PG student, department of civil engineering, DVVP COE Ahmednagar, India 2PG guide, department of civil engineering, DVVP COE Ahmednagar, India --------------------------------------------------------------------***-----------------------------------------------------------------------ABSTRACT
Buildings in seismically active regions need to be constructed with special consideration for their lateral stability. With the development of India Infrastructure development coincides with India's economic growth. Many high-rise buildings are currently being built in Indian metropolises, but as building heights rise and wind pressure increases, more support structures are required to prevent displacement. Due to the terrible earthquake in Turkey, it is crucial for architects to take extra precautions to ensure the safety of both the expensive structures and the priceless lives they contain. In India, viscous fluid dampers are not frequently employed. Except for the north side near the India-China border, most of India is in zones II and III, which are not prone to earthquakes. Area on the south-west side of Goa. Even though the data is not so favourable, it is vital to take into account the probability of an earthquake occurring. We cannot overlook the calamity in Turkey, where a structure collapsed and hundreds of lives were lost. We will use viscous fluid dampers in the construction of this research. Numerous researches have already established the effectiveness of VFD in reducing the movement of structures under wind and seismic loads or earthquake forces. This paper focuses on evaluating different patterns on 12 story structure and contrasting their effectiveness on diverse structures and comparing its effectiveness of pattern on 17 story structure. This report employs response spectrum analysis to produce results that are more precise.
Keywords: Viscous Fluid Dampers, earthquake forces, Response Spectrum Analysis. 1-INTRODUCTION Viscous Fluid dampers, or seismic dampers as they are likewise known, are devices that, when incited, disseminate the energy that seismic events, wind buffering, or warm movement force on a construction. The idea is straightforward: by dissipating the heat created by the structural movement into the air, the viscous dampers obey the rules of physics by following the principle of energy conservation. These small but mighty dampers raise structural damping levels to as much as 50% of critical, leading to a remarkably dramatic decrease in stress and deflection. The dependability and durability of our products are ensured by individually testing each damper at the highest forces and velocities that the customer has chosen. 1.1-Mathematical Modelling Of Fluid Viscous Dampers The constitutive equation below idealises the behaviour of a fluid viscous damper as a pure dashpot: Damping Force F = Damping Constant C x Velocity V α This Condition gives the connection between the damper result power and speed, where C and alpha are the damping steady and speed example, individually. The value of alpha of 1.0 represents linear dampers, whereas values other than 1.0 indicate nonlinear dampers. Specifications for alpha typically range from 0.3 to 1.0; the simple way to put it, the lower the exponent the more efficient damping for seismic energy dissipation. 1.2-Modelling Of Structure Building description The building analysed in this study is 12 story structure with 20x20m dimension a column of 450 mm and a total no of 36 4m center to center a beam of 230x450 mm was adopted and typical story height of 3m was adopted with typical height of 3m and a total height of 36.4m.
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