Seismic Response Control of Tall Buildings Installed with Linear and Nonlinear Viscous Dampers

International Journal of Civil Engineering

© 2024 by SSRG - IJCE Journal

Volume 11 Issue 8

Year of Publication : 2024

Authors : Bhargav S. Raval, Snehal V. Mevada

10.14445/23488352/IJCE-V11I8P105

How to Cite?

Bhargav S. Raval, Snehal V. Mevada, "Seismic Response Control of Tall Buildings Installed with Linear and Nonlinear Viscous Dampers," SSRG International Journal of Civil Engineering, vol. 11,  no. 8, pp. 46-66, 2024. Crossref, https://doi.org/10.14445/23488352/IJCE-V11I8P105

Abstract:

With urbanization and world population growth, vertical development of cities is taking place, demanding the construction of safe and pleasant tall building structures. The safety of tall buildings under natural hazards is a critical area of study. Advanced vibration control techniques in engineering absorb and dissipate the forces of nature, ensuring stability and safety. Seismic vibration control strategies for a symmetrical 25-storey tall reinforced concrete building installed with passive linear and nonlinear viscous dampers are presented. The tall building is 3D modelled and designed using ETABS software. The dampers are installed at all storeys, and two further innovative alternate-storey damper arrangement schemes have been presented. With the damper arrangement schemes, the seismic responses of the system installed with passive linear and nonlinear viscous damper are obtained by numerically solving the equation of motion using the state space method in MATLAB under the considered earthquake time histories. For the linear and nonlinear viscous damper, the optimum damping coefficient(C) is determined. The controllability index is determined to study the effectiveness of linear and nonlinear viscous dampers. Top storey controlled peak responses are compared for the placement of damper with various arrangement schemes and corresponding uncontrolled peak responses; peak top storey displacement, top storey accelerations, storey drifts, storey displacement, storey acceleration, damper forces and effectiveness of each damper are evaluated. Alternate damper arrangement and nonlinear viscous damper are found to be quite effective in controlling the responses corresponding to uncontrolled responses

Keywords:

Seismic response, Symmetric, Optimum, Passive linear viscous damper, Passive nonlinear viscous damper.

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