Open Access Journal

ISSN : 2394-2320 (Online)

International Journal of Engineering Research in Computer Science and Engineering (IJERCSE)

Monthly Journal for Computer Science and Engineering

Open Access Journal

IInternational Journal of Engineering Research in Mechanical and Civil Engineering (IJERMCE)

Monthly Journal for Mechanical and Civil Engineering

ISSN : 2456-1290 (Online)

Seismic Performance of Asymmetrical Building with TMD

Author : T. Naga Sai 1 P. Kamatchi 2 A.S.Santhi 3

Date of Publication :9th March 2017

Abstract: The Eccentricity in center of mass and the center of rigidity under the application of lateral loads causes different behaviour in flexible edge and stiff edge of an asymmetrical building when compared to the behaviour in edges of a symmetrical building. In this study, a typical ten storey RCC building with rectangular plan is considered with eccentricities introduced along the X-direction. Four different earthquakes are considered for linear time history analysis in Y-direction of the building. A tuned mass damper (TMD) with optimum tuning frequency and optimum damping ratio has been chosen with mass ratio 0.05 to control the edge displacements and base shear due to the application of earthquake time histories. The flexible and stiff edge response ratios in terms of peak displacements and normalized base shear with and without TMD are studied with respect to eccentricity ratio and frequency ratio of the building. The response ratios of flexible edge is higher than the response ratio of stiff edge with respect to both eccentricity ratio and frequency ratio for all four earthquakes considered. This study brings out the importance of including the effect of asymmetry in the design of TMD.

Reference :

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