Response Analysis of Two Parallel Buildings Coupled by Nonlinear Damper

  Gulshan Bharti

– In recent decades, considerable attention has been paid to research and development of structural control with the use of passive structural control devices. Nonlinear viscous dampers are generally well suited to vibration control of civil engineering structures subjected to seismic excitations. The results of several studies on the effects of supplemental viscous damping on the response of structures have showed that they are efficient and very effective in mitigating the seismic responses. This paper presents the response analysis of two parallel buildings coupled by nonlinear viscous damper. The base excitation considered is Imperial Valley, 1940 recorded excitation. The coupled buildings are assumed to be symmetric with their symmetric planes in alignment. The governing equations of motion of the coupled system are derived and are solved by Newmark’s time stepping method for displacement, velocity and acceleration responses of the coupled buildings. MATLAB programs are developed to determine the time history analysis of the dynamic motion of the system. The results of the coupled buildings are compared with that of the single building equipped with nonlinear viscous damper and it is found that the nonlinear viscous damper is very effective in reducing the displacement, velocity and acceleration responses of the parallel coupled buildings.

Keywords- Structural Control, parallel buildings, nonlinear viscous damper, seismic responses

Unique Identification Number - IJEDR1502207
Page Number(s) - 1263-1271
Pubished in - Volume 3 | Issue 2 | May 2015
DOI (Digital Object Identifier) -   
Publisher - IJEDR (ISSN - 2321-9939)

  Gulshan Bharti,   "Response Analysis of Two Parallel Buildings Coupled by Nonlinear Damper", International Journal of Engineering Development and Research (IJEDR), ISSN:2321-9939, Volume.3, Issue 2, pp.1263-1271, May 2015, Available at :http://www.ijedr.org/papers/IJEDR1502207.pdf