Response analysis of structural building excited by seismic waves using finite difference method Online publication date: Fri, 29-May-2015
by Shashi Kumar; Swapan Kumar Chakraborty
International Journal of Structural Engineering (IJSTRUCTE), Vol. 6, No. 2, 2015
Abstract: The present article treats the finite difference modelling of multi-storey structures on flexible foundation due to seismic excitation. Previously, finite difference method has been used to analyse the wave propagation through medium comprising of layers of different physical properties. The same method is used for the problem considered here. The model here consists of a multilayer system comprising of structural building with a finite layer of sandy soil (as flexible foundation) and an inhomogeneous elastic half space embedded beneath the building structure. The displacement equations of inhomogeneous layer, flexible foundation and building are converted to finite difference algebraic equations. The phase and group velocities of the medium are being evaluated. Analysing these velocities it is observed that the wave energy do not make headway to the upper floors and even if it propagates, the shock imparted to the upper floors (beyond the flexible foundation) is very negligible.
Existing subscribers:
Go to Inderscience Online Journals to access the Full Text of this article.
If you are not a subscriber and you just want to read the full contents of this article, buy online access here.Complimentary Subscribers, Editors or Members of the Editorial Board of the International Journal of Structural Engineering (IJSTRUCTE):
Login with your Inderscience username and password:
Want to subscribe?
A subscription gives you complete access to all articles in the current issue, as well as to all articles in the previous three years (where applicable). See our Orders page to subscribe.
If you still need assistance, please email subs@inderscience.com
Our Blog 
Follow us on Twitter 
Visit us on Facebook