RESEARCH ARTICLE


Seismic Behaviour of 17th Century Khusro Tomb due to Site-Specific Ground Motion



Arjun Prasad1, Kumar Pallav1, 2, *, Deepak K. Singh1
1 Civil Engineering Department, MNNIT Allahabad, Allahabad, U.P, India
2 Civil Engineering and Surveying Department, CPUT Bellville Campus, CapeTown, South Africa


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Creative Commons License
© 2019 Prasad et al.

open-access license: This is an open access article distributed under the terms of the Creative Commons Attribution 4.0 International Public License (CC-BY 4.0), a copy of which is available at: https://creativecommons.org/licenses/by/4.0/legalcode. This license permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

* Address correspondence to the Civil Engineering and Surveying Department, CPUT Bellville Campus, CapeTown, South Africa; Tel: +27644702633;
E-mails: kumarp@cput.ac.za; kumarpallav23@gmail.com


Abstract

Introduction:

Site Specific time history analysis is performed on a 17th century old Khusro Tomb built-in 1622 A.D. by Sultan Nisar Begum. It is a beautiful example of Mughal architecture.

Methods:

A 3-D finite element model is prepared on Ansys Workbench. Gravity analysis results show the behaviour of Tomb due to its geometry and stress variation is plotted in a form of contour. Modal analysis results show the first three frequencies of Khusro Tomb viz., 21.62, 21.68 and 25.38 Hz. In the absence of earthquake record, the stochastic finite fault model is used to generate synthetic site-specific time history to assess the seismic behaviour of the tomb.

Results and Conclusion:

Time history analysis results show that the Khusro Tomb's geometrical configuration is adequate to withstand the earthquake due to nearest Allahabad fault. The critical elements of the Tomb are highlighted based on analysis that can be effectively used for the maintenance of the Tomb.

Keywords: Khusro tomb, Mughal architecture, Static analysis, Modal analysis, Site specific time history analysis, Finite element analysis.