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Vulnerability Assessment of a Heritage Structure Subjected to Blast-Induced Ground Motions


Affiliations
1 Earthquake Engineering Research Centre, International Institute of Information Technology, Hyderabad 500 032, India
2 CSIR-National Geophysical Research Institute, Hyderabad 500 007, India
3 Department of Civil Engineering, Anurag Group of Institutions, Hyderabad 501 301, India
4 Department of Civil Engineering, Indian Institute of Technology Madras, Chennai 600 036, India
 

A ground-structure vibration response study was carried out at the Ramappa Temple near Warangal, Telangana, India, shaken by underground blasting undertaken at the neighbouring Devadula Lift Irrigation Project to build water tunnels. The intensities of vibrations were examined – subsurface and ground vibrations were measured using velocity meters, and shaking at the temple using accelerometers. The study concluded that high-frequency vibrations of the ground were filtered by the soft natural clay bed underneath, and vibrations at the temple structure were small and well below the levels that can cause damage to it. Here we present the scientific findings of the vibrations recorded during the blasts and their implications.

Keywords

Heritage Structure, Structural Response, Tunnel Blasting, Vibrations, Vulnerability Assessment.
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  • Vulnerability Assessment of a Heritage Structure Subjected to Blast-Induced Ground Motions

Abstract Views: 416  |  PDF Views: 142

Authors

R. Pradeep Kumar
Earthquake Engineering Research Centre, International Institute of Information Technology, Hyderabad 500 032, India
D. Srinagesh
CSIR-National Geophysical Research Institute, Hyderabad 500 007, India
T. Seshunarayana
CSIR-National Geophysical Research Institute, Hyderabad 500 007, India
R. K. Chadha
CSIR-National Geophysical Research Institute, Hyderabad 500 007, India
Narender Bodige
Department of Civil Engineering, Anurag Group of Institutions, Hyderabad 501 301, India
G. Suresh
CSIR-National Geophysical Research Institute, Hyderabad 500 007, India
D. Hima Chandan
Earthquake Engineering Research Centre, International Institute of Information Technology, Hyderabad 500 032, India
C. V. R. Murty
Department of Civil Engineering, Indian Institute of Technology Madras, Chennai 600 036, India

Abstract


A ground-structure vibration response study was carried out at the Ramappa Temple near Warangal, Telangana, India, shaken by underground blasting undertaken at the neighbouring Devadula Lift Irrigation Project to build water tunnels. The intensities of vibrations were examined – subsurface and ground vibrations were measured using velocity meters, and shaking at the temple using accelerometers. The study concluded that high-frequency vibrations of the ground were filtered by the soft natural clay bed underneath, and vibrations at the temple structure were small and well below the levels that can cause damage to it. Here we present the scientific findings of the vibrations recorded during the blasts and their implications.

Keywords


Heritage Structure, Structural Response, Tunnel Blasting, Vibrations, Vulnerability Assessment.

References





DOI: https://doi.org/10.18520/cs%2Fv119%2Fi7%2F1131-1141