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Pradeep Kumar, R.
- Vulnerability Assessment of a Heritage Structure Subjected to Blast-Induced Ground Motions
Abstract Views :232 |
PDF Views:83
Authors
R. Pradeep Kumar
1,
D. Srinagesh
2,
T. Seshunarayana
2,
R. K. Chadha
2,
Narender Bodige
3,
G. Suresh
2,
D. Hima Chandan
1,
C. V. R. Murty
4
Affiliations
1 Earthquake Engineering Research Centre, International Institute of Information Technology, Hyderabad 500 032, IN
2 CSIR-National Geophysical Research Institute, Hyderabad 500 007, IN
3 Department of Civil Engineering, Anurag Group of Institutions, Hyderabad 501 301, IN
4 Department of Civil Engineering, Indian Institute of Technology Madras, Chennai 600 036, IN
1 Earthquake Engineering Research Centre, International Institute of Information Technology, Hyderabad 500 032, IN
2 CSIR-National Geophysical Research Institute, Hyderabad 500 007, IN
3 Department of Civil Engineering, Anurag Group of Institutions, Hyderabad 501 301, IN
4 Department of Civil Engineering, Indian Institute of Technology Madras, Chennai 600 036, IN
Source
Current Science, Vol 119, No 7 (2020), Pagination: 1131-1141Abstract
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.Full Text
References
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- Approximate Natural Period Expression for Reinforced Concrete Tall Buildings in India
Abstract Views :96 |
PDF Views:53
Authors
Affiliations
1 Earthquake Engineering Research Centre, International Institute of Information Technology, Hyderabad 500 032, IN
2 CSIR-Central Building Research Institute, Roorkee 247 667, IN
1 Earthquake Engineering Research Centre, International Institute of Information Technology, Hyderabad 500 032, IN
2 CSIR-Central Building Research Institute, Roorkee 247 667, IN
Source
Current Science, Vol 124, No 12 (2023), Pagination: 1412-1421Abstract
Many tall buildings are being constructed in different Indian cities to cater to the demand generated by the large number of people migrating from rural areas to urban centres. The safety of such tall buildings is ensured by designing them for dynamic loads, viz. wind and earthquake. To withstand these loads, computation of the natural period becomes essential. The current Indian seismic code IS 1893 (2016) has outlined a few empirical expressions based on different structural systems to compute the natural period. These expressions have been developed using data obtained from experiments performed on low to midrise buildings. Thus, verifying their applicability for tall structures before using them is important. To achieve this, in the present study ambient vibration testing was done on 28 reinforced concrete (RC) tall buildings in the Indian cities of Hyderabad and Mumbai, whose heights ranged from 50 to 150 m. These tests’ natural periods were compared with existing Indian and international codes. Based on the comparison, a novel empirical expression of RC tall buildings is proposed here.Keywords
Ambient Vibration, Dynamic Loads, Fundamental Natural Period, Seismic Codes, Tall Building.Full Text
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