Location
St. Louis, Missouri
Presentation Date
14 Mar 1991, 10:30 am - 12:30 pm
Abstract
The Himalayan belt, Indo-Gangetic Plains and Peninsular shield divide India in three major regions with decreasing seismic potential. The Indian Standard Criteria for Earthquake Resistant Design of Structures (IS: 1893-19841) incorporate a seismic zoning map (SZM) demarcating five seismic zones, which show zones with many islands, and prescribed design parameters for the delineated zones do not show consistent exceedance probability. A probabilistic analysis has been carried out and seismic design ground motion parameters have been estimated for 100 years’ service life, which do not support delineation of five zones with uniform ratio of seismic hazard among various zones. Four seismic zones have been delineated expressing gross areal hazard and weighted average of design response acceleration have been evaluated for firm ground conditions in each zone. Guidelines to take into consideration effects on design ground motion parameters due to rock and soil cover overlying underground structures, and excitation of hill ranges bordering deep valleys in mountainous terrains have been indicated.
Department(s)
Civil, Architectural and Environmental Engineering
Meeting Name
2nd International Conference on Recent Advances in Geotechnical Earthquake Engineering and Soil Dynamics
Publisher
University of Missouri--Rolla
Document Version
Final Version
Rights
© 1991 University of Missouri--Rolla, All rights reserved.
Creative Commons Licensing
This work is licensed under a Creative Commons Attribution-Noncommercial-No Derivative Works 4.0 License.
Document Type
Article - Conference proceedings
File Type
text
Language
English
Recommended Citation
Srivastava, L. S. and Basu, S., "Seismic Zonation of India" (1991). International Conferences on Recent Advances in Geotechnical Earthquake Engineering and Soil Dynamics. 14.
https://scholarsmine.mst.edu/icrageesd/02icrageesd/session09/14
Included in
Seismic Zonation of India
St. Louis, Missouri
The Himalayan belt, Indo-Gangetic Plains and Peninsular shield divide India in three major regions with decreasing seismic potential. The Indian Standard Criteria for Earthquake Resistant Design of Structures (IS: 1893-19841) incorporate a seismic zoning map (SZM) demarcating five seismic zones, which show zones with many islands, and prescribed design parameters for the delineated zones do not show consistent exceedance probability. A probabilistic analysis has been carried out and seismic design ground motion parameters have been estimated for 100 years’ service life, which do not support delineation of five zones with uniform ratio of seismic hazard among various zones. Four seismic zones have been delineated expressing gross areal hazard and weighted average of design response acceleration have been evaluated for firm ground conditions in each zone. Guidelines to take into consideration effects on design ground motion parameters due to rock and soil cover overlying underground structures, and excitation of hill ranges bordering deep valleys in mountainous terrains have been indicated.
