• Simarpreet Singh Batra
• Dr. B.S. Walia

Earthquakes occur all over the world each second but of varying intensity and duration. Some of these earthquakes can cause huge loss of life due to inadequate resources to accurately predict earthquake occurrence time as well as due to faulty designed structures. In the recent years it has been studied by various scholars/researchers that soil overlying rocky strata of earth can hugely affect the properties of shear waves originated from earthquake like surface acceleration, surface velocity of shear waves. There is vast variety of soil lying in layers over hard bedrock strata of earth. Each layer of soil has its own property like Density, Shear Modulus, Shear strength etc. that can influence various ground motion parameters on occurrence of earthquakes in different regions. Due to relatively new field of research, Ground Response Analysis (GRA) of only few sites in different cities in India has been carried out till date. In the current research, attempt has been made to analyze the effect of soils on various ground motion parameters at different locations in Ludhiana namely Hero Bakery Chowk (LDN1), Hampton Plaza (LDN2) and Village Jhande (LDN3) using Accelerograms of Loma Gilroy Earthquake (PGA 0.17g), Uttarkashi Earthquake (PGA 0.253g) and Artificial Accelerogram (PGA 0.392g generated from SeismoArtif computer program) by carrying out One-Dimensional Equivalent-Linear GRA with the help of DEEPSOIL computer program. It has been observed that for different sites under consideration, Peak Ground Acceleration varies from 0.2824g to 0.7083g, Peak Spectral Acceleration varies from 1.3448g to 2.5817g and Amplification Ratio varies from 1.119 to 2.085. The current research can help the engineers extensively in designing earthquake prone structures in region of Ludhiana with the help of values of spectral accelerations obtained from GRA. The current variation of PGA values obtained after carrying out GRA from the value given by Bureau of Indian Standards for Zone IV in India proves the necessity of carrying out GRA at other regions in state of Punjab in Northern India too.

Amplification Ratio, Equivalent-Linear, Ground Response Analysis, Ludhiana, Peak Ground Acceleration (PGA), Peak Spectral Acceleration.

"SITE-SPECIFIC GROUND RESPONSE ANALYSIS AT DIFFERENT LOCATIONS IN LUDHIANA USING DEEPSOIL", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.6, Issue 5, page no.315-319, May 2019, Available :http://www.jetir.org/papers/JETIRCW06061.pdf

"SITE-SPECIFIC GROUND RESPONSE ANALYSIS AT DIFFERENT LOCATIONS IN LUDHIANA USING DEEPSOIL", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.6, Issue 5, page no. pp315-319, May 2019, Available at : http://www.jetir.org/papers/JETIRCW06061.pdf