Estimation of Local Site Effect on Earthquake Ground Motions for Sites in the State of Haryana, India

2020 ◽  
pp. 101-110
Author(s):  
Nitish Puri ◽  
Ashwani Jain
Keyword(s):  
Ground Motions ◽  
Site Effect ◽  
The State ◽  
Local Site Effect ◽  
Earthquake Ground Motions ◽  
Local Site

Contribution of local site-effect on the seismic response of suspension bridges to spatially varying ground motions

2016 ◽  
Vol 10 (5) ◽  
pp. 1233-1251 ◽  
Author(s):  
Suleyman Adanur ◽  
Ahmet C. Altunisik ◽  
Kurtulus Soyluk ◽  
A. Aydin Dumanoglu ◽  
Alemdar Bayraktar
Keyword(s):  
Seismic Response ◽  
Ground Motions ◽  
Site Effect ◽  
Suspension Bridges ◽  
Local Site Effect ◽  
Local Site ◽  
Spatially Varying Ground Motions ◽  
Spatially Varying

ANALYSIS OF LOCAL SITE EFFECTS ON SEISMIC RESPONSE OF FRAME STRUCTURES SUPPORTED BY FOUNDATIONS AT DIFFERENT ELEVATIONS

2019 ◽  
Vol 3 (Special Issue on First SACEE'19) ◽  
pp. 181-190
Author(s):  
Yangyang Tang ◽  
Yingmin Li ◽  
Zongming Huang ◽  
Liping Liu ◽  
Yishun Ding ◽  
...  
Keyword(s):  
Seismic Response ◽  
Ground Motion ◽  
Ground Motions ◽  
Site Effect ◽  
Frame Structure ◽  
Frame Structures ◽  
Soil Conditions ◽  
Local Site Effect ◽  
Local Site ◽  
Set Up

Frame structures supported by foundations with different elevations (such as a structure on the slope) undergo different ground motions because of the local site effect. Seismic response of the structure under non-uniform excitation of ground motion is different from that under uniform excitation on upper embedding end or lower embedding end. Sites with the same height difference and different soil conditions were set up in this paper to subject them to ground motions related to different positions and the seismic response of structures built on the sites under uniform and non-uniform strong seismic excitation were compared. The results show that the predominant period and amplitude of ground motions on upper embedding end and lower embedding end are different and affected by soil conditions. The extent and law of amplification of shear force, displacement and storey drift of structures under non-uniform excitation differ from those under uniform excitation when soil changes from soft to medium-hard soil. In addition, the position and degree of plastic hinges change under non-uniform excitation compared to uniform excitation. The uniform excitation using the ground motion on the upper embedding end is not always safe for the frame structure supported by foundations at different elevations.

Application Of Surface-Wave Method To The Evaluation Of Local Site Effect Of 2007 Noto Earthquake

2008 ◽  
Author(s):  
Koichi Hayashi ◽  
Masahito Tamura ◽  
Tsutomu Hirade ◽  
Kosh Nath Adhikari ◽  
Yu Shizhou
Keyword(s):  
Surface Wave ◽  
Site Effect ◽  
Wave Method ◽  
Local Site Effect ◽  
Local Site ◽  
Surface Wave Method

Comparison of different local site effect estimation methods in site with high thickness of alluvial layer deposits: a case study of Babol city

2020 ◽  
Vol 13 (7) ◽  
Author(s):  
Asskar Janalizadeh Choobbasti ◽  
Saman Soleimani Kutanaei ◽  
Hamed Taleshi Ahangari ◽  
Meisam Mahmudi Kardarkolai ◽  
Hossein Motaghedi
Keyword(s):  
Site Effect ◽  
Estimation Methods ◽  
Local Site Effect ◽  
Local Site ◽  
Effect Estimation

scholarly journals Seismic hazard assessment and local site effect evaluation in Hanoi, Vietnam

2017 ◽  
Vol 17 (4B) ◽  
pp. 82-95
Author(s):  
Nguyen Anh Duong ◽  
Pham Dinh Nguyen ◽  
Vu Minh Tuan ◽  
Bui Van Duan ◽  
Nguyen Thuy Linh
Keyword(s):  
Seismic Hazard ◽  
Shear Wave ◽  
Ground Motion ◽  
Wave Velocity ◽  
Shear Wave Velocity ◽  
Peak Ground Acceleration ◽  
Site Effect ◽  
Local Site Effect ◽  
Ground Acceleration ◽  
Local Site

In this study, we have carried out the probabilistic seismic hazard analysis in Hanoi based on the latest seismotectonic data. The seismic hazard map shows peak ground acceleration values on rock corresponding to the 10% probability of exceedance in a 50-year time period (approximately return periods of 500 years). The calculated results reveal that the maximum ground acceleration can occur on rock in Hanoi is about 0.13 g corresponding to the shaking intensity level of VIII on the MSK-64 scale. The ground motion values calculated on rock vary according to the local site conditions. We have evaluated and corrected the local site effects on ground motion in Ha Dong district, Hanoi by using microtremor and borehole data. The Nakamura’s H/V spectral ratio method has been applied to establish a map of ground dominant periods in Ha Dong with a TS range of 0.6 - 1.2 seconds. The relatively high values of periods indicate that Ha Dong has soft soil and thick Quaternary sediments. The sediment thickness in Ha Dong is calculated to vary between 30 - 75 m based on ground dominant periods and shear wave velocity VS30 = 171 - 254 m/s. The results of local site effect on ground motion show that the 500-year return period peak ground acceleration in Ha Dong ranges from 0.13 g to 0.17 g. It is once again asserted that the seismic hazard in Hanoi is a matter of great concern, due not only to the relatively high ground acceleration, but also to the seismic characteristics of soil (low shear wave velocity, ground dominant period of approximately 1 second).

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