A5090269612- earthquake and tectonic studies
- Seismic Performance and Analysis
- Seismic Waves and Analysis
- Geological formations and processes
- Geotechnical Engineering and Underground Structures
- Earthquake Detection and Analysis
- Landslides and related hazards
- Seismic Imaging and Inversion Techniques
- Structural Health Monitoring Techniques
- Geophysical Methods and Applications
- Geotechnical and Geomechanical Engineering
- Geophysics and Gravity Measurements
- Dam Engineering and Safety
Indian Institute of Technology Hyderabad
2022
The numerical simulation of gravity perturbations associated with deep slab deformations during the seismic cycle great subduction earthquakes remains a significant challenge. This study presents novel approach for simulating anomalies induced by short-term using Spectral-Infinite-Element (SIE) method, implemented in SPECFEM-X tool. Geodynamic models involving different fault settings are developed within realistic 3D earth structure. includes layer infinite boundary elements surrounding...
Ground motion amplification has been observed in most earthquakes triggered near the sediment-filled basins such as 2015 Nepal and 1999 Chi–Chi events. Many numerical studies pointed out effect of various parameters material properties geometric features basin on ground but complete range source mechanism needs to be addressed. This paper presents parameters, strike, dip, rake angle fault moment magnitude ([Formula: see text] intensity measures (IMs) due basins. It is found that maximum...
Deep sedimentary basins often increase the intensity of ground motions, but this effect is not considered explicitly in most codal provisions. The basin amplification on structures to fragility level significant study. For first time, Steel Moment Resisting Frames (SMRF) presented as a function material and geometry. This paper evaluates material, depth, width Peak Ground Velocity (PGV), Spectral Acceleration (Sa), 4, 8, 12, 20 story steel using synthetic motions simulated SPECFEM3D. It has...
Dynamic rupture scenarios on various fault geometries are studied extensively in the literature for domains with planar top surface. However, landscapes earth, particularly tectonic regimes, can undulate upwards or downwards depending faulting conditions. In this paper, we a dipping model dip angle of 60 degrees, inspired by 2D version dynamic benchmark TPV10 from Southern California Earthquake Center (SCEC). A topographic feature adjacent to is introduced form hill valley. The shape...
Bridges in earthquake-prone states like California have been studied for near-field and far-field loadings. However, there is a research gap terms of how an earthquake certain strike, dip, rake going to influence the bridge response. Here, we focus on multispan continuous concrete single-frame box girder bridges. In this study, simulate earthquakes varying focal mechanisms perform nonlinear dynamic analysis bridges with synthesized ground motion. Furthermore, azimuth orientation respect...
The main objective of this study is to understand the dependency basin amplification on-site and source parameters employing high computational numerical simulations. This mainly addresses effect fault dip, size basin, site classification, position on wave amplification. Two dip angles are considered, 7 9 degrees, in estimate factor Amplifications observed at center edge station for three different sizes analyzed. Simulation results obtained from models with ASCE class C, D, E sediment...