I am involved in teaching courses on Applied Mechanics and Dynamics. My research interest includes earthquake engineering with balanced emphasis on structural and geotechnical engineering. Some important milestones of my research group may be enumerated as follows:
(a) Using principles of applied mechanics and through advanced numerical studies, potential danger of amplification in response due to two-component shaking relative to one-component counterpart has been uncovered. To obviate the tedium of bi-directional analysis, a novel strategy which requires less-rigorous uni-directional analysis has been evolved. This eliminates the need of estimating structural response for all admissible incidence angles, too. This development has been shown generalized irrespective of site characteristics. This can succesfully help estimating seismic damage under bi-directional shaking.
(b) A generalized and robust approach to construct seismic fragilities has been introduced using spectrum matching. This method works well for any geotechnical and structural systems both under real and synthetic records.
(c) Potential danger of landsides during earthquake has been comprehensively investigated leading to a simple formulation of the intensity of shaking correspodning to the incipient landslide. By means of introducing formal dimensional analysis, a simple method to estimate the order of permanent displacement has been proposed.
(d) Several contributions on the implications of soil-structure interaction covering wide range of civil engineering structures have led to the meaningful solutions of many challenging problems of practical interest. By astute application of the principles of mechanics, methodology towards estimating lateral capacity of piles has been developed.
(e) Challenges associated with irregular structures has been elaborately explored with due cognizance to soil-structure interaction taking into account the emerging concepts and challenges relevant to (a) interdependency between strength and stiffness, (b) multistory systems in contrast to single story companion and (c) inherent uncertainties in ground motions. Concatenation of these studies evolves the important guidelines of mitigating dangers of structural irregularity.
Reference order No.: 19/14 dt. 28.05.2021
Reference Order: RDO/3046/20 dated 03.08.2020
Reference Order: RDO/3238/20 dated 23.11.2020
Reference Order: 7258/D (FW) dated 28.10.2020
Reference Order: 6979/D(FW)/20 dated 20.02.2020
Reference Order: RDO/2133/20 dated 06.01.2020
Research:
Inelastic seismic behaviour of plan-asymmetric structures: Implications of strength-dependent stiffness, spectral matching of accelerogram and strong motion characteristics
Research:
Response of RC Bridge Piers to Bi-directional Seismic Excitation for All Incidence Angles
Research:
Residual displacement of RC columns under bidirectional seismic excitation
Research:
Dynamics of free-standing rigid block under uni-directional and bi-directional base excitation
Research:
Implications of Site Characteristics on the Consequences of Sequence of Motions
Research:
Safety of structures due to earthquake-induced tsunami
Research:
Implications of angle of incidence and site characteristics on seismic vulnerability of irregular structures
Research:
Seismic behavior of RC bridge piers under bi-directional excitations: Implications of site effects
Research:
Engineering significance of seismic foreshocks and aftershocks with special focus on 2015 Nepal earthquake
Research:
Implications of rotating ground motions on inelastic seismic response under bi-directional excitations
Research:
Assessing seismic fragilities of structures through conventional IDA: Effect of bi-directional interaction
Research:
Incremental dynamic analysis: Proposals for modification towards realistic assessment of seismic structural fragilities
Research:
Estimating instability of slopes during earthquake
Research:
Implications of spectral matching of ground motions on seismic response of plan-asymmetric structures
Research:
Seismic behvaiour of elevated water tanks accounting for soil-structure interaction
Research:
Seismic behavior of multi-storey asymmetric structures: A revisit
Research:
Estimating lateral capacity of pile in layered soil
Research:
Response of seismically designed structures under blast loading
Research:
Engineering significance of seismic foreshocks and aftershocks with special focus on 2015 Nepal earthquake
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CITATION | H-INDEX | I-10 INDEX |
1110 | 17 | 21 |
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PUBLICATIONS | CITATION | H-INDEX |
36 | 821 | 15 |
Scopus | ||
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DOCUMENTS | CITATION | H-INDEX |
29 | 714 | 15 |
Created: 23 November 2019