Dr. Vasant Matsagar | Lawrence Technological University (original) (raw)

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Papers by Dr. Vasant Matsagar

Research paper thumbnail of Development of Optimal Anchor for Basalt Fiber–Reinforced Polymer Rods

Journal of Composites for Construction

Research paper thumbnail of Multihazard Response Control of Base-Isolated Buildings under Bidirectional Dynamic Excitation

Shock and Vibration

The issues of safety and posthazard functionality of structures under multihazard scenarios are s... more The issues of safety and posthazard functionality of structures under multihazard scenarios are some of the significant challenges in the current dynamic and rapidly growing urban environment. In this paper, multistory base-isolated buildings are investigated under the independent multihazard scenario of earthquake and blast-induced ground motion (BIGM). Multistory building models equipped with five different types of isolation systems, namely, the laminated rubber bearing (LRB), lead-rubber bearing (N-Z system), pure friction (PF) system, friction pendulum system (FPS), and resilient-friction base isolator (R-FBI) are assessed under bidirectional multihazard excitations. The suitability of the isolation systems and their key parameters in protecting multistory buildings is evaluated. Furthermore, the influence of the superstructure characteristics, such as the superstructure damping and the number of stories, is also assessed. The effect of bidirectional hazards on fixed-base build...

Research paper thumbnail of Earthquake Response Control of Isolated Bridges Using Supplementary Passive Dampers

Practice Periodical on Structural Design and Construction

Research paper thumbnail of Effectiveness of Friction Dampers in Seismic and Wind Response Control of Connected Adjacent Steel Buildings

Shock and Vibration

Effectiveness of friction dampers (FDs) is investigated for connected dynamically similar and dis... more Effectiveness of friction dampers (FDs) is investigated for connected dynamically similar and dissimilar steel buildings under uncorrelated seismic ground motion and wind excitations. The steel buildings involving moment-resisting frame (MRF) and braced frame (BF) are varied from five storeys to twenty storeys, which are connected by different configurations of the FDs. The steel buildings without and with bracing systems are modeled as plane frame structures with inertial masses lumped at each joint node. The FDs are modeled an element having yield force equal to slip load, with force-deformation behavior as elastic-perfectly plastic material. The dynamic responses of the unconnected and connected steel buildings are obtained in terms of top floor displacement and acceleration under the considered ground motion and wind excitations. It is concluded that the FDs help minimizing the gap between two adjacent buildings having utilized the space to connect the buildings. Moreover, the e...

Research paper thumbnail of Probabilistic assessment of steel buildings installed with passive control devices under multi-hazard scenario of earthquake and wind

Research paper thumbnail of Fire fragility of reinforced concrete panels under transverse out of plane and compressive in-plane loads

Research paper thumbnail of Seismic response control of steel benchmark building with a tuned mass damper

Asian Journal of Civil Engineering

Research paper thumbnail of High Strain-Rate Characterization of Deccan Trap Rocks Using SHPB Device

Journal of Materials in Civil Engineering

Research paper thumbnail of Supplemental dampers in base-isolated buildings to mitigate large isolator displacement under earthquake excitations

Bulletin of the New Zealand Society for Earthquake Engineering

The effect of viscous, viscoelastic, and friction supplemental dampers on the seismic response of... more The effect of viscous, viscoelastic, and friction supplemental dampers on the seismic response of base-isolated building supported by various isolation systems is investigated. Although base-isolated buildings have an advantage in reducing damage to the superstructure, the displacement at the isolation level is large, especially under near-fault ground motions. The influence of supplemental dampers in controlling the isolator displacement and other responses of base-isolated building is investigated using a multi-storey building frame. The coupled equations of motion are derived, solved and time history analysis is carried out on a building modeled with fifteen combinations of five isolation systems and three passive dampers. The seismic responses are compared with that of the fixed-base and base-isolated buildings. Based on the results, it is concluded that supplemental dampers are beneficial to control the large deformation at the isolator level. Parametric study is conducted and ...

Research paper thumbnail of Effectiveness of Tuned Mass Dampers in Seismic Response Control of Isolated Bridges Including Soil-Structure Interaction

Latin American Journal of Solids and Structures

Research paper thumbnail of Response of box-type structure and effect of structural parameters on reflected pressure under blast load

International Journal of Protective Structures

The study presented herein includes finite element analysis of a box type structure subjected to ... more The study presented herein includes finite element analysis of a box type structure subjected to blast loading using the coupled Eulerian-Lagrangian methodology to investigate the structural response. A comparative assessment of structural response observed from coupled Eulerian-Lagrangian and Unified Facility Criteria guidelines is presented. Furthermore, the effect of the structural parameters on reflected overpressure for different angle of incidence has been investigated and compared with that given in the Unified Facility Criteria. It is observed that the structural parameters significantly affect the reflected overpressure. The Unified Facility Criteria overestimates the response of structure in a certain region of angle of incidence while it underestimates the reflected pressure in the rest region of the angle of incidence.

Research paper thumbnail of Energy-based predictive algorithm for semi-active tuned mass dampers

The Structural Design of Tall and Special Buildings

Research paper thumbnail of Experimental and numerical investigations on dynamic behavior of CFRP laminates

Research paper thumbnail of Semi‐active algorithm for energy‐based predictive structural control using tuned mass dampers

Computer-Aided Civil and Infrastructure Engineering

Research paper thumbnail of Dynamic analysis of an offshore wind turbine under random wind and wave excitation with soil-structure interaction and blade tower coupling

Soil Dynamics and Earthquake Engineering

Research paper thumbnail of Seismic vulnerability of a non-linear building with distributed multiple tuned vibration absorbers

Structure and Infrastructure Engineering

Research paper thumbnail of Vulnerability analysis of tunnel linings under blast loading

International Journal of Protective Structures

In the present study, a comparative assessment on the performance of conventional and advanced tu... more In the present study, a comparative assessment on the performance of conventional and advanced tunnel lining materials subjected to blast loading is done using a three-dimensional non-linear finite element analysis procedure. The conventional tunnel lining materials analyzed herein are plain concrete, steel, reinforced cement concrete, and steel fiber–reinforced concrete. The advanced tunnel lining materials analyzed herein are dytherm, polyurethane, and aluminum syntactic foam sandwich panels with steel–foam–steel composites. The pressure generated by 10 kg Trinitrotoluene (TNT) is applied to each element on the inner wall of the tunnel which has an effect equal to the scaled distance Z = 1.16 m/kg1/3. Analyses are conducted by varying the thickness of lining materials for a tunnel built in rock domain. The response of the tunnel lining materials, for example, deformation, stresses, and strains generated at different interfaces, is compared with each other to assess the best suitab...

Research paper thumbnail of Wind response control of tall buildings with a tuned mass damper

Journal of Building Engineering

Research paper thumbnail of Effectiveness of passive response control devices in buildings under earthquake and wind during design life

Structure and Infrastructure Engineering

Research paper thumbnail of Dynamic analysis of an offshore monopile foundation used as heat exchanger for energy extraction

Research paper thumbnail of Development of Optimal Anchor for Basalt Fiber–Reinforced Polymer Rods

Journal of Composites for Construction

Research paper thumbnail of Multihazard Response Control of Base-Isolated Buildings under Bidirectional Dynamic Excitation

Shock and Vibration

The issues of safety and posthazard functionality of structures under multihazard scenarios are s... more The issues of safety and posthazard functionality of structures under multihazard scenarios are some of the significant challenges in the current dynamic and rapidly growing urban environment. In this paper, multistory base-isolated buildings are investigated under the independent multihazard scenario of earthquake and blast-induced ground motion (BIGM). Multistory building models equipped with five different types of isolation systems, namely, the laminated rubber bearing (LRB), lead-rubber bearing (N-Z system), pure friction (PF) system, friction pendulum system (FPS), and resilient-friction base isolator (R-FBI) are assessed under bidirectional multihazard excitations. The suitability of the isolation systems and their key parameters in protecting multistory buildings is evaluated. Furthermore, the influence of the superstructure characteristics, such as the superstructure damping and the number of stories, is also assessed. The effect of bidirectional hazards on fixed-base build...

Research paper thumbnail of Earthquake Response Control of Isolated Bridges Using Supplementary Passive Dampers

Practice Periodical on Structural Design and Construction

Research paper thumbnail of Effectiveness of Friction Dampers in Seismic and Wind Response Control of Connected Adjacent Steel Buildings

Shock and Vibration

Effectiveness of friction dampers (FDs) is investigated for connected dynamically similar and dis... more Effectiveness of friction dampers (FDs) is investigated for connected dynamically similar and dissimilar steel buildings under uncorrelated seismic ground motion and wind excitations. The steel buildings involving moment-resisting frame (MRF) and braced frame (BF) are varied from five storeys to twenty storeys, which are connected by different configurations of the FDs. The steel buildings without and with bracing systems are modeled as plane frame structures with inertial masses lumped at each joint node. The FDs are modeled an element having yield force equal to slip load, with force-deformation behavior as elastic-perfectly plastic material. The dynamic responses of the unconnected and connected steel buildings are obtained in terms of top floor displacement and acceleration under the considered ground motion and wind excitations. It is concluded that the FDs help minimizing the gap between two adjacent buildings having utilized the space to connect the buildings. Moreover, the e...

Research paper thumbnail of Probabilistic assessment of steel buildings installed with passive control devices under multi-hazard scenario of earthquake and wind

Research paper thumbnail of Fire fragility of reinforced concrete panels under transverse out of plane and compressive in-plane loads

Research paper thumbnail of Seismic response control of steel benchmark building with a tuned mass damper

Asian Journal of Civil Engineering

Research paper thumbnail of High Strain-Rate Characterization of Deccan Trap Rocks Using SHPB Device

Journal of Materials in Civil Engineering

Research paper thumbnail of Supplemental dampers in base-isolated buildings to mitigate large isolator displacement under earthquake excitations

Bulletin of the New Zealand Society for Earthquake Engineering

The effect of viscous, viscoelastic, and friction supplemental dampers on the seismic response of... more The effect of viscous, viscoelastic, and friction supplemental dampers on the seismic response of base-isolated building supported by various isolation systems is investigated. Although base-isolated buildings have an advantage in reducing damage to the superstructure, the displacement at the isolation level is large, especially under near-fault ground motions. The influence of supplemental dampers in controlling the isolator displacement and other responses of base-isolated building is investigated using a multi-storey building frame. The coupled equations of motion are derived, solved and time history analysis is carried out on a building modeled with fifteen combinations of five isolation systems and three passive dampers. The seismic responses are compared with that of the fixed-base and base-isolated buildings. Based on the results, it is concluded that supplemental dampers are beneficial to control the large deformation at the isolator level. Parametric study is conducted and ...

Research paper thumbnail of Effectiveness of Tuned Mass Dampers in Seismic Response Control of Isolated Bridges Including Soil-Structure Interaction

Latin American Journal of Solids and Structures

Research paper thumbnail of Response of box-type structure and effect of structural parameters on reflected pressure under blast load

International Journal of Protective Structures

The study presented herein includes finite element analysis of a box type structure subjected to ... more The study presented herein includes finite element analysis of a box type structure subjected to blast loading using the coupled Eulerian-Lagrangian methodology to investigate the structural response. A comparative assessment of structural response observed from coupled Eulerian-Lagrangian and Unified Facility Criteria guidelines is presented. Furthermore, the effect of the structural parameters on reflected overpressure for different angle of incidence has been investigated and compared with that given in the Unified Facility Criteria. It is observed that the structural parameters significantly affect the reflected overpressure. The Unified Facility Criteria overestimates the response of structure in a certain region of angle of incidence while it underestimates the reflected pressure in the rest region of the angle of incidence.

Research paper thumbnail of Energy-based predictive algorithm for semi-active tuned mass dampers

The Structural Design of Tall and Special Buildings

Research paper thumbnail of Experimental and numerical investigations on dynamic behavior of CFRP laminates

Research paper thumbnail of Semi‐active algorithm for energy‐based predictive structural control using tuned mass dampers

Computer-Aided Civil and Infrastructure Engineering

Research paper thumbnail of Dynamic analysis of an offshore wind turbine under random wind and wave excitation with soil-structure interaction and blade tower coupling

Soil Dynamics and Earthquake Engineering

Research paper thumbnail of Seismic vulnerability of a non-linear building with distributed multiple tuned vibration absorbers

Structure and Infrastructure Engineering

Research paper thumbnail of Vulnerability analysis of tunnel linings under blast loading

International Journal of Protective Structures

In the present study, a comparative assessment on the performance of conventional and advanced tu... more In the present study, a comparative assessment on the performance of conventional and advanced tunnel lining materials subjected to blast loading is done using a three-dimensional non-linear finite element analysis procedure. The conventional tunnel lining materials analyzed herein are plain concrete, steel, reinforced cement concrete, and steel fiber–reinforced concrete. The advanced tunnel lining materials analyzed herein are dytherm, polyurethane, and aluminum syntactic foam sandwich panels with steel–foam–steel composites. The pressure generated by 10 kg Trinitrotoluene (TNT) is applied to each element on the inner wall of the tunnel which has an effect equal to the scaled distance Z = 1.16 m/kg1/3. Analyses are conducted by varying the thickness of lining materials for a tunnel built in rock domain. The response of the tunnel lining materials, for example, deformation, stresses, and strains generated at different interfaces, is compared with each other to assess the best suitab...

Research paper thumbnail of Wind response control of tall buildings with a tuned mass damper

Journal of Building Engineering

Research paper thumbnail of Effectiveness of passive response control devices in buildings under earthquake and wind during design life

Structure and Infrastructure Engineering

Research paper thumbnail of Dynamic analysis of an offshore monopile foundation used as heat exchanger for energy extraction