Research Activities

Large Scale Testing of Structures

Quasi-static Cyclic testing of Confined Masonry Panels - Test Videos and Photos

Nonlinear Finite Element Simulations

I have developed 3D Finite Element macro as well as micro models of infilled Reinforced Concrete frames and Confined Masonry walls

Simplified 2D Model for Analysis of Confined Masonry (CM) Buildings

A software based Vertical-Diagonal (V-D) Strut model was developed for linear as well as nonlinear analysis of CM buildings under gravity and lateral loads. The V-D Strut model is really simple and can be very easily used in any FE programs to model even big CM buildings having several panels.

Design Methods for CM Buildings

A Trilinear Backbone Curve model was developed for performance based design. A methodology for distribution of lateral design forces in members was suggested based on some parameters like - masonry type, wall thickness, and wall aspect ratio.

Strong-Column Weak-Beam Design in Reinforced Concrete (RC) Buildings

Beam-column joints play a critical role in buildings by transferring loads between members and enhancing lateral stability.

I worked on a research project titled Evaluation of Column-to-Beam Flexural Capacity Ratio for Strong-Column Weak-Beam Design in RC Buildings, sponsored by the Science and Engineering Research Board (SERB), DST, Government of India.

Seismic Strengthening of Unreinforced Masonry (URM) Buildings

Masonry has been widely used in construction since ancient times, but many URM buildings in seismically active regions of developing countries urgently need strengthening. To ensure broad societal acceptance, the solution must be both cost-effective and easy to implement.

I worked on a research project titled Seismic Strengthening of Unreinforced Masonry Buildings using Ferrocement Bands, sponsored by the Council of Scientific and Industrial Research (CSIR), Ministry of Science and Technology, Government of India.

Lateral Load Behavior of Assam-type Wooden Housing

Assam-type houses are wooden structures commonly constructed in the north-eastern part of India. They have very high seismic resilience due to their inherent configuration, material, light weight, flexibility, and unique connections.

I worked on a research project titled Evaluation and Enhancement of Seismic Capacity of Assam-type Housing, sponsored by Department of Science and Technology (DST), Government of India.

Structural Safety Assessment

Structural safety assessment is a necessary step in deciding retrofitting strategies for old or damaged buildings. Large number of old buildings and even new buildings that are not constructed with sufficient care require immediate safety assessment to determine their remaining life. RVS (Rapid Visual Screening) along with NDT (Nondestructive Tests) are often used to assess the structural condition and subsequent retrofitting.

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Research Activities