Contribution

1. Significant Contributions to Educational Development Program:
       During 95-97, acted as a member of the team for formulating the Undergraduate Curriculum in Engineering for Engineering Colleges in India recognized by All India Council of Technical Education (AICTE).
          During 90-96, coordinated the activities related to the upgradation and strengthening of the undergraduate program in Civil Engineering of the Institute of Engineering (IOE), Tribhuvan University, Kathmandu, Nepal. Later, acted as a principal member of the international team to formulate and set up the 2 years Master Degree Program in Structural Engineering for the same Institute. Currently involved in the development of their research program in Structural Engineering leading to the award of the Ph.D. degree.
        During 2000 onwards, actively involved as an expert member of the AICTE team for the inspection of technical qualification of Engineering Colleges of India. Also, involved as an expert member of the AICTE team for modernizing the technical facilities, providing research funding and monitoring the research programs of different technical institute in India.

2.Significant Contributions to Research:
      Significant contributions to research have been made in the area of Structural Dynamics related to Offshore Structures, Seismic Response of Structures, and Vibration of structures due to Wind and Vehicular movements. The research covers a wide range of application problems, such as; Seismic Response of Pipelines (offshore, overground and buried); Dynamic Response of compliant offshore platforms and flexible systems like, risers and submarine pipelines: Seismic Response of buildings and bridges: Wind Induced vibration of slender structures like tall buildings, chimneys, suspension bridges: Vibration of suspension and cable stayed bridges due to vehicular movements. Very few researchers have applied the theories of deterministic and probabilistic dynamics (theory of random vibration) on such a wide range of problem areas requiring deep understanding of Wind Engineering, Earthquake Engineering and Ocean Engineering. Innovativeness of research consists of identification of interesting and challenging problems in these areas, mathematical modeling of the problems and finding their solutions which are elegant and practical.
Major contributions include:
(i) Application of random vibration analysis techniques for solving an important class of onshore and off-shore structures;
(ii) Treatment of system nonlinearities in the dynamic analysis of structures using numerical solution techniques;
(iii) Study of the dynamic behaviour of some important class of structures such as offshore guyed tower platform, articulated towers, tension leg platforms, submarine pipelines, flexible risers, over ground and buried pipelines, suspension and cable stayed bridges etc.
        Other two areas where significant contributions have been made are the Structural Control and Reliability Analysis. Extensive theoretical studies have been carried out in passive, active and semi-active control of building structures. They include seismic base isolation of torsionally coupled building frames; control of the seismic response of building frames by tuned mass damper; and development and application of different types of active and semi-active control strategies for the reduction of seismic response of building frames and for controlling the response of compliant offshore structures. Research in the area of reliability analysis includes the reliability analysis of building and bridges for dynamic excitation caused by Wind and Earthquake. The researches in the areas of Structural Control and Reliability Analysis are significantly important to the Disaster Mitigation of Structures for Natural Hazards, which is one of the major thrust areas of research in India.