Civil Engineering

This proposal deals with the development of a robust frequency dependent linear optimal adaptive control algorithm aimed at response control of a structural system at a minimum input effort while subjected to an external excitation. Civil structures attract severe force during strong intensity earthquake or strong wind excitations which belong to different frequency ranges.

Inter-annual (El Nino Southern Oscillation (ENSO)), decadal and multidecadal (Pacific Decadal Oscillation (PDO), Atlantic Multidecadal Oscillation (AMO), etc.) ocean atmospheric (OA) oscillations affect different components of the hydrologic cycle and are responsible for extreme hydrologic events such as floods and droughts around the world. Studies have reported that variability in Indian Summer Monsoon (ISM) are linked to ENSO phases.

The Indo-Himalayan region is vulnerable to many natural extremities such as landslides, earthquakes, flash floods among others. There are two issues when an extreme event hits an area. The most important one is the evacuation of the population that has been affected by the event and the second issue is to ensure mobility post event. Since the natural events are random, it is difficult to say a priori the location of occurrences of events and their impacts transport network and mobility. However, a probabilistic assessment is feasible.