Development of RTHS Framework at PDTF, IIT Kanpur

The goal of this proposal is to develop a laboratory framework at the recently completed pseudo-dynamic testing facility (PDTF) of IIT Kanpur for RTHS of structures subjected multiple hazards, including seismic and wind loads. In this project, a family of explicit unconditionally stable parametrically dissipative direct integration algorithms, namely the modified KR-𝛼 method, will be implemented for conducting HS and RTHS, especially for conducting RTHS using a shake table. A finite element software framework for modelling of complex analytical substructures including structural members and soil will be developed using MATLAB and Simulink. Several compensation and control algorithms available in the literature will be implemented for accurate control of actuators and shake tables, and their performance will be investigated through predefined displacement tests and RTHS. An integrated IT framework consisting of host PC, target PC, servo-controller, data acquisition system and SCRAMNet (shared common random memory network) will be developed for ensuring real-time communication between these systems. The developed RTHS framework will be experimentally validated through a series of shake table RTHS, HS using actuators, pure shake table tests, and numerical simulations using simple structural systems.