“…Katkhuda et al (2005) improved the efficiency further by modifying the iterative steps and denoted the procedure as generalized ILS-UI or GILS-UI. The GILS-UI procedure was extensively verified for one-dimensional beams and two-dimensional frames using both theoretical and experimental responses (Katkhuda et al, 2005;Katkhuda and Haldar, 2006;Martinez-Flores and Haldar, 2007).…”