Progressive Collapse Analyses of Steel Framed Moment Resisting Structures
Open Access
Author:
Lim, Joonhong
Graduate Program:
Civil Engineering
Degree:
Doctor of Philosophy
Document Type:
Dissertation
Date of Defense:
May 19, 2004
Committee Members:
Theodor Krauthammer, Committee Chair/Co-Chair Dr Burnett, Committee Member Kevin L Koudela, Committee Member Dr Ventsel, Committee Member
Keywords:
Progressive Collapse Steel Frame Second order inelastic analysis Buckling
Abstract:
Progressive collapse has been an important issue in building failures since the collapse of the Ronan Point apartment building in 1968. Progressive collapse is a failure sequence that relates local damage to large scale collapse in a structure. Three different failure criteria have been considered in this study. They are material failure, buckling failure, and connection failure. Material and buckling failures were analyzed by using a second-order inelastic method. Connection failures were analyzed by using a moment-curvature relationship calculated by a power model using three parameters.
The finite element code ABAQUS/Explicit has been used for the analyses. Single column failure results from the ABAQUS/Explicit simulations and from the NFA developed for this study based on the second-order inelastic method were compared for a verification purpose. Several combinations of 2D and 3D models were also analyzed to obtain the tendency of progressive collapse.
