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Showing 1 to 8 of 8 for “"nonlinear structural analysis"”.
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Objective functions for nonlinear structural analysis
… path. Hence algorithm 2 is a powerful tool for nonlinear structural analysis since it is able to predict the existence of limit and bifurcation points and to determine post-buckled equilibrium states. Also addressed are the methods of formulating mathematical models for nonlinear structural …
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An efficiency assessment of selected unconstrained minimization techniques as applied to nonlinear structure analyses
… with the conventional techniques of nonlinear structural analysis. With this in mind, the author has attempted to critically evaluate a few of the more commonly used algorithms for their effectiveness in solving structural problems involving geometric and/or material nonlinearities. …
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Performance of Reinforced Concrete Edge Beam -Column -Slab Connections Subjected to Earthquake Loading
"In seismic analysis of MRFs, beam-column connections are often modeled with rigid joint zones. However, it has been demonstrated that, in ductile RCMRFs designed based on current codes (to say nothing of older non-ductile frames), the joint zones are in fact not rigid, but rather undergo …
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Study of the I-35W Highway Bridge Collapse Mechanism
… event is studied in this research by performing nonlinear structural analysis on a simplified two-dimensional model. Nonlinear behavior is discretized at specific locations starting with buckling of the critical gusset plates and continuing with yielding in members where the internal forces …
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EFFICIENT SOLUTION METHODS FOR NONLINEAR FINITE ELEMENT ANALYSIS (DESIGN, GEOMETRIC MATERIAL, POST-BUCKLING, STRUCTURAL, MECHANICS, NUMERICAL).
Solution algorithms are developed for the nonlinear finite element equations, resulting from the discretization of governing incremental equations of equilibrium. The equations of equilibrium in the total Lagrangian formation are derived, based on continuum mechanics principles and by invoking the …
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Non-linear finite element analysis of steel frames in fire conditions.
… studies on steel frames in fire conditions. The nonlinear structural analysis is based on a tangent stiffness formulation using large deformation theory. Deterioration in material strength and stiffness at increasing temperature is represented by a set of nonlinear stress-straintemperature …
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Development, Analysis and Testing of a Hybrid Passive Control Device for Seismic Protection of Framed Structures
… without significantly decreasing the structural period. The significant energy dissipation capacity of a BRB is provided for significant seismic events in the second phase. The transition between these two phases consists of an increasing stiffness as the device transitions from rubber …
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Computer-aided design of tension structures
… behaviour are briefly described. From both the structural and architectural points of view, tension structures (classified as either prestressed cable nets or doubly curved membranes) do offer a number of benefits which arise from their characteristics and behaviour. The different types of cable …