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Development of Stiffness Estimation Algorithm for Nonlinear Static Analysis of Bilinear Material Model
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 Title & Authors
Development of Stiffness Estimation Algorithm for Nonlinear Static Analysis of Bilinear Material Model
Jung, Sung-Jin; Park, Se-Hee;
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Estimating the nonlinear seismic response of structure in earthquake engineering is important. Nonlinear static analysis is a typical method, and a variety of methods and techniques for estimating the stiffness of structural system at a certain analysis stage have been introduced and used in numerical structural analysis. On the other hand, such methods have many difficulties in practical usage because they use time-consuming iterative methods or simplified algorithms for calculating the structural stiffness at specific points in the time of nonlinear static analysis. For this reason, this study suggests an accurate and effective method for estimating the stiffness of a structure in nonlinear static analysis. For this goal, existing theories of an incremental step-by-step solution was investigated first. Subsequently, an algorithm available for calculating the precise stiffness of a structural system, each element of which has a bilinear material model, was developed based on the investigated methods. Finally, a computer program, sNs, was developed with the algorithm used.
Algorithm;Bilinear Material Model;Computer Program;Incremental Step-by-Step Solution;Nonlinear Static Analysis;Stiffness Estimation;
 Cited by
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