Nonlinear inelastic time-history analysis of truss structures
Huu-Tai Thai, Seung-Eock Kim
JOURNAL OF CONSTRUCTIONAL STEEL RESEARCH | ELSEVIER SCI LTD | Published : 2011
This paper presents the nonlinear inelastic time-history analysis of truss structures including both geometric and material nonlinearities. The geometric nonlinearity is considered based on an updated Lagrangian formulation, while the material nonlinearity is captured by tracing an empirical stress-strain relationship in the elastoplastic range. The presented truss model is capable of capturing several failure modes of member such as buckling, yielding, inelastic post-buckling, unloading, and reloading. An incremental-iterative solution scheme based on the Newmark method and the Newton-Raphson method is adopted for solving the nonlinear equations of motion. A computer program is developed to..View full abstract
Awarded by Korea government Ministry of Knowledge Economy
This work was supported by the Human Resources Development of the Korea Institute of Energy Technology Evaluation and Planning (KETEP) grant funded by the Korea government Ministry of Knowledge Economy (No. 20104010100520).