Nonlinear Dynamic Analysis Research Based on TEASPA Fiber Section Model

Nonlinear Dynamic Analysis Research Based on TEASPA Fiber Section Model

Using PERFORM-3D software , Replace nonlinear hinge with fiber section to explore and simulate the backbone curve of TEASPA's RC component. It also associated with the function of mutual control of axial force and bending moment and free setting of hysteresis loop rules. At the same time, the analysis results of the fiber section model and the nonlinear hinge model are compared with the three-story and seven-story structures of the South Laboratory of the NCREE. The analysis results show that the nonlinear dynamic analysis of the overall structure based on the fiber section model is efficient and feasible. It is compared that the experimental values, nonlinear hinges and fiber section models with each other. The results explain that fiber section model can reflect the axial force and bending moment of PM interaction. The convergence of the descending for fiber section model is better than the nonlinear hinge model. It can be use in nonlinear dynamic analysis. It means that the fiber section can make up for the shortcomings of PM non-linear hinges in ETABS that cannot freely set hysteresis behavior. Based on the fiber section model obtained by TEASPA method, the analysis results of the three-story and seven-story structures show that there is a certain degree of accuracy with the experimental values.