Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Reliability Analysis of Concrete-Filled Tube Column
To improve the accuracy of describing the nonlinear behavior of long concrete-filled tubes (CFT) and make the nonlinear reliability analysis method more valuable for engineering application, based on the response surface and nonlinear finite element method, the reliability analysis model for the nonlinear carrying capacity of concrete-filled steel tube structure is made, with the help of consistent mode imperfection method to consider the initial geometric defects of the structure. After a parametric analysis of the diameter-thickness ratio and the slenderness ratio, the application scope is examined. The numerical results show that as the slenderness ratio increases, the influence of the initial geometric defects on the reliability of carrying capacity increases gradually. It is suggested that when the slenderness ratio is bigger than 15, the effect of initial geometric defects on the reliability index should be included. Moreover, when the diameter-thickness ratio is smaller, influence of geometric nonlinearity on the reliability index of the carrying capacity is obvious.
Reliability Analysis of Concrete-Filled Tube Column
To improve the accuracy of describing the nonlinear behavior of long concrete-filled tubes (CFT) and make the nonlinear reliability analysis method more valuable for engineering application, based on the response surface and nonlinear finite element method, the reliability analysis model for the nonlinear carrying capacity of concrete-filled steel tube structure is made, with the help of consistent mode imperfection method to consider the initial geometric defects of the structure. After a parametric analysis of the diameter-thickness ratio and the slenderness ratio, the application scope is examined. The numerical results show that as the slenderness ratio increases, the influence of the initial geometric defects on the reliability of carrying capacity increases gradually. It is suggested that when the slenderness ratio is bigger than 15, the effect of initial geometric defects on the reliability index should be included. Moreover, when the diameter-thickness ratio is smaller, influence of geometric nonlinearity on the reliability index of the carrying capacity is obvious.
Reliability Analysis of Concrete-Filled Tube Column
Liu, Lei-lei (Autor:in)
2012
5 Seiten
Aufsatz (Konferenz)
Englisch
Reliability Analysis of Concrete-Filled Tube Column
| British Library Conference Proceedings | 2012