Title :
Geometrical nonlinearity under live load for super long span cable-stayed bridges
Author :
Song, Bing-quan ; Zhang, Hai-tao ; Lin, Zhi ; Liang, Peng
Author_Institution :
Ningbo Commun. Eng. Constr. Group Co.Ltd., Ningbo, China
Abstract :
As cable-stayed bridge span increases, the effect of the geometrical nonlinearity becomes even more significant. Based on linearity, deflection and nonlinearity theory, live load response is analyzed for Sutong Bridge whose main span reaches 1 088 m. It is concluded that deflection theory(i.e. equivalent modulus of elasticity of cable stays and geometrical matrix of dead load state are taken into account) can satisfied the demand of engineering even for the highway bridges whose main span exceed 1000 m.
Keywords :
bridges (structures); cables (mechanical); elasticity; Sutong bridge; deflection theory; elasticity; geometrical nonlinearity; highway bridges; nonlinearity theory; size 1088 m; super long span cable-stayed bridges; Bridges; Force; Poles and towers; Rivers; Stress; Structural beams; Vehicles; 2nd order theory; Cable-stayed bridges; Geometrical nonlinearity; Linear theory; Live load; Nonlinear theory; Super long span;
Conference_Titel :
Electric Technology and Civil Engineering (ICETCE), 2011 International Conference on
Conference_Location :
Lushan
Print_ISBN :
978-1-4577-0289-1
DOI :
10.1109/ICETCE.2011.5776015
