Numerical Simulation Analysis of Three-component Force Coefficient of Multi-span Continuous Rigid Frame Bridge
In order to study the variation of the three-component force coefficient of the bridge in the construction stage and the bridge completion stage.Taking the Lugou River Bridgeas an example,the numerical model of the bridge was established by computational flu-id dynamics method,and the variation law of the three-component force coefficient in the construction stage and the bridge completion stage was calculated and analyzed.The results show that under the same conditions,the variation law of the three-component force co-efficient in the construction stage and the bridge formation stage is basically the same.Due to the influence of the guardrail,compared with the construction stage,the three-component force coefficient of the bridge formation stage has changed significantly,the maximum difference between the resistance coefficient and the moment coefficient is more than 20%compared with the construction stage,and the lift coefficient is up to 17%compared with the construction stage.
continuous rigid frame bridgecomputational fluid dynamicsnumerical simulationthree-component force coefficient
NETL
NSTL
万方数据
维普
