| Popis: |
This paper first introduces the basic principles and stimulation methods of the grillage method, using such method to conduct stimulation analysis of a certain curved beam bridge—a ramp bridge of Jingkai Road in Beijing—as its engineering background. By using MIDAS/CIVIL, a software finite element method to analyze structures, a single beam model and grillage method model were built, and the comparisons and the analysis about deflection and stress among these models was conducted. The conclusion indicates that the calculation results obtained from the grillage method are closer to the values required in actual construction. The analysis revealed that the models based on the grillage method can reflect the mechanical properties and stress state more efficiently and accurately. Therefore, the grillage method is a very convenient and practical method for analyzing urban curved beam bridges, and it is verified that it can be used in the analysis of urban curved bridges. |
