Compared with the test results, the calculation methods of the initial rotational stiffness and the bearing capacity and the mathematic model were testified to be true.
将建议公式计算值和试验结果作了比较，验证了初始转动刚度和极限承载力的计算方法和数学模型的正确性。
2
Building a finite element model of bridge, which accurately reflects the true structure's stiffness and mass distribution, can improve the precise of dynamic analysis results of structure very much.