Research on suspender force measurement of arch bridge based on finite element model

[摘要] The frequency method is the most commonly used method for arch bridge suspender force measurement. However, due to the complex boundary conditions of the suspender, it may bring error when the suspender is simply considered hinged. In this paper, the boundary condition of the suspender is identified by numerical simulation method. Also, the damping rubber and the flexural rigidity of the suspender are considered in the finite element model. The suspender force is identified by the least squares method based on the measured frequency. And the results show that the method has high precision and can meet the requirements of practical projects.

[发布机构] Shanghai Research Institute of Building Sciences, Shanghai; 200032, China^1

[效力级别] 经济学

[关键词] Arch bridge suspenders;Flexural rigidities;Frequency methods;High-precision;Least squares methods;Numerical simulation method;Practical projects