|
| Nonlinear transient response of stay cable with viscoelasticity damper in cable-stayed bridge |
| |
| View Full Text View/Add Comment Download reader |
| DOI：10.7511/jslx20043063 |
| KeyWord:stay cable,transient response,vibration control,non-linearity |
| Chen Shuisheng*1 Nao Aki Noda2 Zhang Ling1 |
|
| Hits: 1042 |
| Download times: 8 |
| Abstract: |
| Taking the bending stiffness, static sag, and geometric non-linearity into account, the space nonlinear vibration partial differential equations are derived. The partial differential equations are discretized in space by finite center difference approximation, then the nonlinear ordinary differential equations are obtained. A hybrid method involving the combination of the Newmark method and the pseudo-force strategy is proposed to analyze the nonlinear transient response of the inclined cable-dampers system subjected to arbitrary dynamic loading. As examples, two typical stay cable are calculated by the present method. The results reveal both the validity and the efficiency of the viscoelasticity damper for vibration control of stay cable. The efficiency and accuracy of the proposed method is also verified by comparing the results with those obtained by using Runge-Kutta direct integration technique. Some valuable suggestions are proposed for the engineering design. |
|
|
|