The geometric nonlinear factors include cable sag, beam-column effect and large structure displacement, and the aerodynamic nonlinear factors are wind incidence angle effect and self-excited force.
The national standards GB/T18365 - 2001 Technical Conditions for Hot - extruding PE High Tensile Cables of Cable Stayed Bridges has been published in china.
Cables with different spacing ratio W/D (where W is the spacing of centers of cables , D is the diameter of the cable ) , varying from 5.85 to 20 , and different wind yaw angle β, changing from -90°to 90°, were tested at uniform flow .
Moreover, the influence of pulse rise time and cable was discussed.
In addition, cable length has little influence on voltage distribution characteristics.
The reliability performance of the control system can be also improved by adopting the redundancy strategy or improving the quality of each component and cable of the system.
Damage identification of a large-span concrete cable-stayed bridge based on genetic algorithm
The global stability of a structure, the stiffness of its main girder and concrete tower, and the variation of the forces of its stay cables are key issues to the safety assessment of an in-service cable-stayed bridge.