Optimization of cable forces for externally inclined low pylon cable-stayed bridges based on influence matrix method
Based on the theory of influence matrix method,this paper takes the(87+160+87)m double-tower outward-inclined double-cable-plane PC short tower cable-stayed bridge over Chengxiang River in Fushan county as the engineering background.By using Midas Civil finite element software for modeling and calculation,the cable force calculation optimization of the outward-inclined short tower cable-stayed bridge in both construction stage and completion stage is explored.The stress amplitude of cable force of the outward-inclined short tower cable-stayed bridge is studied,and the optimization result of cable force satisfies the design and construction requirements,which can provide design reference for similar bridges.
influence matrixoutward-inclined short tower cable-stayed bridgecable-stayed cablecable forcestress amplitude