Self-anchored Suspension Bridge Control

Self-anchored Suspension Bridge is drawing more and more people's attention because of kinds of advantages. As one of the difficulties during the construction, construction control is drawing people's attention as well. From the angle of girder stiffness, Self-anchored Suspension Bridge is divided into two parts, one with rigid girder and the other one with flexible girder. This paper studies methods and theries of Self-anchored Suspension Bridge construction control, based on the comparison and anlysis of construction control in the two kinds of bridges.This paper expounds the design idea and main contents of construction control system in Self-anchored Suspension Bridge with different girder stiffness. The paper also analyzes the numerical-analytical method and non-linear finite element method about how to analyze the cable shape of suspension bridge at cable finished stage. By combining the two methods mentioned above, a good way is found to solve the cable shape of Self-anchored Suspension Bridge, a key problem in the construction control system of Self-anchored Suspension Bridge. Then, the paper proves the viewpoints of the Weak Interference of Cable Displacements and contiguous Influence of Suspender Force based on the data analysis of construction control in Yiwujiang Bridge, which is used to illustrate the construction control in rigid girder Self-anchored Suspension Bridge. At last, through the introduction of structural properity and construction control in Wusongjiang Bridge with flexible girder, the paper probes into the key problems of indoor and outdoor works in Self-anchored Suspension Bridge construction control of this style of bridges. That will be used for reference for the construction control of Self-anchored Suspension Bridge in the future.