The Construction Control And The Simulation Analysis Of Removing The Sunflower Tape Arched Bridge's Scaffolds

The bridge construction monitors and controls is the important constituent of the bridge construction technology. It takes the condition of bridge designs as the realization goal. In the whole construction process, through the real-time monitor of bridge structure actual condition, we can obtains the error between the bridge structure actual condition and the perfect condition. And then using the modern control theory, distinguishing, adjusting and forecasting the error, we can mke the bridge construction condition close in the perfect condition by the maximum limit. Thus we can guarantee the bridge structure in construction process security.This article introduced the content, method and characteristic of bridge construction monitoring content, and analyzed the influence factor of bridge construction control, the composition of bridge construction control system and the simulation analysis method of bridge construction process By the foundation of modern cybernetics.This article takes the finite element unit method as the rationale, establishes the entire structure simulation model of the Ziya River bridge through applyingthe general finite element software ANSYS, unifies the Ziya River bridge the actual construction process, uses the positive sequence repetitive process of the bridge construction control method to analysis and research the construction control of the scaffolds'removing, which are used for the full support of the reinforced concrete sunflower tape arched bridge, checks calculations and analyzes the original construction plan of the scaffolds'removing. Through calculating the main arch subsidence, the host arch stress and the scaffolds'stress of each operating mode, we can discover the design flaw and the insufficiency in the original plan, revise the original construction plan collapses according to the scaffolds'removing principle of the arched bridge, and then bases on the initial plan to propose the construction plan which conforms to the requests, to construction process. It can instruct the construction process theoretically, guarantee the bridge security in the construction process, reduce the construction difficulty and speed up the construction progress.