Analysis Of Construction Error Control Forspace Self Anchored Suspension Bridge

From the stress of the anchor suspension bridge is very clear, the second phase of the load and live load acts on the stiffening girder first, and then spread through the boom to main cable, main cable and then transmit the force to the anchoring system and the main tower. The whole structure since the photograph echo, form a balanced system.Compared to the anchor location convenient, from the huge anchorage, and anchoring of the horizontal component of the main cable can free to provide a prestressed concrete stiffening girder. Space compared to the anchor surface since the anchor the biggest characteristics is the main cable and derrick can provide lateral force component, to strengthen the stability of wind resistance. And in recent years, because of the space since the anchor suspension bridge and the characteristics of beautiful appearance of more and more popular with the masses.Space since the anchor suspension bridge in construction difficulty coefficient is big, not like a plane since the anchor of suspension Bridges and suspension Bridges by anchor through many project examples, have enough experience and results. In this paper, by using matsubara days hebei branch bridge (twin towers three across space since the anchor suspension bridge) as the research engineering background. By using finite element software Midas/Civil and mathematical calculation software Matlab tool. Main construction control was studied and the error due to construction of influence on structure, so as to give a reasonable construction Suggestions and calculation method. This article main research content is as follows:(1)First of all, using the finite element software iteration time into bridge model, then using Midas/Civil and Matlb of linear factors of suspension Bridges is analyzed. Temperature and wire rope length as well as the main cable drum on the empty cable shape and put forward the construction way of understanding the influence of; Rope clamp positioning on line, the influence of and space cable clamp lofting coordinate is deduced in detail the calculation process; Cable length, span,height error of these factors on the influence of the midspan sag of the linear ratio,and the later adjustment method in main girder alignment error.(2)Combined with the bridge system transformation process of construction error, mainly introduces the analysis and the thinking way to solve the problem.For the future appear to provide a solution of such problems.