The Study Of Construction Control Analysis For The Long-span Suspension Bridge

Modern structure theory , intensity of material, computer technology and progress of the construction method , make long-span suspension bridge develop rapidly in the 20th century , most long-span up to already 1991m. Because the bridge steps the increase of the span , make the construct control calculating becoming the essential link . In implement suspension bridge construct control, the control of empty cable shape are the key content and the main content calculated of the construct control . With suspension bridge increase of span , calculate theory develop from early elastic theory to the at present limited displacement theory, the result of calculation is more accurate.Utilize the perfect theoretical system and combine the strong computing function of the computer can carry on the development of the software , make construct control calculating more accurate and swifter. Domestic and international suspension bridge at present construct control system calculate and analyse by utilizing the structure analysis software that simulate construct mainly, get control parameters such as the vertical displacement of the main tower and the predicted partial quantity,etc, thus achieve the goal of controlling in advance. The software system that this text explains , besides above-mentioned functions , have also parameter discerning and functions as the temperature effect is revised; utilize facing target languaging visual at the same time , design visual interface that import digital, make the procedure more perceptual , easier to know in using; set up the database in addition, through visual aftertreatment of procedure being interface convenient to calculate to procedure achievement edit.This text combine the Wanzhou Changjiang River third bridge construct control project practice, through computational analysis and solve difficult problem that construct control appearing of procedure this, according to now existing technical force , put forward suspension bridge construct the concrete improvement suggestion controlled, for the suspension bridge in the future to construct control personnel to consult.