Study On Construction Control Technology Of Steel Concrete Composite Beam Bridge

With the rapid development of bridge technology,various bridges with beautiful forms and novel structures have emerged one after another.As a relatively "young" structural form,steel concrete structures are widely used in bridge construction.Steel concrete composite beam bridges are widely used in bridge construction of various spans due to their simple structure,rapid construction,and reasonable stress.In order to make the completed state of the steel concrete main beam bridge conform to the ideal state,it is necessary to carry out construction control on the steel concrete composite beam bridge.This paper takes the 1-65 m steel concrete composite beam bridge of Zhufu Interchange main line bridge as the engineering background.Firstly,based on the project,the MIDAS/CIVIL software is used to establish the main bridge model,divide the bridge construction stages,and determine the correctness of the model through structural checking calculations.At the same time,ABAQUS is used to establish a finite element model of the entire bridge,and select the beam section at the maximum bearing reaction force for spatial stress analysis;Secondly,determine the construction control technology used in the bridge construction,determine the stress monitoring content and linear monitoring content,and arrange the stress measurement points and linear measurement points;Thirdly,using a single parameter analysis method,changing the self weight of the main beam and environmental humidity,to study the impact of different construction stages on the stress and displacement of the bridge;Change the temperature of the main beam,study the impact on the stress and displacement of the bridge under different temperature conditions,draw conclusions and propose suggestions for construction control;Finally,through construction control technology,stress monitoring and linear monitoring during the entire construction process of the bridge are completed,and the results of stress monitoring and linear monitoring are obtaine...