| In recent years, with-span continuous rigid frame bridge construction technology andconstruction technology is maturing, such bridge type widely used in bridgeconstruction.Span continuous rigid frame bridge construction control technology research isparticularly important in this article is relying on a four-span continuous rigid frame bridgewith high piers large span continuous rigid frame bridge construction control processparameter sensitivity analysis and zero block local stress analysis.Use finite element software Midas Civil simulation analysis of a four-span continuousrigid frame bridge is in the process of construction control, some are prone to changeparameter sensitivity analysis was performed, and then, using the finite element softwareMidas locale Stress Analysis of a Continuous Rigid Frame zero block.This paper describes-span continuous rigid frame bridge development and structuralfeatures, outlined the significance of the construction control, theoretical analysis of the basicstructure of the construction control, content control, simulation of the construction process,construction control method and the Control of Construction-error Analysis and parameteridentification problem. Parameter sensitivity analysis process, first introduced the use of finiteelement software Midas Civil process of model building, a four-span continuous rigid framebridge structure weight (change the bulk density), structural stiffness (to change the modulusof elasticity)shrinkage and creep (1year,3years,5years), temperature (temperature gradientand the overall temperature rise) changes the internal forces and linear change of the bridgestructure.A continuous rigid frame zero local stress analysis, first introduced the use of finiteelement software Midas FEA establish zero block, the focus of in the maximum cantileverbridge state, blocks zero the stress distribution of the roof, the web and the bottom position,and the comparative analysis. |
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