Study On Construction Control Of Long-Span Continuous Rigid Frame Bridge And Local Stress Analysis

To ensure a continuous rigid-frame bridge in force and deformation in the structure is always in the process of construction safety control, and the main girder of the bridge line meets the design requirements after the completion of the bridge, structural internal force of dead load state approach the expectation, bridge construction monitoring is an essential part of the rational scientific measures.The paper taking the Qingxigou Bridge as engineering background, with the Doctor Brige and Midas this paper disperses and analyzes the structure, which consists of the girder and the piers.all these is analyzed with beam element concerning to the susceptibility of the struc ture in the cantilever construction. This paper also compares and analyzes calculated def lection and stress and the observed figures in each stage of construction. The systematic research of monitor control work of Prestressed concrete continuous rigid-frame bridge is carried.Analysis on construction of continuous rigid frame bridge piers in the process block of local stress, using a large, general purpose finite element program ANSYS finite element simulation analysis of establishment of continuous box beam in construction stage model. Fully taking into account a variety of factors influence on local model, mechanical analysis of box beam for force. Provide reference for future bridges of similar design, construction and use for reference.