STUDY ON STABILITY ANALYSIS OF LARGE CANTILEVER CONTINUOUS RIGID FRAME BRIDGE CONSTRUCTION
Taking the continuous rigid frame connection section of a certain bridge as the research object,the spatial stability of the continuous rigid frame connection section of the wenquan extra large bridge during various construction stages was analyzed using Euler elastic theory combined with finite element analysis method.By analyzing the stability of the bridge under multiple working conditions in three key stages:the top sealing stage of the main pier,the maximum cantilever stage of the bridge T-structure,and the completion stage,various factors that may affect the construction monitoring of the continuous steel frame bridge cantilever during winter were summarized.load analysis and combination of various factors were conducted,and specific impact values were calculated through finite element modeling.It has reference significance for understanding the stability status of this bridge and its main construction stages.
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