Influence of Adjacent Deep Foundation Pit Construction on Main Beams of PC Continuous Box Girder Bridge

Abstract

: In order to study the influence of the construction of deep foundation pit close to the main girder of PC continuous box girder bridge on the mechanical performance of the main girder, this paper finds that the construction of deep foundation pit will have a certain impact on the mechanical performance of the main girder of the bridge through the analysis of test data, which is mainly reflected in the deformation and stress of the main girder. This paper also studies the relationship between temperature changes and stress changes. The research results have certain theoretical and practical significance for deep foundation pit construction and bridge design.