Research on rational structure of fully-consolidated prefabricated assembled bridge and its stress performance
In order to better meet the demand of urban overpass girder construction,a fully-consolidated precast concrete bridge construction program is proposed.Taking an urban interchange project as the research object,the static dynamic characteristics of fully-consolidated prefabricated assembled bridges are systematically analyzed,including the analysis of span combinations and joint lengths,the analysis of column heights and dimensions,the analysis of the influence of main girder alignment,the analysis of single load effect,the analysis of pile-soil effect,the analysis of side pier arrangement and the analysis of seismic performance,etc.,in addition the applicable conditions and structural stress improvement measures are proposed to give the relevant design and construction points.The study content has engineering demonstration significance and can be utilized in the construction of the bridge.The research has engineering demonstration significance and can provide reference for similar projects.