Study on Beam Model of Continuous Wide Box Girder Bridge with Constant Section
With the beautiful appearance,good overall mechanical performance and high driving comfort,the prestressed concrete wide continuous box girder bridge has been widely used in engineering construction.In order to carry out the reasonable steel beam design for the beam of a wide box girder bridge,taking the 37 m+37 m+37 m+37 m+37 m constant-section continuous box girder bridge of Tongyu to Jiaojiang Binhai Highway project in Taizhou Bay Circular Economy Industrial Cluster Area as an engineering case,the relevant solid model is established by.using the finite element analysis software MIDAS FEA NX2022,and the load distribution ratio of each web of a single-box multi-chamber continuous beam is extracted to study the stress features of wide box girder web.The conclusion is that the stress of the edge web of a single-box multi-chamber wide beam under the constant load condition is smaller than that of the middle web.And the space between the supports and the relative stiffness of crossbeam and longitudinal beam has an effect on the internal force distribution of the box girder web,which provides some reference for the design of similar projects in the future.
bridge designload distribution ratiowide box beamprestressfinite element model
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