Generally,there are two ways of transporting box girder in high-speed railway,which are lifting girder on bridge by bridge pier or transporting girder on bridge by road in subgrade section.Higher requirements are put forward for the selection of beam field location and the topographical conditions of the project.this paper takes a high-speed railway connection line as an example to study the way of building steel trestle bridge to carry girder on the bridge,which provides a new idea for the transportation of box girder,so as to solve the problem of girder erection in difficult areas.in the article,through the analysis of the location of the beam beams and the listing of the beam beams,it is difficult to compare and analyze the three beams comparison schemes,which are based on the feasibility,expenses,construction period,and existing problems.it is currently successfully implemented in this project.The research results can provide good reference and reference value for the design and construction of similar projects in the future.
关键词
邻近既有线/架梁/运梁马道/钢栈桥
Key words
the existing main railway/the girder erection planning/transportation bridge channel/steel trestle