Study on Bridge Design of High Speed Railway Station in Mountainous Areas
The Manchuanguan Station on the Xi'an-Shiyan HSR features a station layout consisting of 2 platforms and 5 tracks,with 2 island platforms.The effective length of the receiving-departure track is 650 m.The station's large and small mileages are set on a bridge,while the central part of the station is situated on the subgrade.The height of the piers ranges from 6 m to 66 m and the lateral width of the station varies between 12.6 m to 47 m.The lateral terrain presents a one-way slope,and the terrain conditions are complex,making it a very typical mountainous high speed railway station bridge.Taking Manchuanguan Station Bridge as an example,this study outlines the design challenges,principles,and control factors associated with high speed railway station bridges in mountainous areas and explores the overall layout of the station bridge and conducts a comparative analysis of the structural forms of bridge piers,platform beams,and track beams.The findings confirm the selection of box girder structures and multi-column pier forms for the bridge,providing valuable references for the design of HSR station bridges in mountainous areas.
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