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| Scheme Research on 32 m Double Track Simply Supported Trough Girder of Pearl River Delta Intercity Railway#br# |
| LI Hong-zhi |
The Third Railway Survey and Design Institute Group Corporation, Tianjin 300142, China
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Abstract Research purposes：
Aiming at the characteristics of Pearl River Delta Intercity Railway, in order to give full play to advantages of trough grider, through comprehensive comparison and analysis research, this paper proposed scheme of 32 m double track simply supported trough grider for Pearl River Delta Intercity Railway.
Research conclusions：（１）Proposed scheme of 32 m double track simply supported trough grider with inclined wall Γ shaped web and solid bottom for Pearl River Delta Intercity Railway.（２）After comprehensive comparison, determined the deck arrangement that the cable trough is placed on both sides of the bottom of the groove track.（３）By analysis and comparison of various parts of the structure size for multiple program, multiple model, the recommended scheme met the use function, the index of calculation met the specification.（４）The recommended scheme satisfied the integral prefabricated erection construction demand, the transport frame integrated machine was more suitable for the trough grider, and put forward the transport frame integrated machine loading schema.（５）The research results can play a guiding role in the promotion and use of double simply supported trough grider of the intercity railway, as well as play a reference role in trough grider selection of other standard railway and subway.
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