桥梁设计外文翻译--荷兰跨线高架桥
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1、附录 4 外文文献翻译 RAILWAY SUSPENSION BRIDGE IN WOERDEN, THE NETHERLANDS SUMMARY In Woerden, a small town in the west of the Netherlands, a railway fly-over has been builtwhere two railway tracks meet. The fly-over consists of a single-track viaduct. This has alength of 438.5 m. The crossing angle is 10 de
2、grees. At the fly-over site the viaduct is suspended from a pylon that has been constructed over two tracks passing underneath. 1. INTRODUCTION A railway bridge was constructed in Woerden as part of the track expansion of theNetherlands Railways. More trains will be run, the running speeds will be i
3、ncreased and thepossibility of delays must be reduced. In order to make this possible, many line sections mustbe four-track and trains must be able to cross each other at different levels. This paper examines the fly-over in Woerden. 2. SITUATION AND REQUIREMENTS The fly-over in Woerden must bridge
4、the following elements: - two existing tracks; - two future tracks; - a polder drainage pool; - an underpass for all traffic. The subsoil exhibits a great variation in compressibility. The forecast for settlement after 30years for the adjacent track bed on one side is about 0.5 m and on the other si
5、de about 3 m. To limit settlement, and due to the lack of space for access, the construction height of thebridge must be as low as possible. The existing tracks and the underpass must remain in operation during the construction. Theflow capacity of the polder drainage pool may not be restricted. 3.
6、GENERAL DESCRIPTION The total length of the viaduct is 438.5 m, comprising six sections (fig. 1). Section I crosses the underpass and has a length of 82.3 m. The two intermediate supports aresituated immediately adjacent to the concrete casing of the underpass, setting the spans at 22.7 m, 35 m and
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