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| Design and Research of the Type of Wulongjiang River Super Large Bridge on Fuzhou-Pingtan Railway |
| YAO Han-wen |
| China Railway Siyuan Survey and Design Group Co. Ltd，Wuhan，Hubei 430063，China |
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Abstract Research purposes: As an important measure that serving the Pingtan comprehensive experimental zone and the cross-strait trying beforehand，Fuzhou-Pingtan railway will extend Beijing-Fuzhou Railway to the forefront of the mainland from Fuzhou，which meet the latest requirements of the development of the economic zone in the west coast， Wulongjiang bridge is the key project of Fuzhou-Pingtan railway. Having taken line，terrain，navigation，geological conditions into consideration，we compared and fixed the main bridge style to ensure the economy and rationality of the way in which Fuzhou-Pingtan railway leaping over Wulongjiang，as well as the beauty，economy，dynamic performance，technique，construction and maintenance of the bridge.
Research conclusions:(1)With the novelty , beauty，economy and rationality，Continuous Rigid Frame partially cable-stayed bridge style will be applied in railway for the first time. It is the best scheme for this bridge for its capacity of optimizing the forces of the beam and largely reducing the Creep deflection of the midspan. ( 2) Wulongjiang Bridge will take the (144+288+144 )m continuous rigid frame partially cable-stayed bridge style，which can ensure the force of the structure and the creep deflection，and meanwhile meet the static and dynamic requirement with some economy and beauty. (3)As a reasonable construction scheme，this bridge can provide some instructive experience to the subsequent bridges in the same style.
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Received: 06 May 2013
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2013, Vol. 30 
