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Erschienen in:
2009 | OriginalPaper | Buchkapitel
Research on Limit Span of Self-Anchored Suspension Bridge
verfasst von : Wenliang Qiu, Meng Jiang, Zhe Zhang
Erschienen in: Computational Structural Engineering
Verlag: Springer Netherlands
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Self-anchored suspension bridges are increasingly appreciated by engineers for their aesthetic look, low cost and more adaptive for geological environment than earth-anchored suspension bridges. Many self-anchored suspension bridges have been completed or are in construction in the world. For huge horizontal component of main cable in the stiffening girder and the different construction method, self-anchored suspension bridge has much less limit span than earth-anchored suspension bridges. In this paper, the limit span of three-span self-anchored suspension bridge with two towers is deduced. Some factors, such as ratio of rise to span of main cable, ratio of side-span to mid-span, second dead load and live load, are analyzed in this paper. Based on the common used material and considering the main factors, the limit spans of self-anchored suspension bridges with concrete stiffening girder and with steel stiffening girder, are discussed in detail, and the corresponding limit spans are given.