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2009, Volume 3, Issue 3

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Frontiers of Structural and Civil Engineering >> 2009, Volume 3, Issue 3 doi: 10.1007/s11709-009-0045-y

Limit span of self-anchored cable-stayed suspension cooperation system bridge based on strength

1.Bridge Science Research Institute, Dalian University of Technology, Dalian 116023, China; 2.Research Center for Numerical Test of Material Failure, Dalian University, Dalian 116622, China;

Available online: 2009-09-05
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Abstract

The limit span of self-anchored cable-stayed suspension bridge is deduced. The relations among the geometrical parameters, loads and material characteristics are also analyzed. Based on the material strength and commonly used materials, the limit spans of self-anchored cable-stayed suspension bridges with concrete girder or steel girder under vertical static load are discussed in detail. The corresponding upper limit spans and the effect of the factors on the span are given. The results indicate that increasing rise-span ratio, height-span ratio and cable-stayed segment length or reducing the second dead load could increase the cooperation system span.

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