Analysis on the Impact of the Backstays Forms on the Performance of Inclined Tower Cable-Stayed Bridge

Abstract:

In order to study the differences between spaces twisted backstay inclined tower cable-stayed bridge and conventionally cable-arranged cable-stayed bridge in mechanical property, this paper, taking a single-stay inclined tower space twisted backstays cable-stayed bridge as the study project, adopting FEM by changing the form of the backstays, makes a contrastive analysis on the difference between space twisted backstays cable arrangement (TBCA) and fan-shaped backstays cable arrangement (FBCA) in such aspects as static performance, dynamic property and stability. Some conclusions are concluded: the TBCA is easy to cause such problems as uneven distributed cable force, larger girders bending moment and stress; the integral rigidity of TBCA is less than that of FBCA; in stability, these two differ little, etc. As far as the overall comparison is concerned, TBCA is basically rational from the point of stress. However, while obtaining a certain visual effect, its mechanical property decreases somewhat.

• Periodical: Applied Mechanics and Materials (Volume 533)
• Pages: 127-134
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.533.127
• Online since: February 2014
• Authors: Bo Lei, Ying Zhao Lv, Wei Ren*
• Keywords: Bridge Engineering, Dynamic Performance, Fan-Shaped Backstays, Space Twisted Backstays, Static Performance

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