Study for reasonable value of friction coefficient between main cable and saddle |
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Authors: | Deng Ting Luo Xiheng |
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Institution: | (1. Department of Bridge Engineering, Tongji University, Shanghai 200092, China; 2. Architectural Design & Research Institute of Tongji University (Group) Co., Ltd., Shanghai 200092, China) |
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Abstract: | The value of friction coefficient between the main cable and saddle, relates to not only the anti slippage stability of three tower suspension bridge, but also the reasonable stiffness of the middle tower and the magnitude of rigidity of the whole bridge. First, the paper does some comparative studies about the relevant provisions of international norms, and then, summarizes the relevant load test results both at home and abroad. Finally, the paper draws the appropriate anti slippage safety factor for the most unfavorable load in accordance with international load standards, and discusses the rationality and feasibility of the friction coefficient of 0.2 between main cable and saddle. |
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Keywords: | three tower suspension bridge middle tower main cable saddle anti slippage safety factor load standard |
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