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| Analysis of Temperature Effect on Control of Construction of Cable-stayed Bridge |
| LI Ke-yin1, JI Xiao-jun2 |
| 1.The Third Survey and Design Institute of China Railway, Tianjin 300251, China; 2. Anhui Province Supervision Station of Engineering Quality for Transportation, Hefei , Anhui 230011, China |
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Abstract Research purposes: The purposes were to make research on the effect on control of construction of cable-stayed bridge by temperature field.
Research methods: The research was made on the features, types and computing method for the temperature field of cable-stayed bridge in this paper. In combination with the construction practice of Yunyang Yangtze Bridge, the space model was established by adopting finite-element method and the effect of temperature was calculated with model, and calculation result was analyzed and compared with measured value.
Research results: The regularity of internal temperature field of structure was analyzed in this paper. The result showed uneven temperature difference of sunshine and so on had large effect on the structure of cable-stayed bridge, and proved the result obtained by this method was rather identical with the practice.
Research conclusions: The temperature effect on control of construction of cable-stayed bridge could be calculated correctly by the method presented in this paper, which was helpful for adjusting the line figuration and stress of main girder so as to make them meeting the requirement of reliability.
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Received: 02 June 2006
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2006, Vol. 23 
