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Zhang G.Z.,Wuhan Harbor Engineering Design and Research Institute Co. | Zhang G.Z.,Key Laboratory of Large span Bridge Construction Technology | Liu K.X.,Wuhan Harbor Engineering Design and Research Institute Co. | Liu K.X.,Key Laboratory of Large span Bridge Construction Technology | And 7 more authors.
Wuhan Ligong Daxue Xuebao/Journal of Wuhan University of Technology | Year: 2010

According to the chloride corrosion environment, service life prediction model of concrete structure of sea-crossing bridge was built using modified Fick's second law and the whole probability calculation method, which was suitable for China. Furthermore, a visual service life prediction program of concrete structure was developed by optimized Monte Carlo method. Meanwhile, Life 365 program was compared, indicating reliability of the prediction program. Finally, the validity of prediction model was verified in JinTang Bridge of Zhoushan Island Mainland Linkage Project. Source


Deng B.,Wuhan Harbor Engineering Design and Research Institute Co. | Deng B.,Key Laboratory of Large span Bridge Construction Technology | Tu L.Q.,Wuhan Harbor Engineering Design and Research Institute Co. | Tu L.Q.,Key Laboratory of Large span Bridge Construction Technology | And 5 more authors.
Wuhan Ligong Daxue Xuebao/Journal of Wuhan University of Technology | Year: 2010

To improve the quality of the steel-concrete composite segment of the box girder, to ensure the compactness of concrete to avoid debonding and to enhance the fatigue strength of concrete are critical to the concrete preparation for such site. Furthermore, the coordination ability to deformation between steel and concrete is also important because of great difference of the elastic modulus between them. Concrete for the steel-concrete composite segment with high fluidity, excellent crack resistance and low shrinkage was prepared by adding efficient poly-carboxylic water-reducing agent, high quality fly ash and expansion agent to it. The quality of the concrete of the half partial testing block showed that the optimal mix proportion of polypropylene fiber reinforced concrete had achieved expected effect, ensured high quality, thus meeting the requirements of construction. Source

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