Arch ribs in long-span, concrete-filled steel tube arch bridges are fabricated in segments and assembled on site via cable-stayed buckle-cable hoisting systems. The hoisting process involves a high risk, and monitoring systems have mainly been built to monitor the state of stress or deformation. However, instrumentation for stress monitoring, such as through-hole sensors, is expensive and has installation problems. Overreliance on instruments also leads to a disregard for the impact of environmental and construction factors on the actual state. To overcome these limitations, a cost-effective instrumentation system was developed, and a real-time monitoring program was implemented. In addition, a cable force correction method was proposed to increase the calculation accuracy by incorporating environmental and construction factors. The temperature difference is the controlling factor for the cable force; a value of 7.9°C yields a change in the cable force of 50.1 kN, which accounts for 21.1% of the total cable force. By incorporating the reverse friction at the saddles and the effect of temperature, a new correction equation for the cable force was proposed, in which the overall deviation between the measured results and the calculated results was reduced to 2%, providing a template for cable force evaluation in the engineering community.


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    Title :

    Cable Force Correction Method for Cable-Stayed Buckle-Cable Hoisting Incorporating Environmental and Construction Factors


    Additional title:

    Transportation Research Record: Journal of the Transportation Research Board


    Contributors:
    Gao, Lei (author) / Wang, Wenquan (author) / Li, Guanghua (author) / Song, Junxi (author) / Wei, Qian (author)


    Publication date :

    2025-01-01




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    English



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