Design and Optimization of Hanging Basket for Large Cantilever Construction of Wide Span Cable-Stayed Bridge
Based on the wide and long segment suspension pouring operation of the main cable-stayed bridge of Luojiang Bridge in Tongchuan District,Dazhou City,and in view of the structural characteristics of the cable-stayed bridge,the front support point hanging basket construction that can use the cable-stayed cable as the support point is selected.Due to the difficulty of balance control,linear control,and hanging basket walking control in wide cantilever operations,it has adverse effects on construction safety and quality.By designing and optimizing the load-bearing system,traction system,suspension system,walking system,anchoring system,and thrust system of the front support point hanging basket,such as optimizing the structural system to reduce the weight of the hanging basket system,the combination of adding rollers under the anchor beam and setting walking support wheels on the walking beam to reduce the frictional resistance of the hanging basket walking system,and setting thrust blocks to increase the stability of the hanging basket,thus ensuring construction safety and quality.The research results of this article can provide a reference for similar projects of long segment suspension pouring construction.
widthcable-stayed bridgebig cantileverhanging basketdesign and optimization
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