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悬索桥的主缆多位于桥梁两侧,与引桥和锚碇空间交叉布置,主缆架设前猫道的设计又决定了引桥和锚碇施工前必须提供足够的作业空间,使得锚碇和引桥施工显得尤为复杂,同时也要求工程建设者必须采取有效措施,合理避让并解决施工预留等带来的安全质量隐患。以驸马长江大桥主缆架设施工为例,详细介绍了其与锚碇前锚室、边跨悬浇主梁交叉施工技术和应用效果,为类似工程前期策划提供技术保证,进一步实现质量提高。
The main cables of the suspension bridge are mostly located on both sides of the bridge and are arranged crosswise to the approach bridge and anchorage space. The design of the front catwalk of the main cable truss also determines that sufficient work space must be provided before the approach bridge and anchor bridge are constructed so that the anchorage and the approach bridge are constructed Particularly complicated, but also requires project builders must take effective measures to reasonably avoid and solve the safety and quality problems caused by the construction reserve. Taking the construction of the main cable truss of the Changma Bridge over the Changjiang River as an example, the cross-over construction techniques and application effects of the main cable truss with the anchorage chamber and the side suspension over the anchorage are introduced in detail. This can provide technical assurance for the pre-construction planning of similar projects and further improve the quality.