平南三桥建设创新技术

IABSE Congress, Nanjing 2022: Bridges and Structures: Connection, Integration and Harmonisation Pub Date : 1900-01-01 DOI:10.2749/nanjing.2022.2055

B. Tu, Jielian Zheng

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引用次数: 0

摘要

平南三桥主桥为半贯通钢管混凝土拱桥，有效跨度560米，为世界最大。由于跨度的重大突破和施工现场的不利环境特点，平南三桥在施工中遇到了许多技术难题。据此，对大跨度钢管混凝土拱桥的设计、施工、材料和管理等方面提出了系统的创新技术，取得了相当显著的技术经济效益。同时，考虑到所提出的技术解决了特大拱桥特别是钢管混凝土拱桥的几个关键通用性瓶颈，对今后其他类似桥梁也有很好的参考价值。

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Innovative Technologies for Construction of the Pingnan Third Bridge

The main bridge of the Pingnan Third Bridge is a half-through concrete-filled steel tubular (CFST) arch bridge with a world-largest effective span of 560 m. Due to the significant breakthrough in span and the adverse environmental features of construction site, many technological difficulties were encountered in construction of the Pingnan Third Bridge. Accordingly, systematic innovative technologies on design, construction, material and management of large-span CFST arch bridges were proposed, and fairly remarkable technological and economic benefits were achieved in this bridge. Meanwhile, considering the proposed technologies have solved several key general bottlenecks of extra-large arch bridges, especially CFST arch bridges, the technologies can also be good references for other similar bridges in the future.

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IABSE Congress, Nanjing 2022: Bridges and Structures: Connection, Integration and Harmonisation

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