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New Precast Concrete Segmental High-Speed Railway Bridges from Lianyungang to Xuzhou: Donghai Viaduct and Daxu Viaduct

 New Precast Concrete Segmental High-Speed Railway Bridges from Lianyungang to Xuzhou: Donghai Viaduct and Daxu Viaduct
Author(s): , ,
Presented at IABSE Symposium: Construction’s Role for a World in Emergency, Manchester, United Kingdom, 10-14 April 2024, published in , pp. 1083-1091
DOI: 10.2749/manchester.2024.1083
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Donghai Viaduct and Daxu Viaduct as parts of Lianyungang to Xuzhou high-speed railway bridge, are both the first high-speed railway continuous girder bridges using short-line precast segmental meth...
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Bibliographic Details

Author(s): (Sun Engineering Consultants International, Inc., Guangzhou, China)
(Sun Engineering Consultants International, Inc., Guangzhou, China)
(Sun Engineering Consultants International, Inc., Guangzhou, China)
Medium: conference paper
Language(s): English
Conference: IABSE Symposium: Construction’s Role for a World in Emergency, Manchester, United Kingdom, 10-14 April 2024
Published in:
Page(s): 1083-1091 Total no. of pages: 9
Page(s): 1083-1091
Total no. of pages: 9
DOI: 10.2749/manchester.2024.1083
Abstract:

Donghai Viaduct and Daxu Viaduct as parts of Lianyungang to Xuzhou high-speed railway bridge, are both the first high-speed railway continuous girder bridges using short-line precast segmental method in China. A big achievement of the project is realizing a high prefabricated proportion of 99.1% and 98.8% respectively for main bodies of both viaducts.

The Accelerated Bridge Construction with the precast segmental bridge technology, using the short- line match casting method and balanced cantilever construction method without closure pour at end spans in the Lianxu project, has built up a good basis for future projects.

This paper introduces several key factors during the construction process of Donghai Viaduct and Daxu Viaduct, including precast yards, construction method, geometry control and BIM, providing more choices for Accelerated Bridge Construction.

Keywords:
prefabrication high-speed railway accelerated bridge construction geometry control Precast segmental bridge precast yard

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