Abstract：The concrete arch bridge is a natural and appropriate structural solution, aesthetically pleasing and easily integrated into the environment, especially in mountainous and island areas. However, construction difficulty and cost will increase with heavy self-weight when the span enlarges. A potential solution is to use a composite box arch ring with steel web-concrete flange. Taking Wanzhou Yangtze River Bridge (the longest concrete arch bridge in the world with a main span of 420 m) as a prototype, trial designs of a composite box arch with steel webs (including corrugated steel webs and plain steel webs) and concrete flanges were carried out. Comparison of quantities and structural behaviors of the prototype concrete arch with the two trial designed composite arch was presented. It is shown that the self-weight of the composite arch can reduce about 28% and the structures can meet the design requirements, therefore it is possible to use the two composite arches in long span arch bridges.
?avor Z, Bleiziffer J. Longspan concrete arch bridges of Europe. In: Proceedings of Chinese-Croatian Joint Colloquium on Long Span ArchBridges, Structural Engineering Conference, Zagreb, Brijuni Islands. 2008, 171―180
Wei Jiangang, Chen Baochun. Applicationand research advancement of long span concrete arch bridges abroad. World Bridges, 2009, (2): 4―8 (in Chinese)
Chen B C, Gao J, Ye L. Long span concrete arch bridges in China.In: Proceedings of the Fib Symposium of Developmentfor Concrete Structures-Stimulators, Structural Engineering Conference,Dubrovnik, Zagreb. 2007, 69―76
Japan Society of CivilEngineers. Design and Construction of LongSpan Concrete Arch Bridges-the 600?m Class Span. Tokyo: Japan Society of CivilEngineers, 2003
Candrlic V, Bleiziffer J, Mandic A. Bakar bridge in reactivepower concrete. In: Proceedings of theThird International Conference on Arch Bridge, Paris. 2001, 695―700
Candrlic V, Radic J, Gukov I. Research of concrete arch bridges upto 1000?m in span. In: Proceedings of theFourth International Conference on Arch Bridge, Barcelona. 2004, 538―547
Blais P Y, Couture M. Precast,prestressed pedestrian bridge-world’s first reactive powderconcrete structure. PCI Journal, 1999, 44(5): 60―71
Huh S-B, Byun Y-J, Sun Y. Pedstrain arch bridge, Seol, Korea. Structural Engineering International. 2005, 15(1): 32―34 doi: 10.2749/101686605777963378
Chen B C, Wang Y Y. Concretearch with corrugated web-a new approach for super-long span arch bridge. In: Proceedings of the Fifth International Conferenceon Arch Bridge, Madeira. 2007, 807―814
Chen B C. Trial design research on concrete arch bridge with corrugatedsteel webs. In: Proceedings of Creating and Renewing UrbanStructures-IABSE Congress, Chicago. 2008, 550―551
Yan G, Yang Z. Wanxian Yangtzebridge, China. Structural Engineering International, 1997, 7(3): 164―166 doi: 10.2749/101686697780494842
Xie B Z. Wanxian long span concrete arch bridge over Yangtze Riverin China. In: Proceedings of Chinese-CroatianJoint Colloquium on Long Span Arch Bridges, Structural EngineeringConference, Zagreb, Brijuni Islands. 2008, 181―188
GB 50017-2003. Code for Designof Steel Structures. Beijing: Ministry of Construction of the People’s Republicof China, 2003 (in Chinese)
Wang Yuanyang. Trial design of concrete boxed arch with corrugated steelwebs. Dissertation for the Master Degree.Fuzhou: Fuzhou University, 2007 (in Chinese)
JTJ D21-89. Code for Designof Highway Reinforced Concrete and Prestressed Concrete Bridges andCulverts. Beijing: Ministry of Communication of the People’sRepublic of China, 1989 (in Chinese)
JTG D61-2005. Code for Designof Highway Masonry Bridges and Culverts. Beijing: Ministry of Communicationof the People’s Republic of China, 2005 (in Chinese)
