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When Steel Pipes Used In Concrete Filled Steel Tubular Arch Bridges,about These You Should Know.

Shannxi Shew-E Steel Pipe Co.,Ltd | Updated: Jun 09, 2017

When steel pipes used in Concrete filled steel tubular arch bridges,about these you should know.



In 1990,the first Concrete filled steel tubular (CFST) arch bridge was built in China. CFST arch bridge is the special design in China which using steel tube build arch rib then pour concrete in it.

CFST structure is one of steel-concrete composite structures. It has better strength than those of masonry or reinforced concrete and can provide larger stiffness than steel tubes. The tubular arch itself can be erected with lighter self-weight and outstanding stiffness. Then concrete can be filled into the tubes to form CFST structures. Therefore, CFST arch bridges can meet the requirements of economy, material saving, easy erection and high load carrying capacity. With the trend of increasing the use of steel material and decreasing the labor in bridge construction due to the rapid development of economy, CFST arch bridge became a good alternative to achieve a kind of balance between reinforced concrete arch bridges and steel arch bridges. In addition, it has a more pleasing appearance.

BOSIDENG Yangtze River bridge,is the largest CFST(concrete filled steel tube) arch in the world with 530m span. Also the 3rd largest arch,just behind CHAOTIANMEN bridge and LUPU bridge.Located in HEJIANG county,Luzhou,Sichuan.

Then the concrete-filled steel-tube arch bridges was constructing,which type of steel pipe was appropriate?

 BOSIDENG Yangtze River bridge.jpg

JIS G3444 pipe was widely used in Concrete filled steel tubular arch bridges With it’s high tensile strength, smooth internal finish and hardness.This Japanese industrial standard specifies the carbon steel tubes used for civil engineering,architecture,steel bridge,steel towers,scaffoldings, and other structure.G3444 carbon steel pipe for general structures was used mostly. 


As suppliers of JIS G3444 carbon steel pipe,SHEW-E STEEL PIPE specializes in JIS G3444 Materials STK400 and STK490. we also can provide customers with products based on their specified technical requirements.please Email to :info@shew-esteelpipe.com to learn more!


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