1063

China: domestic carbon fiber suspenders are used in two bridges 

Domestic carbon fiber suspender developed by China Construction Eighth Engineering Bureau (CCEEB) was applied in the new bridges project across the Fenghe River in Qingdao Ocean Vitality Zone, Shandong province, China. There are two bridges in this project: Haikou Road Crossing Fenghe Bridge and Fenghuangshan Road Crossing Fenghe Bridge. The two bridges are the first to use domestic large-tow carbon fiber suspenders and 3000MPa high-strength carbon fiber suspenders in bridge engineering.

China: domestic carbon fiber suspenders are used in two bridges 
READING TIME

1 minute, 10 secondes

The total length of the Haikou Road Crossing Fenghe Bridge is 377 meters. The cable tower adopts a longitudinally inclined asymmetrical large-radius circular steel-concrete structure, and the cable tower cross-bridge is a symmetrical herringbone. All 12 suspenders of the auxiliary arch of the bridge are carbon fiber suspenders, and all of them are made of domestic 48K large tow carbon fiber. After the bridge is completed, it will become the first bridge project in China to apply the large-tow carbon fiber cable-anchor system, which will open up the application of domestic large-tow carbon fiber in the field of civil engineering, according to CCEEB. 

Fenghuangshan Road Crossing Fenghe Bridge has a total length of 350 meters. Two specifications of φ7-55 and φ7-73 carbon fiber suspenders are used in the bridge, and the strength level reaches 3000MPa. The bridge is the first bridge project in China to use 3000MPa high-strength carbon fiber suspenders, which further breaks through the performance limit of carbon fiber cables/suspenders used in bridge engineering, and expands the engineering application scenarios of high-performance carbon fiber composite materials, says CCEEB. 

Carbon fiber cables/suspenders are light, high-strength, corrosion-resistant, fatigue-resistant, and have good long-term load-holding properties. When used in bridge engineering, they can solve the problems of traditional steel cables/booms, such as heavy weight, poor durability, and short service life. According to CCEEB, it is beneficial to improve the durability of the bridge, reduce the maintenance cost of the whole life cycle, so as to help China attain its low carbon target.  

More information https://8bur.cscec.com