Carbon Fiber Reinforced Composites

The key technological innovations in carbon fiber composite cables revolve around super durability and extended service life. These innovations address application challenges such as difficult anchoring, poor fire resistance, low shear resistance, and brittle material, driving the industrial application of carbon fiber cables.

Xinghua Road Tuhai River Bridge, Liaocheng City

Engineering Applications

Applications

Products like carbon fiber stay cables, suspenders, geotechnical anchor cables, and foundation pit support cables offer advantages such as light weight, high strength, corrosion resistance, fatigue resistance, and resistance to temperature deformation.

Currently, they are applied in fields such as bridges, buildings, and slopes.

Addressing Key Technical Challenges

I. Addressing the challenges of heavy weight and limited span of steel cables

· Light weight, only 1/5 that of steel

· High strength, 1.5 times that of steel

· Effectively increases the ultimate span of suspension structures

Ultimate Span-Sag Relation between Steel Cable and Carbon Fiber Composite Cable

II. Addressing the inability of steel cables to meet high fatigue performance requirements

· Excellent fatigue performance, significantly enhancing the dynamic performance of structures

· With low dead weight, it effectively enhances the seismic performance of the structure

III. Addressing the issues of complex anti-corrosion coating processes and high cable replacement frequencies in steel cables

· Exceptional corrosion resistance extends service life and reduces cable replacement frequency

· Effectively enhances the durability and safety of bridges, reducing maintenance costs

IV. Solving the problem of structural deformation caused by temperature changes in steel cables

· The coefficient of thermal expansion is small, 1/20 that of steel

Product Advantages

Excellent anchorage performance

· Carbon fiber cable with a static load anchoring efficiency coefficient of ≥0.95

· Successfully passes 10 million fatigue tests, with an upper limit of 45%Fptk and a stress amplitude of 200MPa

Excellent fireproof performance

· The carbon fiber cable uses a separate fireproof structure, maintaining surface temperature at ≤180°C for 30 minutes in 1100°C ambient conditions

Excellent dynamic and static water tightness

· Dynamic water tightness meets JT/T775-2016 standards after 1000 cycles of 25mrad deflection pendulum load and 42 days of submersion at 3m depth

· After 2 million cycles of tensile bending fatigue loading and soaking in 3.1m of water for 98 hours, the static watertight performance meets the JT/T775-2016 standard.

Haikou Road across Fenghe River Bridge, Qingdao

Fenghuangshan Road across Fenghe River Bridge, Qingdao

Sichuan-Tibet Railway Slope Engineering

Air-supported Membrane Structure of Changchun-Shenzhen Expressway Project

Yangyi Bridge, Xi'an