原文：http://shenzhen.chinacompositesexpo.com/en/news-detail-92-16572.htmlOn September 9, the highly anticipated Changtai Yangtze River Bridge—the world's largest-span cable-stayed bridge—officially opened to traffic. Serving as a new transportation artery connecting Changzhou and Taizhou in Jiangsu Province, the bridge has reduced travel time between the two cities from 1 hour and 20 minutes to approximately 20 minutes, significantly enhancing cross-river transportation efficiency in the Yangtze River Delta and accelerating regional integration.


Zhongfu Shenying Carbon Fiber Co., Ltd. (Zhongfu Shenying) served as the sole carbon fiber supplier for this mega-project, providing the core material—SYT49S-24K T700-grade high-performance carbon fiber—for the groundbreaking TARS (Temperature Adaptive Restraint System). This carbon fiber exhibits exceptional properties, including high elongation, low dispersion, minimal fuzz formation, and high winding efficiency, ensuring the structural safety and longevity of the bridge.

Stretching across the Yangtze River like a "steel giant," the Changtai Yangtze River Bridge incorporates 28 horizontal cables made of Zhongfu Shenying’s carbon fiber. These cables, with a tensile strength of 2,600 MPa and a single length of 559 meters, form the world’s first Temperature Adaptive Restraint System (TARS). This system enables longitudinal restraint of the main girder and low-level transmission of longitudinal forces, significantly reducing the longitudinal load effects on the tower-girder structure. The project sets a global engineering record for the longest carbon fiber cables and the largest-scale application of such materials, marking a major breakthrough in structural materials for long-span bridges.


The carbon fiber-reinforced polymer (CFRP) cables not only effectively restrict longitudinal displacement of the main girder but also allow adaptive release of deformation under temperature variations, significantly reducing structural stress and enhancing the bridge’s safety and durability.

The successful application of carbon fiber cables in this national-level mega-project not only demonstrates the technical strength of domestically produced high-performance carbon fiber but also represents a milestone in civil engineering. It opens new prospects for the widespread use of carbon fiber composites in infrastructure such as bridges and buildings. 文章来源：http://shenzhen.chinacompositesexpo.com/en/news-detail-92-16572.html