On December 10th, the first 1,000-ton carbon fiber cable-stayed cable-stayed bridge hanging ceremony in China was successfully held in Liaocheng Xinghua Road across the TujiaoHe Bridge Project.
Liaocheng Xinghua Road Cross Tujiao River Bridge is located in the central urban area of Liaocheng City, Xinghua Road across the Tufa River, undertaken by the Eighth Bureau of China Construction First Construction Co., Ltd., after completion to connect Xinghua Road and Luanhe Road, belongs to the key people's livelihood projects in Liaocheng City. The bridge adopts a 2*100 meters double cable-faced steel arch tower low tower cable-stayed bridge. The main bridge motor vehicle bridge deck paving adopts UHPC, which belongs to the domestic advanced construction technology.
It is reported that the contract for the Xinghua Road Cross-Tujiao River Bridge was completed on June 18, 2022. This successful application, the sign project has successfully completed the construction of the cable system, as of now, the bridge deck paving has been basically completed, with the conditions for opening to traffic, the project is expected to be officially completed and opened to traffic on May 1 next year.
In recent years, China Construction Eighth Bureau has carried out research on the application technology of domestic carbon fiber in the field of civil engineering, and after scientific and technological research, a series of achievements have been made in the fields of advanced carbon fiber reinforcement technology, carbon fiber reinforced concrete and carbon fiber cable structure, and a number of demonstration projects have been landed.
It is understood that carbon fiber is a filamentous material with excellent performance, the density is only 1/5 to 1/4 of steel, but the strength is 7.6 to 15 times that of ordinary steel, and the lightweight and high-strength properties are very prominent.
Carbon fiber cable-stayed bridge cable for traffic is the first case in China, and the span of 38 meters is also the largest span of carbon fiber cable in the world. According to Academician Yue Qingrui, carbon fiber, as a high-performance structural material, was mainly used in aerospace in the past, and is a national strategic high-performance fiber composite material. In recent years, China has made great progress in applying it to civil engineering and building structures.
The carbon fiber cable applied to the Xinghua Road Bridge is composed of three parts: carbon fiber, resin matrix and fiber/resin interface, which is lightweight and high-strength, can reduce the weight of the structure, excellent durability and fatigue resistance, and low operation and maintenance costs during the service of the cable.
Shandong Liaocheng Xinghua Road Cross Tujiaohe Bridge is the first cable-stayed cable-stayed bridge in China to apply a thousand-ton carbon fiber cable drawing system, creating a number of firsts in the field of material engineering and civil engineering at home and abroad, which is of great significance to the scientific and technological progress of the industry.
The source of this article: Volkswagen Network, Dazhong Daily, etc