Language: English
Pre-stress FRP Laminate Project
Effectively strengthened without unloading and blocking traffic.
Prestressed CFRP strengthening system is stipulated in the code that it can be effectively strengthened without unloading and blocking traffic. At the same time, the materials used have the characteristics of light weight, high strength and anti-aging of high strength fiber composite materials, and hardly increase the dead weight and volume of the original structure after reinforcement, which is a very ideal bridge reinforcement solution.
With the rapid economic growth and rapid increase of traffic volume in China, a large number of bridges are in high-load operation state. The concrete bridge structure under the long-term use environment (such as load, carbonization, freeze-thaw, chemical medium erosion, etc.), causes the structure cracking, the bridge bearing capacity reduces, the service life shortens, and even the collapse of the bridge. In order to meet the needs of China's future economic development, in order to save investment and sustainable development as the principle, in the bridge beam-slab structure function has not been completely lost, but the performance and safety of the situation is weakened, and its reinforcement and reinforcement treatment. It can improve its bearing capacity, restore its working performance and extend its normal service life.
Prestressed CFRP strengthening system is stipulated in the code that it can be effectively strengthened without unloading and blocking traffic. At the same time, the materials used have the characteristics of light weight, high strength and anti-aging of high strength fiber composite materials, and hardly increase the dead weight and volume of the original structure after reinforcement, which is a very ideal bridge reinforcement solution.
In recent years, HM prestressed FRP plate system is applied to bridge reinforcement cases:
