The prestressed carbon fiber plate reinforcement system is mainly composed of six main parts: carbon fiber plate, anchorage system (including support, anchor head, tension rod, etc.), carbon plate glue, tensioning machine (including jack, tool baffle, tool rod and high-strength nut, etc.) and batten. Its use principle is to use carbon fiber plate coated with carbon plate glue for prestressed tensioning of the components to repair the problems of the components, so that the carbon fiber plate and the components can form a unified whole and improve the bearing capacity of the components.

There are various reinforcement measures for buildings. Among the diversified reinforcement methods, the prestressed reinforcement method is often used in recent years. Do you know what the prestress is? How much do you know about the reinforcement construction technology used in high frequency?

1、 What is prestress? What are the characteristics?

In order to avoid cracks during the application of concrete buildings, it is necessary to use prestressed reinforcement technology to comprehensively strengthen and maintain the buildings after the completion of building construction, which can play a preventive role.

As a whole, there are two kinds of prestress: internal prestress and external prestress. They are different, but also have unique advantages and disadvantages. For the internal structure of concrete, there are significant differences between the internal and external prestressed structures. From structure to design and calculation to construction and later management, there are some differences in the aspects that need attention. In addition, from the preparation stage to the on-site construction and maintenance management, the emphasis needed to be put in place is also different. In order to have a good pre-stressed construction effect, key points should also be paid attention to in each link in order to win the completion.

2、 Is the frequency of prestressed reinforcement used now high?

Each kind of reinforcement measures has its own advantages and disadvantages, although compared with some reinforcement measures that have been active in China's construction field for decades, the use frequency of prestressed method is slightly lower. However, on the whole, because the prevention and control effect of harmful cracks is significant, in order to keep concrete buildings away from cracks, the current prestressed construction technology is also used more frequently.

When applying the house reinforcement measures, everyone will analyze and calculate one by one based on the project charge quotation, construction difficulty index, applicability of reinforcement methods, project completion quality and other aspects, so as to distinguish which reinforcement technology is more practical? In contrast, the prestressing method is one of the cost-effective reinforcement measures, so it is now frequently used.

It can also be clearly seen from the above characteristics that the prestressed reinforcement system is very suitable for the structural reinforcement of concrete structure slabs and beams, bridge slabs, tunnels, etc. The reason why the prestressed CFRP strengthening system is so widely used, in addition to its characteristics above, the system itself has many advantages.

Prestressed carbon fiber plate reinforcement system is a new product, which is especially used in bridge reinforcement. It solves the problem of strain lag of some carbon fiber plates and changes passive reinforcement into active reinforcement. This reinforcement method is also favored by more and more constructors, with a promising prospect.