Many people look at the Canal Bridge and think about how to make such a large bridge deck cement. Slowly, people know that there are countless steel bars and prestressed anchors in the bridge deck. If the steel bars are the roots of the bridge, then the prestressed anchors must be the tendons, and the importance of nature is not necessary, you know How to choose the prestressed anchor correctly?
    (1) Heat treatment process and hardness index of anchor clip: The purpose of heat treatment is to improve the hardness of anchor parts. Due to the difference of heat treatment process, the difference in material selection is large, and the influence of the hardness of anchor clips increases during heat treatment. Big. The national standard GB/T14370 only specifies the ratio of the hardness of the anchor clips to be inspected and sampled, but the specific hardness index is not specified.
    (2) The technical content of the anchorage is very high, and the producer must have the qualification: the specifications and dimensions of the prestressed anchors of different varieties and the technical parameters such as the form, size, angle and tooth shape of the clip are determined by the design. The content is very high, it is not free to produce, it must be processed according to the design drawings, and the production of anchors must be qualified.
    (3) Selection of materials: The material is the source of the quality of prestressed anchors. The advantages and disadvantages of the materials have a great influence on the anchor clips, that is, the same steel number. The different materials of the manufacturers vary greatly, resulting in the production of anchors. The quality is unstable.
    In fact, when we choose prestressed anchors, we only need to look for good manufacturers, and the quality of high-quality manufacturers is naturally guaranteed.