Do you know why the subway runs safely and quickly? One of the important reasons is the rear belled mechanical anchor! This anchor bolt is widely used in subway construction projects, and its ability to fix train tracks and concrete is very strong.
There are many advantages of rear belled mechanical anchors! It is extremely fatigue resistant and remains intact after 2 million fatigue tests. Moreover, it is also very resistant to earthquakes, which can resist vibrations and shock loads, so you can feel safer when riding the subway.
In addition, the construction of the rear belled mechanical anchor bolt is also very convenient. It uses the reaming wall at the bottom of the hole and the lock key tangent of the mechanical anchor bolt to form the lock key effect through physical and mechanical means, so as to complete the anchoring effect. Different from the general adhesive type of chemical anchor, the rear expanded mechanical anchor can be suitable for many special environments that are not suitable for planting reinforcement or not suitable for using chemical anchors, and there are not too many requirements for the temperature and environment of construction, so the construction period will be much faster.
Another important advantage is that the rear flared mechanical anchor has passed the ultimate fire resistance test and can remain stable in the event of a fire. Its screw raw materials are made of steel produced by regular large steel mills, while some of the poorer quality ones on the market are made of old steel secondary refurnace.
The construction process of the rear belled mechanical anchor bolt is also very simple. Firstly, use an ordinary percussion drill to drill according to the specifications and models of the anchor bolt to be installed, and determine the diameter and depth of the drilling; Then, the reaming bit is used for secondary reaming; Next, tighten the individual components to ensure that they do not loosen; Finally, insert the anchor bolt into the forming hole, and use the fixture to clamp the bolt to ensure that the screw does not rotate, and use a torque wrench to tighten the nut; Finally, remove the fixture, loosen the nut, install the connector to be fixed, and use a torque wrench to apply torque according to the requirements of the specifications and models of the anchor bolt, and the installation is completed.
Shibang has been deeply involved in the production and research and development of building reinforcement materials for many years, shouldering the important task of creating a national reinforcement brand. On the road of keeping up with the development of the times, we always adhere to the foundation of product quality, and constantly optimize and update.
The Shibang rear belled mechanical anchor bolt has not only passed the 2 million times fatigue resistance test and 120min limit fire resistance test, but also has been applied in many rail transit projects across the country, such as Chengdu Rail Transit Metro Line 8 and Xi'an Metro Line 14. They are all choosing Shibang, which is not only a recognition of the Shibang brand, but also a trust in the quality of the products produced by Shibang.