Fastening strip and fastening network framework

Abstract

The invention relates to a blocking strip and a blocking net framework. The blocking strip comprises at least two strip sides, at least one of which is provided with convex teeth that are provided with breaches, the breaches are internally provided with agnails or barbs. The blocking net framework can be made by applying the blocking strip, and is formed by connecting keels, the blocking strip and a steel screen in a combining way. The keels are section steel parts and are arranged in parallel according to certain spacing; the blocking strips are vertical to the keels, arranged in parallel according to certain spacing and are fixed at one side or two sides of the keels to form a steel frame; the steel screen is distributed with a longitudinal convex rib as well as fish scales holes or meshes on the surface; the steel screen is attached to the outer surface of the steel frame, and is firmly and conveniently blocked and connected with the blocking strip. The invention solves the problems of composition and construction of a steel screen concrete member as well as the reinforcement of a steel screen concrete wall body. Meanwhile, the invention realizes large-scale and mechanized production, and is suitable for various building structural elements, especially for the structures of multilayer and high residential building wall bodies and floor slabs.

Description

technical field The invention relates to a steel component of a building structure. Background technique At present, the steel plate mesh with convex ribs is used to replace the formwork in concrete construction, and it is used in concrete construction to become formwork concrete. The general method is to arrange keels of a certain shape in parallel with each other and fix them on both sides of the keel. The connectors become the steel skeleton, and then the steel mesh is fixed on the keel with self-tapping screws or nails to become formwork concrete. Generally, this formwork concrete is mainly used for walls. Long-term engineering practice has proved that there are several problems in the structure of this installation formwork: (1) Fixing the expanded metal mesh with self-tapping screws or nails is not only a huge project, but also difficult to guarantee the reliability of the fixation. A large number of screws used to fix the expanded metal mesh, any one falling off w...

AI Technical Summary

Problems solved by technology

(1) Fixing the expanded metal mesh with self-tapping screws or nails is not only a huge project, but also difficult to guarantee the reliability of the fixation. A large number of screws used to fix the expanded metal mesh, any one falling off will cause trouble for the concrete construction, so it is difficult Ensure the smooth construction of concrete and the smoothness of the finished surface

Moreover, this process requires a hand drill or a nail gun, which requires high maintenance and use of tools. At the same time, the consumption of hardware and labor is large, and the cost is high, and these consumptions have no effect on the performance and structure of the final component.

(2) Fix the steel mesh directly on the keel. Since the height of the convex ribs of the steel mesh is limited and it is easy to squeeze during construction, the steel mesh is attached to the keel. When pouring concrete, due to the damping effect of the steel mesh on the flow of concrete , it is difficult to form a concrete protective layer, and in severe cases, the keel steel is exposed, which fails to achieve the expected purpose

(3) The traditional steel mesh concrete structure has relatively high vertical strength, but because the horizontal strength cannot be strengthened, the strength is too weak. For walls with complex corners, horizontal steel bars are arranged to strengthen the lateral strength. The structure is very complicated and the process is very troublesome.

Due to the above reasons, if the traditional steel mesh concrete technology is not innovated and improved, it is difficult to be used in multi-storey and high-rise load-bearing structures on a large scale.