Matters needing attention in the manufacture of steel structure canopy

The steel awning is built between two buildings, connecting the two buildings as an aisle awning, or above the awning at the entrance or exit of the building or the top balcony to prevent falling objects. So what are the precautions for making steel awnings?

Matters needing attention in the manufacture of steel structure canopy

1, the profile selection of steel structure canopy conforms to national standards.

2. The construction machines and tools used to install the steel structure canopy must undergo strict inspection before use.

3. Oxidation, electrophoresis, electrostatic powder spraying, fluorocarbon spraying and wood grain thermal transfer can be used on the profile surface.

4. When welding on site, a fire bucket should be added below the weldment.

5. Anchorage of steel structure is the main technical problem in the construction of steel structure canopy at the door head.

6. Construction personnel should be equipped with necessary labor protection articles to prevent people and objects from falling. Prevent solvent poisoning of sealing materials in engineering use, and keep the solvent well to prevent fire.

7, full-time security officer to carry out patrol supervision and inspection.

Types of steel structure canopy

1, glass canopy of steel structure

The top of the steel structure glass canopy is tempered glass or laminated safety glass, both of which are safety glass.

2. Aluminum canopy of steel structure

The main dragon skeleton of steel-bonded aluminum canopy is mainly steel structure, and the top is aluminum plate. Advantages of aluminum canopy: aluminum alloy will never rust and deform, so there is no need to worry about falling objects damaging aluminum canopy. The aluminum awning with steel structure has the highest cost performance and the longest service life, and is suitable for airports, banks, large supermarkets, government projects, campuses, hotels and villas.

3, steel structure PC board canopy PC

Board awnings can be divided into (resistance board awnings, sun visor awnings). This kind of rain pole is characterized by light weight, which can be used for more than ten years and has a warranty. It is especially suitable for greenhouses and vegetable greenhouses. Noise when it rains is one of his great shortcomings.

Causes and maintenance of rain leakage in steel structure canopy

Generally speaking, there are two main reasons for steel canopy leakage. One is caused by human factors, which can be avoided in construction, and the other is caused by the characteristics of the material itself, which is generally unavoidable and can only be maintained afterwards.

As far as human factors are concerned, the leakage of rain from the steel structure canopy is nothing more than unreasonable design, irregular construction and installation, and careless operation of construction personnel. The unreasonable design is mainly manifested in the following aspects: for example, the roof winding is too large or the slope is too slow, the slow water flow leads to water accumulation, the diameter of the downpipe is not satisfied, the panel selection is improper, and the design of the edge-closing and gutter joints is unreasonable; In terms of construction and installation, improper joint treatment, sloppy joints, inadequate waterproof materials, lax sealing glue and careless screw installation will all lead to roof cracking and rain leakage.

There is also the hidden danger of water leakage caused by material characteristics, such as the large thermal conductivity of the metal plate itself. When the outside temperature changes greatly, the material shrinks and deforms due to the temperature change, which leads to a large displacement of the interface and a hidden danger of water leakage; In the steel structure system, the structure itself is prone to elastic deformation under external forces such as temperature change, wind load and snow load. , the joint displacement, there is a hidden danger of water leakage.

In order to solve the problem of rain leakage of steel structure canopy, various factors such as roof slope and slab type should be considered comprehensively in the design process to obtain the best scheme. In the process of construction, strictly abide by the construction specifications, be careful and meticulous, and reduce roof cracks; Fully consider the climate characteristics of the area where the building is located, and adopt waterproof measures and materials suitable for this area; According to the characteristics of the material, a layer of sealant tape with strong adhesion, good follow-up and excellent weather resistance can be laid on the roof as a supporting waterproof material for metal roof panels.