Characteristics and Types of Steel Structure Canopy

The steel structure canopy has a wide range of applications. It can be built between two buildings as a connecting channel between the two buildings, that is, the aisle canopy; or it can be built at the entrance and exit of the building as a door canopy; it can also be built above the top balcony, it is used to shelter from the rain or increase the usable area ; in addition, the steel structure canopy can also use its rigidity characteristics to prevent falling objects from high altitude, as a kind of safety protection building. With the rapid development of the construction industry and the wide application of steel structures, the construction types and characteristics of steel structure canopies require us to conduct more in-depth research and exploration.

1 Types and characteristics of steel structure canopy

1.1Classification of steel structure canopy

Steel itself has the characteristics of high strength, light weight, and high rigidity, so it can better realize its functional value for the construction and application of long-span, ultra-high, and ultra-heavy buildings. Because the material uniformity and isotropy of steel are very good, it can meet the requirements of ideal elastic body, and it is a kind of building material that is most in line with the basic assumptions of engineering mechanics. Therefore, the wide application of steel structure canopy has once again expanded the application range of steel structure. In the current construction market, the application of steel structure canopy mainly includes steel structure glass canopy, steel structure aluminum plate canopy, steel structure PC board canopy and all steel structure canopy.

1)The top of the steel structure glass canopy is tempered glass or laminated safety glass, which is a kind of safety glass; it is characterized by light weight, convenient construction, good safety and energy saving effects, and is widely used in The entrance and exit of the residential area or shopping mall, as a canopy at the door ;

2)Steel structure aluminum plate canopy, its construction structure is based on the steel structure as the main frame of the canopy, and the top is laid with aluminum plate ; compared with other types of canopy, the steel structure aluminum plate canopy will never rust, deform, and not afraid of falling from high altitude The impact of objects, the service life is greatly extended, therefore, has the highest cost performance. Steel structure aluminum canopy is widely used in airports, banks, stations, schools and other public projects;

3)Steel structure PC board canopy can be divided into two types: endurance board canopy and sunshine board canopy. They are lighter in weight and some of them have a warranty of more than ten years. However, in rainy weather, the impact of raindrops will produce loud noises, which are more suitable for During the construction of greenhouses, vegetable sheds, etc.;

4)The canopy with all-steel structure has relatively high reliability, good shock resistance and impact resistance, and can effectively improve the space utilization rate, but the material cost of the all-steel structure is relatively high.

1.2 General characteristics of steel structure canopy

Due to the characteristics of the steel itself, the steel structure canopy has the following characteristics:

1)Seismic characteristics

Most of the building structures of low-rise residential areas or villas are sloping roofs, using cold-formed steel structure as the main structure of the triangular roof truss, and then applying light steel structure to form a strong plate-rib structure system, which can effectively improve the earthquake resistance and horizontal load resistance of the steel structure canopy Ability.

2)Wind resistance characteristics

The steel structure canopy is light in weight and high in strength. Under the guarantee of overall rigidity, it can withstand the strong wind of about 60 meters per second, effectively ensuring the durability of the steel structure canopy.

3)Insulation characteristics

In the construction of greenhouses or building domes, steel structure canopies can effectively meet their thermal insulation requirements with thermal insulation materials.

4)Comfort Features

The application of steel structure is often matched with high-efficiency energy-saving system. In the application of aisle canopy, it has good breathing function and can adjust the air humidity in the aisle to ensure good ventilation.