Long span steel structure is mostly used in large-span factory buildings, aircraft assembly workshops, hangars, large warehouses, etc. According to your requirements, we can provide steel structure design, processing and manufacturing. In addition, if you provide design drawings, we can process and manufacture them according to the drawings.
Common Applications of Long Span Steel Structures
In some industrial and civil buildings, due to functional requirements, it must be a large space and no columns are allowed in the middle.
In industrial buildings, the long span steel framing structure is used for aircraft assembly workshops, hangars and other large-span industrial plants.
In civil buildings, the large span steel structure is mainly used for theaters, stadiums, exhibition halls, conference halls, airports and other large public buildings.
The following are some long span steel structures examples for your reference:
Hangar in Niger
Project introduction: The total construction area is 2452 square meters, the span is 40m, the eaves height is 8m, the ridge height is 9m, and the steel consumption is 115 tons.
Steel Structure Auto Parts Workshop in China
Project introduction: The plant has a construction area of 12,000 square meters and a maximum span of 40m. It is a portal steel frame structure, mainly used for auto parts processing.
Stadium Steel Structure in Aruba
Project introduction: It is a pipe truss structure with a span of 127m, eaves height of 9.14m, and steel consumption of 62.357 tons.
Different Types of Long Span Steel Structure for Your Project
We provide a variety of long span steel structure design, processing and production for different projects, including grid structure, steel structure workshops and warehouses, etc.
Large-span Steel Grid Structure
Features of Grid Structure
The grid steel structure is a widely used long span roof structure. It has the following salient features:
- The long span steel structure grid has strong integrity, good stability, high spatial rigidity and good seismic performance.
- It can be assembled into a large-span building with small rods, effectively using the building space.
- The rod specifications are uniform, suitable for industrial production.
- It can adapt to a variety of flat shapes such as round, square, polygon, etc.
Selection of Rods And Node Structure
Material: Q235, Q345, Q390, Q420, etc.
Section form: round steel tube, square steel tube, angle steel and combined section.
Section selection: according to the internal force of the rod, the section size is determined by the axially stressed member. The selected section specifications should not be too many.
Node types and characteristics
The characteristics of the node: reliable work, simple structure, convenient processing and installation, saving materials.
Internal nodes: steel plate joints, welded ball joints, bolted ball joints, etc.
External nodes: support nodes, suspension nodes, roof nodes, etc.
Anti-corrosion And Fire Prevention Measures of Grid Structure
The anti-corrosion of the grid structure
The rods and nodes of the grid structure are made of steel, and the biggest disadvantage of steel is that it is easy to corrode. Therefore, effective anti-corrosion measures must be taken.
There are three anti-corrosion methods for the large span grid structure:
- Use anti-corrosion steel
- Protect the steel surface with metal coating
- Coat the surface of the steel with a non-metallic protective layer
The fire prevention of the grid structure
Most of the grid structures are used as building roofs to be applied in various large-span buildings. The fire protection measures for the grid structure include: spraying fireproof paint, and water spray system for protection.
Long Span Steel Structure Industrial Building
For large-span industrial buildings, including assembly workshops, maintenance workshops, large warehouses, etc., steel structures are an economical choice.
Features of Industrial Steel Structure Buildings
- Simple construction, low cost and short construction period
The large span steel structure building is mostly single-story building, with light steel columns, beams or reinforced concrete columns as the main load-bearing members. so the construction requirements are far lower than other types of buildings. In addition, its components are light in weight and can be prefabricated in large quantities, so the overall budget cost is relatively low, construction is quick, and the construction period is short.
- Long span and large space
With large bay design, the indoor space can be divided into multiple forms to meet the diversified use requirements.
- Durable and easy to repair
Steel structure factory buildings can effectively resist the harsh natural environment, and are far superior to traditional buildings in terms of earthquake resistance and fire resistance. It is easy to maintain and repair.
The wall adopts light-weight energy-saving C-shaped steel, square steel, and sandwich panel, which has good thermal insulation performance and good seismic resistance.
- Environmental friendly
When steel structure buildings are demolished, most of the materials can be reused or degraded without polluting the environment.
Learn About the Components
Main components: steel column, steel beam, wind-resistant column, crane runway beam, etc.
The steel column can be a H-shaped steel column with uniform cross-section or a variable cross-section. It is easy to manufacture, safe and reliable. The main material is Q235B or Q345B.
The commonly used welded composite steel beam is an I-shaped section composed of upper and lower flange plates and webs, and the main material is Q235B or Q345B.
The wind-resistant column is the structural component of the gable wall, and its function is mainly to transmit the wind load of the gable wall. The upper part is transmitted to the entire steel frame structure through the connection with the steel beam, and the lower part is transmitted to the foundation through the connection with the foundation.
Crane beam is used to support the overhead crane track, which is generally installed on the upper part of the factory building.
Secondary components: purlins, braces, supports, tie rods, etc.
Roof and wall purlins are used to support roof and wall panels. It can be C-shaped steel and Z-shaped steel.
Straight brace is used to maintain the lateral stability of the purlins, and diagonal brace is placed between the roof purlins or wall purlins to increase the lateral rigidity of the purlins.
Horizontal supports are horizontal trusses arranged longitudinally in the roof truss plane to ensure the overall stability of the roof truss. The vertical support is to ensure the lateral stability of the roof truss and transmit the longitudinal horizontal force. In addition, it transmits the longitudinal wind load to the roof truss pillars.
Enclosure material: color steel tile and color steel sandwich panel.
The color steel tile is a profiled panel that is made of color coated steel plates and is rolled and cold-formed into various wave shapes. It is suitable for the roof, wall and interior and exterior wall decoration of industrial steel structure factories.
The color steel sandwich panel is made by pressing the upper and lower layers of metal panels and the middle layer of polymer thermal insulation core.
Long span structure building usually refers to a structure with a span of more than 30m. Common large span building structures include grid structure, steel shell structure, truss structure, etc.
- Aircraft assembly workshops
- Large-span industrial buildings
- Exhibition halls
In some buildings, due to the requirements of various functions, there must be a large space and no columns are allowed in the middle. For example, it is necessary to build a large building space to hold large-scale cultural and sports performances, hold grand expositions, accommodate large aircraft, etc.
The cost of large span steel structure building is determined by many factors, including design plan, technical requirements, steel price, etc. First of all, we need to design reasonable drawings according to your needs, including the materials used, or you provide design drawings. Then we can calculate the specific cost according to the drawings.
Yes, we have a professional after-sales service team to provide customers with services such as installation, staff training, technical consultation, and spare parts supply.
In addition, we have overseas offices in the Philippines, Malaysia, Indonesia, Pakistan and Uzbekistan to provide customers with faster and better services!
Contact Us For A Quotation!
If you need us to provide a quotation for long span steel structure design, production and installation, please feel free to contact us and provide the following basic information:
- Uses of large-span steel structure
- Dimension of the steel structure
- Whether to install a crane in the factory. If yes, please inform the specific model, load capacity,lifting height and work duty of the crane.
- Requirements for roof panels, doors and windows
- Other requirements. For example, for special areas, it is necessary to consider the earthquake resistance level, the maximum wind speed, the maximum rainfall, the maximum snowfall, and so on.
We provide a full range of services for your project, including professional engineers to provide design solutions and quotations according to your needs, steel structure processing and production in the factory, and after-sales service team to provide timely and high-quality after-sales service. Contact us now to get the latest long span steel structure price!