Bolt ball truss is a common spatial structure widely used in large-span buildings such as sports halls, exhibition halls, airport terminals, etc. It consists of bolted ball nodes and steel pipe members, which are connected to the ball nodes through high-strength bolts to form a stable spatial grid structure.
Main features:
High strength bolt connection: The bolt ball joint is connected to the steel pipe members by high-strength bolts, ensuring the stability and load-bearing capacity of the structure.
Space grid structure: Bolt ball grid is a type of space grid structure with good spatial stiffness and stability, capable of withstanding large loads.
Lightweight and high-strength: Due to the use of steel pipes and bolted ball joints, the structure has a relatively light weight but a high load-bearing capacity.
Convenient construction: Bolt ball grid can be prefabricated in the factory, assembled on site, with fast construction speed and easy installation.
Beautiful and elegant: The bolt ball grid structure is simple and aesthetically pleasing, suitable for the roofs and walls of large-span buildings.
Application areas:
Sports venues: such as basketball courts, swimming pools, badminton courts, etc.
Exhibition halls: such as museums, exhibition centers, etc.
Airport terminal building: a large-span roof structure.
Industrial plant: large-span roof and wall structures.
Other large-span buildings, such as theaters, conference centers, etc.
Design points:
Node design: The design of bolted ball nodes needs to consider the stress situation of the members to ensure the strength and stiffness of the nodes.
Rod design: The cross-sectional dimensions and wall thickness of steel pipe rods need to be reasonably designed according to the load and span.
Overall stability: It is necessary to consider the overall stability of the structure to prevent local instability or overall instability.
Anti corrosion treatment: Due to the susceptibility of steel structures to corrosion, anti-corrosion treatment is required, such as painting with anti rust paint or hot-dip galvanizing.
Construction process:
Factory prefabrication: prefabricating bolt ball joints and steel pipe members in the factory.
On site assembly: Transport prefabricated components to the site for assembly.
Bolt tightening: Use high-strength bolts to connect the rod to the ball joint and tighten it according to the design requirements.
Quality inspection: Check the tightness of bolts and the overall stability of the structure.
Anti corrosion treatment: Apply anti-corrosion treatment to the structure to ensure its long-term durability.
The bolted sphere truss has become one of the indispensable structural forms in modern large-span buildings due to its excellent performance and wide application fields.
