The support is an indispensable part of the steel structure space frame project. As the most basic bearing component of the space frame, what types of space frame supports are there?
The development of the space frame structure has reached a relatively mature stage. In general, there are the following five types of space frame supports:
- The space frame support converted from the basin bridge support. The structure of the upper bearing plate and the bottom basin of the bridge bearing is slightly adjusted to achieve the tensile and horizontal force resistance of the space frame The corner of this type of space frame is small, generally 0.02 radian, and the support contains a rubber part, so the service life should be clearly specified.
- The space frame support transformed from the spherical bridge support. The corner of this type of space frame support is relatively large, and the force-bearing surface is relatively uniform, and does not produce force necking. The upper and lower seat plates of the support are connected together by the chuck structure principle of the pressure cooker to realize the vertical tension resistance and horizontal force resistance of the space frame This type of space frame support is the mainstream product in the market.
- In summary, on the basis of the space framesupport, components such as leaf springs or polyurethane springs are added to achieve special requirements such as the horizontal stiffness of the support.
- The space frame support made by the principle of spherical hinge. The rotation angle of this kind of space frame support is generally 0.08 radian, and the resistance to horizontal force is relatively large. However, the friction coefficient of the spherical hinge surface is slightly larger, which should be noted.
- In recent years, the joint bearing support has also been developed. The rotation of the time node of the joint bearing is placed in the support. The rotation of this support is flexible, but the displacement is limited to a certain extent.
