In steel structural system,The foundation Connection play a very important role in strength and stability. Normally we use two types foundation connections. One is fixed foundation connection and the other one is Joint foundation connection.
1 Joint foundation connection 2 Fixed foundation connection
| Terms | Joint foundation connection | Fixed Foundation connection |
| Axial force | Yes | Yes |
| Bending moment | No | Yes |
| Shearing force | Yes | Yes |
|
Anchor bolt location |
Inside of the H beam flange | Out side of the H beam flange |
| Foundation | Small | Bigger |
| Subject range | Light warehouse/ shed etc. | Heavy workshop with crane; High rise building; warehouse with mezzanine etc. |
| Cost saving | Foundation cost saving | Steel cost saving |
As you see the above sheet. The joint foundation connection do not load the bending moment. The bending moment must be loaded by steel structure system, So we have to make the column more stronger that means we need more steel in the same situation compare with fixed foundation connection. In the meantime the foundation will not take the bending moment, So we can make a smaller foundation and save foundation cost. Above all normally this connection type we adopt it for light steel warehouse/ shed or other foundation limited situation.
Oppositely the fixed foundation connection, the foundation must take the bending moment load. Then we have to pay more on the foundation works. Meanwhile as for the foundation take the load of bending moment. So we can make a smaller column to save the steel quantity. obviously we will adopt this connection type in the project which have longer and huge column. That way can make us get the most cost effective plan.
Contact Person: Ms. Alice Lee
Tel: 0086 13969825647
