ZIMSEC O Level Combined Science Notes:Joining trusses
- In the real world various techniques are used to join trusses in ways that prevent joints from becoming points of weakness
- Steel trusses are usually joined by welding them together
- This ensures that stresses are transmitted equally along the joint
- A gusset plate can also be used to join two or more members of wooden/metal trusses
- Gusset plates are thick sheets of steel that are used to connect beams and girders to columns or to connect truss members.
- A gusset plate can be fastened either by bolts, rivets or welding or a combination of the three
- Wooden trusses are joined using gang nails seen in the picture above
- These are steel plates with steel spikes the stick out
- The increased number of spikes help to evenly spread out the stress at joints
- Joints in furniture are often a source of weakness
- This is because they are usually subjected to high tension forces
- Furniture often starts failing along these joints
To access more topics go to the Combined Science Notes page
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