Gang nails on a wooden truss.

Gang nails on a wooden truss. Image credit naildesignart.biz

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


Quick NetOne, Telecel, Africom, And Econet Airtime Recharge

If anything goes wrong, chat with us using the chat feature at the bottom right of this screen