Basic Roof Truss

The apparatus consists of two rafter struts and a restraining tie mounted on a self contained, bench top base.
Evaluation of co-planar forces in the struts and tie of a basic roof truss
Effect of changing tie bar length
Loading at the hinged apex by load hanger
The tie length, and hence angle of truss, variable
Both struts and tie incorporate linear, direct reading spring balances to measure forces
An instruction manual for student and lecturer provided
Struts and tie re-adjustable to original lengths
Set of weights.

Basic Roof Truss