HST16 Redundant Truss

HST16 Redundant Truss

The 45° two bay truss consists of seven members with pinned joints cantilevered from the vertical member of the HST1 Universal Frame and Stand (sold separately) using an upper springing and supported by a roller bearing on a vertical track at the lower springing. An extra diagonal member with its length adjustable by a simple mechanism is provided to make the first bay of the truss redundant.

Each truss member incorporates a strain gauge bridge arrangement for direct measurement of strain. Load is applied to the truss by a screw jack mechanism with integral load cell. The strain and force signals are fed directly into the HDA200 Interface (sold separately). A dial gauge measures the deflection of the joints and can be located around the truss from the HST1 Universal Frame and Stand (sold separately).

A comprehensive instruction manual for lecturer and student, giving full details on apparatus assembly and operation as well as example results. All necessary assembly and operational tools are provided.

Essential accessories: HST1, HDA200

HST16 Redundant Truss
  • To be constructed of a 45° two bay cantilevered truss with seven members and pinned joints
  • To include an extra (redundant) member with a simple means of adjusting its length into the truss
  • Vertical and horizontal members 400mm centres
  • Strain gauge technology (half bridge) used on each truss member
  • Loaded by an accurate screwjack mechanism with integral load cell (500N)
  • Deflection measured using digital deflection indicator (0.01mm resolution) with connecting lead
  • Must be used with HST1 universal Frame and Stand (sold separately)
  • Must be used with HDA200 Interface (sold separately)
  • Comprehensive instruction manual provided
  • 2 year warranty
  • To measure the strain and deflection in the individual members of a truly pin jointed truss when a redundant member is added
  • Comparison of experimental forces with theoretical values
  • View and record the effect of lack of fit of the redundant member into the truss
  • Study of deflection of a truss with and without redundancy
  • Study of strains, forces and deflections in a determinate and indeterminate framework