STR13 - Experiment

CONTINUOUS AND INDETERMINATE BEAM

An experimental apparatus to allow students to investigate the properties of statically indeterminate and continuous beams.

PDF datasheet
Quantity

The experiment hardware fits onto a Structures Test Frame (STR1, available separately). Students rest a beam on up to three ‘piers’. The piers are movable, so students can arrange them in many different positions under the beam. Students use masses on weight hangers to load the beam.They can also attach the flexible beam to a backboard to measure deflection or fixing moment. The piers each contain a load cell to measure vertical reactions. These connect to a Digital Force Display (STR1a, available separately). Two of the load cells have knife-edge supports, which students can either fix or allow to sink by a set displacement. The third pier load cell allows students to either clamp the beam (encastré fixing) or rest the beam on a knife edge. The unique design of this equipment allows the load cell to resist the bending moment while accurately measuring the vertical reaction. To measure beam deflection, the backboard has a digital indicator which students move along the beam. The backboard also has a mechanism for measuring the fixing moment of a propped cantilever or a fixed beam. 

The lecturer guide provides details of the equipment including sample experiment results. The student guide describes how to use the equipment and gives experiment procedures. 

For extra ‘virtual’ experiments, TecQuipment can supply the optional TecQuipment Structures Software (STRS), for use on a suitable computer. The virtual experiments simulate the tests you can perform with the hardware. They also extend the choice of tests beyond that available using only the hardware, for example: higher loads, uniform loads or different test specimens. This extends the student’s learning experience.

For automatic data acquisition of your experiment results, TecQuipment can supply the optional Automatic Data Acquisition Unit (STR2000). Supplied as standard with the STR2000 is TecQuipment’s Structures Software that displays and logs your experiment results and gives the extra virtual experiments.

  • Reactions of a simply supported beam
  • Reactions of a two-span continuous beam
  • Reactions and fixing moments of a fixed beam and a propped cantilever
  • Reaction and fixing moment of a propped cantilever with a sinking support
  • Relationship between load and deflection for beams and cantilevers - This equipment allows many possible experiment configurations, using a stiff (rigid) beam, or a significantly more flexible beam.
STR1 - Base Unit

A sturdy lightweight aluminium bench-mounting frame to provide rigid support for the interchangeable experimental modules in TecQuipment's Structures Range (STR2 -STR20).

STR1A - Ancillary

A hardware module to simultaneously measure and display the output of up to 4 force sensors mounted on experiments in TecQuipment's Structures Range (STR2 -STR20).

STR2000 - Ancillary

A computer interface module with ADA software that allows the hardware experiments in TecQuipment's Structures Range to be interfaced to a PC.

VDAS SM1004 - Experiment

A bench mounted beam apparatus to allow students to investigate the deflections and reactions in simply supported and cantilevered beams.

ES4 - Experiment

Demonstrates the deflection of beams of different materials and dimensions, held on different supports.

STR4 - Experiment

An experimental apparatus to allow students to investigate deflection and stability of beam and cantilever structures.

TE16 - Experiment

A bench mounting 3-point bend apparatus to allow investigations into the stiffness in bending of different materials of the same cross-section (Young's Modulus - Stiffness) and the stiffness of a single material with different cross-section geometries (Second Moment of Area - 'I' Value).

SM1000G - Experiment

Test leaf Spring, knife edges and attachments to allow leaf spring and beam bending tests with TecQuipment's SM1000 Universal Test Machine.