STR8 Pin-Jointed Frameworks – Essaylink

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• TecQuipment Ltd, Bonsall Street, Long Eaton, Nottingham NG10 2AN, UK
• T +44 115 972 2611 • F +44 115 973 1520 • E info@tecquipment.com • W www.tecquipment.com
• An ISO 9001 certified company
STR8 Pin-Jointed Frameworks
Page 1 of 2
STRUCTURES
For study of the strains, stresses,
forces and deflections in various
pin-jointed frameworks
• High-quality structures teaching module for students of mechanical, civil and structural engineering
• Allows safe and practical experiments into pin-jointed frameworks
• Realistic and verifiable experiments results
• Optional TecQuipment’s Structures Software package for extra ‘virtual’ experiments that simulate
and confirm the results from your hardware and allow extended experiments
• Optional STR2000 unit with TecQuipment’s Structures Software package for automatic data
acquisition and virtual experiments
• One of many interchangeable experiment modules from TecQuipment’s modern, flexible and costeffective structures teaching system
• Ideal for classroom demonstrations, or students working in pairs or small groups
PE/db/1115
Screenshot of the optional
TecQuipment Structures Software
• TecQuipment Ltd, Bonsall Street, Long Eaton, Nottingham NG10 2AN, UK
• T +44 115 972 2611 • F +44 115 973 1520 • E info@tecquipment.com • W www.tecquipment.com
• An ISO 9001 certified company
STR8 Pin-Jointed Frameworks
Page 2 of 2
STRUCTURES
Description
The experiment hardware fits onto a Structures Test Frame
(STR1, available separately). Students use stainless-steel
members to build different pin-jointed frameworks. The
members join by slotting the ends into bosses.
The equipment includes two framework supports: a
pivoting support, and a pivoting and rolling support. Each
member has a strain gauge attached that connects to a
digital strain bridge. A load cell applies loads to the
structure at various angles. When connected to the
optional Digital Force Display (STR1a), the load cell
measures the applied load. To apply loads simultaneously,
extra load cells are available (STR8a).
A digital deflection indicator measures the deflection and
the digital strain bridge shows the strains in the members.
From this, students can calculate the forces in the
members.
TecQuipment supplies the members in a custom-made
storage tray to avoid accidental damage. A second tray
stores the joint bosses and other loose items.
Included is a lead to connect the load cell to a Digital
Force Display (STR1a, available separately). 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.
Standard Features
• Supplied with lecturer guide and student guide
• Five-year warranty
• Made in accordance with the latest European Union
directives
Experiments
• Study of Bow’s Notation, strains, stresses, forces and
deflections in various frameworks, including a Warren
girder and roof truss
• Comparison of different frameworks
Essential Base Unit
• Structures Test Frame (STR1)
Essential Ancillary
• Digital Force Display (STR1a)
Recommended Ancillaries
• Additional Load Cell (STR8a)
• Automatic Data Acquisition Unit (STR2000) for
automatic data acquisition and virtual experiments
Essential Services
Electrical supply:
100 VAC to 240 VAC, 1 A, 50/60 Hz, with earth
Operating Conditions
Operating environment:
Laboratory
Storage temperature range:
–25ºC to +55ºC (when packed for transport)
Operating temperature range:
+5ºC to +40ºC
Operating relative humidity range:
80% at temperatures < 31ºC decreasing linearly to 50% at
40ºC
Specifications
Nett dimensions and weight:
550 x 370 x 150 mm, 8 kg
Approximate packed dimensions and weight:
0.078 m3, 10 kg
Load:
0 to 500 N load cell with electronic load sensor (extra load
cells are available)
Bosses:
9 universal bosses, each connect members at 30, 45 or 60
degrees
Members:
15 stainless steel, various lengths with strain gauges
attached
Strain measurement:
16-way digital strain bridge
Deflection measurement:
Digital deflection indicator

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