• This product helps students to understand the deflections in curved bars and davits when used as simple structures to support loads. 
• The upper end supports a variable load. 
• Two precision indicators measure the deflection due to the load.
• The two davits are good examples of popular real-life structures.
• They compare results with the theoretical values found using elastic deflection theory.
• Students fit the lower end of a choice of curved bars and davits to a fixing plate. 
• The load to the curved bars or davits, measuring the vertical and horizontal deflection. 
• This product includes a Vernier caliper for accurate measurements of the cross-section of the curved bars and davits.
• The deflection indicators have their own displays, but they can connect to the USB interface hub of the Structures platform for computer display and data acquisition.

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• This preserves the load direction as the portal deforms.
• Students fit the specimen portal frame to fixing blocks that simulate fixed foundations, and apply loads. 
• Load cells measure the applied forces and precision indicators measure the portal deformation. 
• Each load cell applies and measures the load through cables at 90 degrees to the portal. 
• It explains how a building may fail, but still withstand loads to allow people to safely leave before complete collapse. 
• Students use textbook equations to predict the results, comparing them to measured results. 
• This helps confirm the reliability of the textbook equations and the accuracy of the experiment results.
• Students apply either vertical, horizontal or combined loads to the portal, forcing it to bend through the elastic region and into the plastic region where it deforms permanently, experiencing ‘plastic collapse’ and the formation of ‘plastic hinges’.
• ?It also shows the interaction between the vertical and horizontal loads and the production of an interaction diagram to predict the failure mode.

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• Two supports hold the truss. 
• One support allows rotation only and the other allows rotation and translation. 
• Students apply a load to the truss at the free end Joint Boss. 
• Strain gauges on each truss member measure the forces due to the load. 
• A precision indicator measures the framework deflection due to the load. 
• Hand-operated load cell assembly applies and measures the load. 
• A simple thumbscrew engages and disengages an extra ‘redundant’ member.
• Students apply loads to the truss initially without the extra ‘redundant’ member engaged. 
• Students may measure the deflection of the frame for both cases and compare.
• This helps confi rm the reliability of the textbook equations and the accuracy of the experiment results.
• They then engage an extra ‘redundant’ member, making the frame statically indeterminate, requiring a more advanced analysis such as the strain-energy method. 
• The strain gauges connect to a strain gauge amplifier, which connects to the interface hub of the Structures platform for computer display and data acquisition.

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• Students fit one of a choice of two frames between two supports and apply vertical loads to the beam member. 
• Students apply loads to the portal frame. 
• They compare predictions to measured and observed results.  
• A precision indicator measures any horizontal deflection (sway) at the junction of the beam and the upright. 
• Each support includes pointers that work with the scale on the platform for accurate positioning.
• Both frame beams can be loaded anywhere along their length. 
• This allows the students to understand the two causes of frame sway other than direct loads.
• This helps confi rm the reliability of the textbook equations and the accuracy of the experiment results.
• This product includes a Vernier caliper for accurate measurement of the frame cross-section.
• They use textbook equations and analysis to predict the reaction forces and fixing moments due to the load and whether or not the frame will sway and its magnitude. 
• Load cells in the supports measure the bending moment and horizontal reaction at the base of the uprights due to the load.

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Students apply loads, which change the cable tension. 
This helps confi rm the reliability of the textbook equations and the accuracy of the experiment results. 
The theory shows the simplified parabola-based equation and the more realistic theory, based on the model. 
They use textbook beam equations to predict the tension for any given load, comparing them to measured results. 
This product includes additional masses so students may apply a uniformly distributed load (UDL) and a single point load.
The load cell connects to the USB interface hub of the Structures platform for computer display and data acquisition.
It also helps students understand the overwhelming influence of the deck mass against the relatively small loads such as vehicles passing over the bridge.

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• A precision indicator measures any horizontal deflection (sway) due to the load. 
• They may also add loads to moment arms on the vertical members of the frame. 
• These simulate the effect of internal and external cantilever floors of a structure. 
• This product includes a Vernier caliper for accurate measurement of cross-section.
• Students add vertical or horizontal or combinational loads to a portal frame held between two fixing blocks. 
• The strain gauges connect to a strain gauge amplifier which connects to the USB interface hub of the Structures platform for computer display and data acquisition.
• Students use textbook analysis methods to predict the bending moments at key positions, along with the sway magnitude.
• Strain gauges at key points around the portal measure the strains and in turn the bending moment due to the loads.
• The positions of the strain gauges and resulting measured bending moments allow students to plot bending moment diagrams for the frame for different loading conditions, allowing comparison to calculated results.

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• The bridge has two outer ‘anchor’ sections, each on two supports. 
• Load cells in the supports and bridge structure measure the reactions to the loads.
• They use textbook equations to predict the reactions, comparing them with measured results. 
• The anchor sections each have a short cantilever that supports a short central suspended section. 
• The four bridge supports include pointers that work with the scale on the platform for accurate positioning. 
• This helps confirm the reliability of the textbook equations and the accuracy of the experiment results.
• This bridge design differs from some others in that is statically determinate, yet may have large central spans.
• The load cells connect to the USB interface hub of the Structures platform for computer display and data acquisition.
• Students apply loads across to any position on the bridge and measure the resulting support reactions, and the internal reactions between the cantilever and suspended sections.

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• A precision indicator on a slide can be easily positioned to measure beam deflections. 
• Two additional supports help complete the experiments.
• The first experiments use two simple supports and a ‘rigid’ and heavy beam to examine statically determinate systems.
• Students learn basic principles such as moments, the principle of superposition, uniformly distributed loads and the 
• Students use a light and ‘flexible’ beam. 
• All supports and the indicator slide have pointers that work with the scale and the platform for accurate position.
• One allows measurement of the support fixing moment, the other ‘universal support’ works as simple support, a clamped support and a sinking knife edge support.
• The second set of experiments relate to more advanced beam structures that are statically indeterminate, or involve a measureable beam deflection. 

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