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Frame Deflections And Reactions
Frame Deflections And Reactions (Product Code: SLE/EG/05) lets students load a portal-type frame and measure how it sways and what reactions develop at its base. One of two frames is fitted between two supports; load cells in the supports read the bending moment and horizontal reaction at the foot of each upright, and a precision indicator records sideways deflection at the beam-to-upright junction. A Vernier caliper is included for cross-section measurement. The module is made by Jain Scientific Equipments Pvt Ltd (ScienceLab), Ambala, as structures lab equipment for college and university civil engineering courses.
Key Details
| Parameter | Detail |
|---|---|
| Type | Frame sway, deflection and support reaction experiment |
| Frames | Choice of two frames, fitted between two supports |
| Loading | Vertical loads on the beam member; both frame beams can be loaded anywhere along their length |
| Sway measurement | Precision indicator at the junction of the beam and the upright |
| Reaction measurement | Load cells in the supports measure bending moment and horizontal reaction at the base of the uprights |
| Positioning | Pointers on each support work with the scale on the Structures Platform |
| Included measuring tool | Vernier caliper for measuring the frame cross-section |
| Predictions compared | Reaction forces, fixing moments, whether the frame sways, and the magnitude of sway |
Typical Use
Students begin with calculation. Using textbook frame analysis they predict the base reactions and fixing moments for a given load position, and decide whether the frame should sway and by how much. They then set the supports using the pointers and platform scale, apply the load to the beam and read the support load cells and the sway indicator. A symmetric load on a symmetric frame should give little or no sway; moving the load off-centre, or changing to the second frame, shows sway appearing even though no sideways force is applied.
That is the key lesson: the module helps students understand the two causes of frame sway other than direct loads, which many find counter-intuitive on paper. Measuring the member sizes with the supplied caliper keeps the stiffness calculations honest. For departments building a set of mechanics lab equipment for structural analysis, it links single-beam work to full frame behaviour.
Manufacturer
Frame Deflections And Reactions is manufactured by Jain Scientific Equipments Private Limited, an Ambala, Haryana company that markets its products as ScienceLab. See our company profile for more about the organisation.
Related Laboratory Equipment
Related frame and structures experiments:
- Structures Platform — carries the scale used to position the supports, plus the USB hub
- Bending Moments In A Portal Frame — strain-gauge readings for full bending moment diagrams of a portal
- Plastic Bending of Portals — takes frame loading past yield to plastic collapse
- Redundant Tuss Next Generation Structures — deflection and member forces in a braced framework
Find the remaining modules in our General Products section.
Frequently Asked Questions
What do the support load cells measure?
The bending moment and the horizontal reaction at the base of each upright caused by the applied load.
How many frames are supplied?
There is a choice of two frames; either can be fitted between the supports.
Can loads be placed anywhere on the beam?
Yes. Both frame beams can be loaded at any point along their length, which is how off-centre loading and sway are studied.
Is the Structures Platform required?
The supports use the scale on the platform for positioning, so the module is intended to be used on it. The platform is sold as a separate item.
What is the frame material and load capacity?
These details are not in our current description. Please contact us for the full specification.
How do warranty and calibration paperwork work?
Warranty terms are stated on the quotation, and any calibration documentation for the load cells can be discussed with us at enquiry.
Request a Quote
Colleges in India and international markets can request a price for Frame Deflections And Reactions via the contact page or by adding it to the enquiry cart.
Last updated: 24 September 2026
