Deflection of Truss Apparatus Manufacturer,Supplier and Exporter in India
Product Code : EL-SML-10073
Jlab Export is a leading Deflection of Truss Apparatus Manufacturer,and suppliers in India
Deflection of Truss Apparatus (code EL-SML-10073) is a four-panel Pratt steel truss with 40 cm by 30 cm panels, loaded at its panel points to study member forces and joint deflection. Every tension member carries a detachable spring, so it stretches enough to be seen and measured. JLab makes this spring-member Pratt truss, complete with stand and weights, in Ambala, India.
Specifications
| Parameter | Detail |
|---|---|
| Truss | Pratt steel truss, 4 panels |
| Panel size | 40 cm horizontal × 30 cm vertical |
| Loading | Load can be applied at each panel point |
| Tension members | Detachable springs for appreciable deformation |
| Diagonals | Direction can be changed |
| Supplied with | Supporting stand and a set of weights |
| Quality check | Each truss apparatus is visually inspected before dispatch |
| Pack quantity | Each (sold individually) |
| Minimum order quantity | 1 unit |
| Dispatch time | Usually 14–18 working days |
| Product code | EL-SML-10073 |
| Manufacturer | Jain Laboratory Instruments Pvt Ltd (JLab) — OEM |
| Country of origin | India (made in Ambala, Haryana) |
Unit-Load Method for Joint Deflection
The deflection of a joint is found by the unit-load method: δ = Σ (P u L) / (A E), where P is the force in each member under the applied loads and u is its force when a unit load acts alone at the joint in question. With springs in the tension members, the term P L / (A E) for those members becomes the extension of the spring itself, so the calculation can be checked member by member against the stretch of each spring.
Reversing the Diagonals
Under downward loads the diagonals of a Pratt truss are in tension and the verticals mainly in compression. Changing the direction of the diagonals gives the Howe arrangement, in which the diagonals take compression instead, so a different set of members stretches and the truss shows visually how the type of force depends on member layout.
Other Truss, Joint and Curved-Bar Apparatus
- Pinned Joint Model — qualitative truss model showing which members carry tension or compression.
- Redundant Joint Apparatus — spring-balance members meeting at one loaded joint.
- Curved Member Apparatus — energy-method deflections of curved steel bars loaded at the free end.
Other trusses, beams and arches are in Structural Mechanics Lab, within Engineering Lab Equipment.
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Last updated: 30 October 2026
