Three Hinged Arch Apparatus Manufacturer,Supplier and Exporter in India
Product Code : EL-SML-10076
Jlab Export is a leading Three Hinged Arch Apparatus Manufacturer,and suppliers in India
Three Hinged Arch Apparatus (code EL-SML-10076) is a mild steel arch model of 100 cm span and 25 cm rise, hinged at both supports and at the crown, with one end resting on rollers. Load points are marked at equal spacing along the span. JLab produces the arch, its stand and weights in Ambala, India, for structural analysis classes.
Specifications
| Parameter | Detail |
|---|---|
| Model | Mild steel three-hinged arch |
| Span and rise | 100 cm span, 25 cm rise |
| Hinges | At both supports and at the crown |
| Roller end | One end rests on rollers |
| Load points | Marked at equal intervals along the horizontal span |
| Dial gauge | 25 mm travel, with magnetic base (can be supplied) |
| Supplied with | Supporting stand and a set of weights |
| Quality check | Each arch model 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-10076 |
| Manufacturer | Jain Laboratory Instruments Pvt Ltd (JLab) — OEM |
| Country of origin | India (made in Ambala, Haryana) |
Calculating and Measuring the Horizontal Thrust
The crown hinge makes the arch statically determinate. Taking moments about the crown gives the horizontal thrust as H = Mc / h, where Mc is the bending moment at the crown position of a simply supported beam of the same span carrying the same loads, and h is the rise. For a single load W at the crown of this 100 cm by 25 cm model, H = WL / 4h works out equal to W. On the rig, the roller end tends to move outward under load, and neutralising that movement gives H directly for comparison with the calculation.
Influence Line for Thrust
Moving one load across the marked points and recording H at each gives the influence line for horizontal thrust. It is a triangle with its peak at the crown, because the crown moment of the equivalent simply supported beam rises linearly as the load moves from either support toward the crown.
Other Arch, Cable and Frame Apparatus
- Two Hinged Arch Apparatus — same 100 cm span and 25 cm rise, with thrust as a redundant.
- Suspension Bridge Apparatus — mild steel cables that carry loads in direct tension only.
- Portal Frame Apparatus — roller-ended frame where a spring balance records the horizontal reaction.
For more arches and frames, open Structural Mechanics Lab; the parent Engineering Lab Equipment section covers the other subjects.
Request a Quote
To get a quotation, use Add To Cart or the contact page and tell us the number of models, whether a dial gauge is needed and the delivery town.
Last updated: 30 October 2026
