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Forces Simple Bar Structure 

Altec Labs Home  »  Structural Lab Equipment ยป Forces Simple Bar Structure
Altec Labs Manufacturers for Forces Simple Bar Structure from India  
Forces Simple Bar Structure  Name
(Code - ALABS-A169-047 ) | Altec Export Lab Specification:
Forces Simple Bar Structure : Forces Simple Bar Structure  

In the single plane system the bars are only subjected to compression and tension. Loads are applied only to the nodes. The unit comprises three members that are joined together using discs such that the joints are free to move. A longitudinally adjustable bar permits the bar structure to be constructed with different angles. The bars engage in the discs by snap-locks. Two of the node discs also form the supports (fixed and free) and are clamped to the sturdy aluminium section base frame. The external load is applied to the upper nodal point by means of weights. The bar forces occurring are measured by the deformation of leaf spring elements in the middle of the bar. The method of joints enables the bar forces to be determined by formulating a system of equations.


1. Resolution of forces in a single plane, statically determinate system
2. 3 node discs, 2 of which serving as supports
3. 3 bars, each fitted with a leaf spring element and dial gauge
4. 2 fixed bar lengths, 1 variable bar length
5. 5 different angles adjustable between bars
6. Box to house the components

Technical Data

- fixed bar: l=440mm
- adjustable bar: l=440, 622, 762mm

Angle between bars

- 60° – 60° – 60° / 45° – 90° – 45°
- 30° – 120° – 30° / 30° – 30° – 120°

Dial gauge

- measuring range: 0…10mm, graduations: 0,01mm
Weight set: 1x 1N (hanger), 1x 10N, 2x 20N
Leaf spring element: force measuring range 0…50N

  • Resolution of forces in simple bar structures


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