A truss has 4 members and 3 joints. Is it:
Statically Determinate
Statically Indeterminate
Unstable
Statically Determinate?
Is the following equation true:?
2j = m + 3 where
j = joints and m = members
Plug in j = 3 and m = 4
2(3) = 4 + 3
6 < 7
Since 2j < m + 3, the truss is
Statically Indeterminate
You have 1 free calculations remaining
What is the Answer?
Since 2j < m + 3, the truss is
Statically Indeterminate
How does the Static Determinacy and Stability Calculator work?
Free Static Determinacy and Stability Calculator - Given a number of joints (j) and a number of members (m), this determines if a truss is statically determinate, statically indeterminate, or unstable
This calculator has 2 inputs.
What 1 formula is used for the Static Determinacy and Stability Calculator?
2j = m + 3where j = joints and m = members
For more math formulas, check out our Formula Dossier
What 4 concepts are covered in the Static Determinacy and Stability Calculator?
- joint
- formed when two or more surfaces are joined together
- stable
- A structure which will not topple over easily when acted upon by a load
- static determinacy and stability
- truss
- a structural member usually fabricated from straight pieces of metal or timber to form a series of triangles lying in a single plane. (A triangle cannot be distorted by stress.)
