A truss has 10 members and 5 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 = 5 and m = 10

2(5) = 10 + 3 10 < 13

Since 2j < m + 3, the truss is Statically Indeterminate

What is the Answer?

Since 2j < m + 3, the truss is Statically Indeterminate

How does the Static Determinacy and Stability Calculator work?

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?

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.)

Example calculations for the Static Determinacy and Stability Calculator