What is the condition for a structure to be statically determinate?
Practice Questions
Q1
What is the condition for a structure to be statically determinate?
More equations than unknowns
More unknowns than equations
Equations equal to unknowns
None of the above
Questions & Step-by-Step Solutions
What is the condition for a structure to be statically determinate?
Step 1: Understand what a structure is. A structure can be a bridge, building, or any framework that supports loads.
Step 2: Know what 'statically determinate' means. It means that the structure can be analyzed using only the equations of equilibrium.
Step 3: Learn about the equations of equilibrium. These are mathematical statements that describe the balance of forces and moments acting on the structure.
Step 4: Identify the unknowns in the structure. These are the forces or reactions that need to be calculated to understand how the structure behaves.
Step 5: Count the number of equations of equilibrium available. For a 2D structure, there are usually three equations: sum of horizontal forces = 0, sum of vertical forces = 0, and sum of moments = 0.
Step 6: Compare the number of equations of equilibrium to the number of unknowns. If they are equal, the structure is statically determinate.
