Question 1

Question 1

Beams – Internal Forces question 1

Find the internal forces at the section cut C-C.

Find the internal forces at the section cut C-C.

Click below to show answer. X

Step 1:
Draw FBD of beam and replace distributed load with equivalent force

Step 1:
Draw FBD of beam and replace distributed load with equivalent force

Beams – Internal Forces solution step 1

Step 2:
Solve for reactions using equations of equilibrium

Step 2:
Solve for reactions using equations of equilibrium

Beams – Internal Forces solution step 2

Step 3:
Draw FBD for section cut

Step 3:
Draw FBD for section cut

Beams – Internal Forces solution step 3

Step 4:
Solve for internal forces using equations of equilibrium

Step 4:
Solve for internal forces using equations of equilibrium

Beams – Internal Forces solution step 4

Useful formula:

Useful formula:

Beams – Internal Forces formula

Now that you've mastered this question, you can try Question 2.