1. In Structures, we never use Real Work because:

2. In Structures, we never use Real Work because:
Limited to finding D in direction of 1 load at that load point.

3. In Structures, we never use Real Work because:
Limited to finding D in direction of 1 load at that load point.
In Structures, Use Virtual Work (VW)

4. In Structures, we never use Real Work because:
Limited to finding D in direction of 1 load at that load point.
In Structures, Use Virtual Work (VW)
VW = Virtual Force x Real Distance

5. In Structures, we never use Real Work because:
Limited to finding D in direction of 1 load at that load point.
In Structures, Use Virtual Work (VW)
VW = Virtual Force x Real Distance
The Principle of Virtual Work

6. In Structures, we never use Real Work because:
Limited to finding D in direction of 1 load at that load point.
In Structures, Use Virtual Work (VW)
VW = Virtual Force x Real Distance
The Principle of Virtual Work
“Virtual Work is Conserved”

7. In Structures, we never use Real Work because:
Limited to finding D in direction of 1 load at that load point.
In Structures, Use Virtual Work (VW)
VW = Virtual Force x Real Distance
The Principle of Virtual Work
“Virtual Work is Conserved”
Do: Apply Virtual Force (say, location and direction of desired D.

8. In Structures, we never use Real Work because:
Limited to finding D in direction of 1 load at that load point.
In Structures, Use Virtual Work (VW)
VW = Virtual Force x Real Distance
The Principle of Virtual Work
“Virtual Work is Conserved”
Do: Apply Virtual Force (say, location and direction of desired D.
Set: External VW = S Internal VW

9. In Structures, we never use Real Work because:
Limited to finding D in direction of 1 load at that load point.
In Structures, Use Virtual Work (VW)
VW = Virtual Force x Real Distance
The Principle of Virtual Work
“Virtual Work is Conserved”
Do: Apply Virtual Force (say, location and direction of desired D.
Set: External VW = S Internal VW