Statics week 10.pdf111111111111111111111111111111111111

Statics week 10.pdf

1. (Done in class)

2. (Done in class)

3. Distributed Loading
•Soil loading on
buried Pipelines

•Wind loading on
sign boards

•Hydrostatic
loading on
bridge columns

•Loadings on
structural Beams
Loadings that are somehow distributed over the surface (area) of the body!

4. 3-dimensional distributed loading.
However, if loading remains constant
in the third (width) direction than it
can be represented in 2-dimensions
only.
Resultant of Distributed Force:
[N/m
2
]
[N/m]
i.e. resultant of distributed load is the area under the loading curve.
Location of Distributed Force:
(Principle of moment)

5. (Done in class)

6. (Done in class)

7. Wrench or Screw
(Further reduction of force and couple system)
Effect: Rotation plus translation of a body (motion of a screw)
A wrench or a screw is the simplest system that can represent any general force and couple
moment system acting on a body. The system needs to be reduced down to only one
resultant force and only one collinear couple moment vector. This can be done by off setting
the F
R by a distance d thereby consuming the perpendicular couple moment component
shown in the above figures.

8. Chap 04 (12
th
ed Hibbeler)
F4-1, 4-5, 4-25, 4-33, 4-39, 4-42, 4-46, 4-50, Ex 4.9, F4-15, 4-57, 4-83, 4-91, 4-101, F4-28, 4-113,
Ex 4.23, F4- 39, 4-153
Suggested Problems