# Need help with force method

spn

## Homework Statement

I need help starting with this question.. I am very confused because the lecturer gave examples when its a canteleaver beam but not when it is in supported structure. I

For the given beam (Table 1, Figure 1):
• determine the number of degrees of freedom to which the
beam is indeterminate
• use Force Method of Analysis to determine the redundant
force(s)
• sketch the Free Body Diagram (FBD)
• construct the Shear Force Diagram (SFD) and the Bending
Moment Diagram (BMD)
• define dimensions for the cross section of the I-beam by
using the Main Strength Condition
• determine the deflection (or the slope) at a point A.
Take [ ] 160MPa; E 200 GPa; a 1m

## Homework Equations

wont require yet as i just need help to set up the FBD

## The Attempt at a Solution

I just needs step on how to set up using the Force method... Please view my attempt and comment if i am correct or wrong...

img.photobucket.com/albums/v236/ilmman/Ass2attempt1.jpg

img.photobucket.com/albums/v236/ilmman/Ass2attempt2.jpg

Homework Helper
Gold Member
At points 1 and 2, what is represented by those lines with the circles at the top and bottom?

spn
At points 1 and 2, what is represented by those lines with the circles at the top and bottom?

those are supposed to be supported beams... the circles are hinges. Using the 3L - H I got 3(2)-3 = 3 ... Indeterminates... I have to make it determinate by adding redundant forces which i have attempted from the links above. Can someone please confirm if it is correct?