How do I calculate forces in a truss cross section?

In summary, calculating forces in a truss cross section involves several key steps: first, identify the truss configuration and loads acting on it. Then, apply the method of joints or the method of sections to analyze the forces in the members. For the method of joints, equilibrium equations (ΣF_x = 0 and ΣF_y = 0) are used at each joint to determine member forces. For the method of sections, a section of the truss is isolated, and equilibrium equations are applied to solve for unknown forces. Consideration of the material properties and geometry is also crucial for accurate calculations.
  • #1
carlcla
10
6
Homework Statement
Calculate the trusses in each beam of one of the cross sections
Relevant Equations
N/A
I need to calculate the forces in each of the beams in one of the two equal cross sections of the truss attatched in the picture. The second picture is the cross section of the truss.

As you can see on the 3d picture of the truss the loads are attatched with equal distance inbetween the 2 "cross sections" that make up the truss. When calculating forces in one of the cross sections as in the 2. Picture, do i also need to devide the loads in half as I am only calculating for half the truss?
 

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  • #2
carlcla said:
When calculating forces in one of the cross sections as in the 2. Picture, do i also need to devide the loads in half as I am only calculating for half the truss?
Yes, each truss is supporting half of the total hanging weight.
 
  • #3
Thanks!
 

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