structural analysis

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zbqn0_0

Engineering

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solve the problems ................

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1 ASSIGNMENT #1: 1- Determine the reaction forces of the supports for the structures shown below: 2- Determine the forces in the members indicated by “*” of the truss shown by the method of sections. 3- Determine the force in each member of the truss shown by the method of joints.
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Explanation & Answer

attached below is my edited and updated answer

In my answer to problem 1 and 3, I use the following notation:


T1 , T2 stand for tension forces



M

A

represents the total momentum including both clockwise and counter-clockwise

forces around the point A


M

B

represents the total momentum including both clockwise and counter-clockwise

forces around the point B


F
F



Ax represents the force along x-axis or horizontal axis at the point A



Ay represents the force along the y-axis or vertical axis at the point A



Bx represents the force along x-axis or horizontal axis at the point B



B y represents the force along the y-axis or vertical axis at the point B



x

represents the net force along x-component or horizontal axis

y

represents the net force along the y-component or vertical axis

Problem 1:
For figure P3.16, we have

T1 = 70kN
T2 = 50kN

M

B

=0

3

1

1

 − Ay ( 24m ) + ( 50kN )   ...


Anonymous
Just what I was looking for! Super helpful.

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