Question

The beam shown in Figure 1 below is supported by a pin at A and 2 pin-connected bars at

Determine the force in member BD and BC, and the reactions at A using the FORCE METHO
Take E = 200 GPA, I = 4.5 x (10)6 mm4 for the beam, and A = 3000 mm² for each bar.
A
3m
30
80 kN/m
B.
50
2.0 m

Answer 1

Explanation:

Equation : A/B = BD/BC

PLUG IN THE NUMBERS = 117

THEREFORE,

A=57, B=60

Answer 2

The pin jointed frames all add up to be 117.

A = 57 B = 60

Explanation:

The equation is A/B = BD/BC and if you plug in the numbers you get 117.