SITUATION. As shown in the figure below, a rigid bar with negligible mass is pinned at O and attachec to two vertical rods. Assume that the rods were initially stress-free. Allowable stress in steel is 120 MPa and in bronze is 60 MPa. For this problem, a = 1.8m; b = 1.3m; c = 1.7m. b Steel: A=900 mm² E= 200 GPa L=1.5m C Bronze: A 1200 mm E=83 GPa L=2.0m What is the value of P without exceeding the allowable stress of bronze, in kN?

Structural Analysis
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Chapter2: Loads On Structures
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SITUATION. As shown in the figure below, a rigid bar with negligible mass is pinned at O and attached
to two vertical rods. Assume that the rods were initially stress-free. Allowable stress in steel is 120
MPa and in bronze is 60 MPa. For this problem, a = 1.8m; b = 1.3m; c = 1.7m.
b
C
P
Steel:
A=900 mm²
E = 200 GPa
L=1.5m
Bronze:
A 1200 mm
E=83 GPa
L=2.0m
What is the value of P without exceeding the allowable stress of bronze, in kN?
174
145
161
124
Transcribed Image Text:SITUATION. As shown in the figure below, a rigid bar with negligible mass is pinned at O and attached to two vertical rods. Assume that the rods were initially stress-free. Allowable stress in steel is 120 MPa and in bronze is 60 MPa. For this problem, a = 1.8m; b = 1.3m; c = 1.7m. b C P Steel: A=900 mm² E = 200 GPa L=1.5m Bronze: A 1200 mm E=83 GPa L=2.0m What is the value of P without exceeding the allowable stress of bronze, in kN? 174 145 161 124
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