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?

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

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

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Concept explainers

Members with compression and bending

Compression members are structural elements that carry compressive axial force. They are the vertical members of a building that support beams and their design, which is governed by buckling and strength. Columns are known as struct or compression members, which are subjected to compressive forces. These members provide stiffness to the building and avoid any imperfection regarding the transfer of axial load. For instance, webs in a truss, braces in a framed structure, tiers, and so on.

Question

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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