The rigid bar of negligible weight is supported as shown. The assembly is initially stress-free. Find the stress in each rod if the temperature rises after a load W = 120 kN is applied. Steel rod Bronze rod A (mm²) 350 1500 a (/°C) 11.7 x 10-6 18.9 x 10-6 E (GPa) 200 83 O Steel 1.5 m 1.0 m- 2.5m-1.5 m- 9. Determine the stress at the steel rod in MPa when there is a temperature rise of AT = 36 °C. Bronze 3 m W

The rigid bar of negligible weight is supported as shown. The assembly is initially stress-free. Find the stress in each rod if the temperature rises after a load W = 120 kN is applied. Steel rod Bronze rod A (mm²) 350 1500 a (/°C) 11.7 x 10-6 18.9 x 10-6 E (GPa) 200 83 O Steel 1.5 m 1.0 m- 2.5m-1.5 m- 9. Determine the stress at the steel rod in MPa when there is a temperature rise of AT = 36 °C. Bronze 3 m W

Steel Design (Activate Learning with these NEW titles from Engineering!)

6th Edition

ISBN:9781337094740

Author:Segui, William T.

Publisher:Segui, William T.

Chapter5: Beams

Section: Chapter Questions

Problem 5.2.1P

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Concept explainers

Bars

In civil engineering, bars refer to steel reinforcement bars or rebars. These are structural members primarily used for reinforcement purposes in masonry works. A bar is characterized by its cross-sectional area, which is negligible compared to its length. Bars are usually manufactured by steel which is uniform throughout the length, or by meshing multiple steel wires. Other materials of the bar include carbon steel, glass fiber, carbon fiber, and basalt fiber. The reinforcing bars are coated with epoxy resins and other materials to enhance some of their properties including corrosion resistance.

Question

The rigid bar of negligible weight is supported as shown. The assembly is initially stress-free. Find the stress in each rod if the temperature rises after a load W = 120 kN
is applied.
Steel rod
Bronze rod
A (mm²)
350
1500
a (/°C)
11.7 x 10-6
18.9 x 10-6
E (GPa)
200
83
O
Steel 1.5 m
1.0 m-
2.5 m
9. Determine the stress at the steel rod in MPa when there is a temperature rise of AT = 36 °C.
W
Bronze 3 m
1.5 m-

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