H.W3:1- A hallow steel tube 3.5 m long has external diameter of 120 mm.The tube was subjected to tensile load of 400 kN and extension wasmeasured to be 2 mm. If the modulus of elasticity for the tube materialis 200 GPa. Determine the internal diameter of the tube.1202-A steel bar ABCD is subjected to point loads of P, P, P, and Pa as shown in Fig. 3.15.A40 x 40B30 x 3025 x 25CDP1P2 P3+> P475010001200Determine the magnitude of the force P, necessary for the equilibrium, if P, = 120 kN, P, = 220and P= 160 kN. Also determine the net change in the length of the steel bar. Take E = 200 GPa.

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1- A hallow steel tube 3.5 m long has external diameter of 120 mm. The tube was subjected to tensile load of 400 kN and extension was measured to be 2 mm. If the modulus of elasticity for the tube material is 200 GPa. Determine the internal diameter of the tube. 120

1- A hallow steel tube 3.5 m long has external diameter of 120 mm. The tube was subjected to tensile load of 400 kN and extension was measured to be 2 mm. If the modulus of elasticity for the tube material is 200 GPa. Determine the internal diameter of the tube. 120

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

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

H.W3:
1- A hallow steel tube 3.5 m long has external diameter of 120 mm.
The tube was subjected to tensile load of 400 kN and extension was
measured to be 2 mm. If the modulus of elasticity for the tube material
is 200 GPa. Determine the internal diameter of the tube.
120
2-
A steel bar ABCD is subjected to point loads of P, P, P, and Pa as shown in Fig. 3.15.
A
40 x 40
B
30 x 30
25 x 25
C
D
P1
P2 P3+
> P4
750
1000
1200
Determine the magnitude of the force P, necessary for the equilibrium, if P, = 120 kN, P, = 220
and P= 160 kN. Also determine the net change in the length of the steel bar. Take E = 200 GPa.

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