A cable and pulley system at D is used to bring a 210 kg pole (ACB) to a vertical position, as shown in the figure part (a). Pole 1.0 m Cable 300 Pulley 5.0 m a 4.0 m (а) d АСВ Pin Pin support ( plates (b) The cable has tensile force T and is attached at C. The length L of the pole is 6.0 m, the outer diameter is d = 140 mm, and the wall thickness is t = 12 mm. The pole pivots about a pin at A in figure part (b). The allowable shear stress in the pin is 54 MPa and the allowable bearing stress is 92 MPa. Find the minimum diameter of the pin at A (in mm) in order to support the weight of the pole in the position shown in the figure part (a). (Assume there is a horizontal pin support at A.) 9.43 X mm

A cable and pulley system at D is used to bring a 210 kg pole (ACB) to a vertical position, as shown in the figure part (a). Pole 1.0 m Cable 300 Pulley 5.0 m a 4.0 m (а) d АСВ Pin Pin support ( plates (b) The cable has tensile force T and is attached at C. The length L of the pole is 6.0 m, the outer diameter is d = 140 mm, and the wall thickness is t = 12 mm. The pole pivots about a pin at A in figure part (b). The allowable shear stress in the pin is 54 MPa and the allowable bearing stress is 92 MPa. Find the minimum diameter of the pin at A (in mm) in order to support the weight of the pole in the position shown in the figure part (a). (Assume there is a horizontal pin support at A.) 9.43 X mm

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

Cables

Cables are collections of wires, alternatively referred to as a cord, connector, or plug. They are one or more wires covered in a plastic covering that allows for the transmission of power or data between devices. The earliest use of recognizable electrical cable was the early commercialized telegraph lines. These were iron-made and tedious to produce and install cabling.

Question

A cable and pulley system at D is used to bring a 210 kg pole (ACB) to a vertical position, as shown in the figure part (a).
В
Pole
1.0 m
Cable
30°
Pulley
5.0 m
a
T
A
D
a
4.0 m
(а)
d
АСВ
A
Pin
Pin support
plates
(b)
The cable has tensile force T and is attached at C. The length L of the pole is 6.0 m, the outer diameter is d = 140 mm, and the wall thickness ist = 12 mm. The pole pivots about a
pin at A in figure part (b). The allowable shear stress in the pin is 54 MPa and the allowable bearing stress is 92 MPa.
Find the minimum diameter of the pin at A (in mm) in order to support the weight of the pole in the position shown in the figure part (a). (Assume there is a horizontal pin support
at A.)
9.43
X mm

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