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A square steel tube below is used to sustain a compression load of 480 KN. If the steel square tube have a compressive strength of 180 MPa and a side of 100mm, determine the thickness of the tube.

A square steel tube below is used to sustain a compression load of 480 KN. If the steel square tube have a compressive strength of 180 MPa and a side of 100mm, determine the thickness of the tube.

Structural Analysis
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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PROBLEM SOLVING: 1. A square steel tube below is used to sustain a compression load of 480 KN. If the steel square tube have a compressive strength of 180 MPa and a side of 100mm, determine the thickness of the tube. The rigid bar ABC is supported by a pin at A and a steel rod at B. Determine the largest vertical load P that can be applied at C if the stress in the steel rod is limited to 35 ksi and the vertical movement of end C must not exceed 0.12 in. Neglect the weights of the members. 3. The rigid bars AB and CD are supported by pins at A and D. The vertical rods are made of aluminum and bronze. Determine the vertical displacement of the point where the force P = 10 kips is applied. Neglect the weights of the members. 4. Two 1.75-in-thick rubber pads are bonded to three steel plates to form the shear mount show in the figure. Find the displacement of the middle plate when 1200-lb load is applied. Consider the deformation of rubber only. Use E = 600 psi and v= 0.45 for rubber. 5. A uniform bar of length L, cross-sectional area A, and a unit mass p is suspended vertically from one end. Derive the formula for its elongation considering its own weight ONLY. Show the unit of every variable. 2 ft B O L = 4 ft A = 0.5 in.² E = 29 x 106 psi Fig. 2 3 ft [P C 1.75 in. 1.75 in. -Sin.- Fig, 4 A E Aluminum L = 3 ft A=0.75 in E= 10 x 10 psi 20-30- Rubber 1200 lb Fig. 3 B Bronze L = 4 ft A = 0.25 in.² E=12x 10 psi 2 ft2 ft-
Transcribed Image Text:PROBLEM SOLVING: 1. A square steel tube below is used to sustain a compression load of 480 KN. If the steel square tube have a compressive strength of 180 MPa and a side of 100mm, determine the thickness of the tube. The rigid bar ABC is supported by a pin at A and a steel rod at B. Determine the largest vertical load P that can be applied at C if the stress in the steel rod is limited to 35 ksi and the vertical movement of end C must not exceed 0.12 in. Neglect the weights of the members. 3. The rigid bars AB and CD are supported by pins at A and D. The vertical rods are made of aluminum and bronze. Determine the vertical displacement of the point where the force P = 10 kips is applied. Neglect the weights of the members. 4. Two 1.75-in-thick rubber pads are bonded to three steel plates to form the shear mount show in the figure. Find the displacement of the middle plate when 1200-lb load is applied. Consider the deformation of rubber only. Use E = 600 psi and v= 0.45 for rubber. 5. A uniform bar of length L, cross-sectional area A, and a unit mass p is suspended vertically from one end. Derive the formula for its elongation considering its own weight ONLY. Show the unit of every variable. 2 ft B O L = 4 ft A = 0.5 in.² E = 29 x 106 psi Fig. 2 3 ft [P C 1.75 in. 1.75 in. -Sin.- Fig, 4 A E Aluminum L = 3 ft A=0.75 in E= 10 x 10 psi 20-30- Rubber 1200 lb Fig. 3 B Bronze L = 4 ft A = 0.25 in.² E=12x 10 psi 2 ft2 ft-
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