The steel pipe is supported on the circular base plate and concrete pedestal. If the normal failure stress for the steel is (sfail)st = 350 MPa, determine the minimum thickness t of the pipe if it supports the force of 500 kN. Use a factor of safety against failure of 1.5. Also, find the minimum radius r of the base plate so that the minimum factor of safety against failure of the concrete due to bearing is 2.5. The failure bearing stress for concrete is (sfail)con = 25 MPa.
The steel pipe is supported on the circular base plate and concrete pedestal. If the normal failure stress for the steel is (sfail)st = 350 MPa, determine the minimum thickness t of the pipe if it supports the force of 500 kN. Use a factor of safety against failure of 1.5. Also, find the minimum radius r of the base plate so that the minimum factor of safety against failure of the concrete due to bearing is 2.5. The failure bearing stress for concrete is (sfail)con = 25 MPa.
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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The steel pipe is supported on the circular base plate and concrete pedestal. If the normal failure stress for the steel is (sfail)st = 350 MPa, determine the minimum thickness t of the pipe if it supports the force of 500 kN. Use a factor of safety against failure of 1.5. Also, find the minimum radius r of the base plate so that the minimum factor of safety against failure of the concrete due to bearing is 2.5. The failure bearing stress for concrete is (sfail)con = 25 MPa.
Transcribed Image Text:500 kN
-100 mm
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