Fill in the blanks: A hollow cylindrical column is placed on a steel plate on a concrete pedestal, if it supports a compressive load of 0.75 MN as shown in the figure and the stress in the column is limited to 55 MPa, Calculate the desirable wall thickness of the column given that the diameter of the outside wall is 25 cm. Column Base plate

Fill in the blanks: A hollow cylindrical column is placed on a steel plate on a concrete pedestal, if it supports a compressive load of 0.75 MN as shown in the figure and the stress in the column is limited to 55 MPa, Calculate the desirable wall thickness of the column given that the diameter of the outside wall is 25 cm. Column Base plate

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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A steel column of hollow circular cross section shown in Figure is supported on a circular steel base plate and concrete pedestal The column has outside diameter 220 mm and a wall thickness of 15 mm. It supports an axial load of 680 kN.a. Determine the bearing stress induced by the column to the base plate in MPa.b. If the allowable bearing stress on the pedestal is 10MPa, determine the required diameter of the base plate in mm.
The following figure shows the critical position of a crane that supports 2.5 Tons of load by means of a chain. You are delegated the responsibility of building a crane with similar geometric characteristics and load capacity. The diagram of free body of the crane arm can be redrawn as follows. (check the attached image "fbd") Assuming that the crane arm will be made of steel with yield stress sigmaY =220 MPa and that you must consider a safety factor of F.S.=1.5, propose a profile from the following catalog for the manufacture of the crane arm. Ignore the effects of shear forces on this element. On the other hand, it is very important that you consider the effects of axial loads. Commercial profiles for arm construction. (Check image "profiles")
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