Question 3 A steel column of hollow circular cross section is supported on a circular steel base plate and a concrete pedestal. The column has outside diameter d= 250 mm and supports a load P= 750 kN. (a) If the allowable stress in the column is 55 MPa, what is the minimum required thickness t? Based upon your result, select a thickness for the column. (Select a thickness that is an even integer, such as 10, 12, 14, ..., in units of mm.) (b) If the allowable bearing stress on the concrete pedestal is 11.5 MPa, what is the minimum required diameter D of the base plate if it is designed for the allowable load Pallow that the column with the selected thickness can support? d Column Base plate

Q: H h d

A: To solve this, we need to find the permissible load at critical section that is at the section where…

Q: 400 Material A 300 Material B 200 Material A 100 0.002 0.004 0.006

A: Solution: B) Given Data: Tensile load=88 kNElastic modulus of material A=150 GPaElastic modulus of…

Q: Three round bars welded together axially loaded as shown. Find the normal are stress in each bar if…

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A: For steel cube,Yield stress=250N/mm2To find the factor of safety according to maximum strain energy…

Q: A typical aluminum-alloy scuba diving tank is shown in the figure. The outside diameter of the tank…

A: The given figure is shown below:

Unit Conversion

Standard units are also called SI units. SI units are used for measuring a physical quantity satisfying certain conditions. There are two types of units: fundamental units and derived units. Fundamental units are physical quantities that are independent, that is, they do not depend on other quantities like mass, length, or time. There are plenty of quantities in our lives which need to be measured and compared. Measuring is the comparison of a particular physical quantity with its reference value. A unit is a measure of a fixed physical quantity. A physical quantity is the product of a unit and the numerical value we need to compare with.