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by calculating I=1/12bh3
This question makes no sense. A 90 lb load per sq. ft. refers to an area. To calculate the stresses on beams supporting an area you have to know the spacing between adjacent beams as well as the span. p.s. This qn when fixed belongs in mechanical engineering.
Calculate the area of the room. Calculate the area of the window (or whatever opening) Room Area*100/Window Area
It is not possible to calculate the area given only the volume.
Average area
Structural steel members are the I-beams which consist second moments of area (moment of inertia of plane area), it allow them to be very stiff in respect to their cross-sectional area.
form_title=structural steel beams form_header=11433 For what project will you be using the beam?*= () New construction or addition () Remodel/retrofit What is the beam going to support?*= () Deck () Roof structure only () Roof and one floor above () Roof and two floors above () Other () Don't Know In what area is the beam being used?*= () Above doorway or window opening () Above garage door opening () At fireplace opening () Supporting hot tub on a deck () Supporting floor structure () In place of a load-bearing wall () Other
For surface area of steel bar= pi*diameter*length For cross-sectional area of steel bar= pi (dia)^2/4
by calculating I=1/12bh3
OD square .x .2983 x OAL = area of a billet of steel
That is impossible to answer as paint is applied to a surface and while you have told us the WEIGHT of the steel to be painted, the information we need to know is the surface area of the steel.
My= As*Fy*Jd As= Area of steel reinforcement (tensile steel only) Fy= yield strength of steel Jd= moment arm
If the bar is circular then it is: pi*radius square
Beams are used when you are driving with no one in the affected area, and you lack the extra light that you would normally have when in "town" or suburban area.
If the steel rod has a circular cross-section - the usual case - you can use the formula for a cylinder. Since the area of the base is quite small, it can be ignored - just calculate length x diameter x pi.
This question makes no sense. A 90 lb load per sq. ft. refers to an area. To calculate the stresses on beams supporting an area you have to know the spacing between adjacent beams as well as the span. p.s. This qn when fixed belongs in mechanical engineering.
Formula for steel bar weight per meter = D2/162 where D is diameter of bar