BEAM DESIGN: Finding a Required Section Modulus to Choose Lightest Acceptable I-Beam; Minimum Height

LECTURE 18:
Playlist for ENGR220 (Statics & Mechanics of Materials):
• ENGR 220: Statics and ...
This lecture was recorded on October 16, 2019. All retainable rights are claimed by Michael Swanbom.
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Very clear and straight forward presentation.Easily understand the principles and importance of an engineering design concept.

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[@netnitin]

Hi TheBom_PE, Hi want to build a platform for keeping 2000 Liters x 2 water tanks. Platform is approx 5 x 10 feet. Pillars will be in brick mortar and I want I beams on it to support load. What sizes of i beam and how many in numbers to use?

[@dhillon3267]

dumb question, but when we used a beams own weight for second time, do we have to again account for its self weight, cause now its heavier than the first time

[@TheBomPE]

Not a dumb question...yes if you have to switch to a beam with heavier weight, it is a good idea to update the self-weight number and check to make sure that the new beam is still adequate.

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[@davidcruz4611]

I think a better word to use vs. deformation is deflection.

[@Rajkumarraj-su3kw]

Hi sir ..there is one question in one of my exam ..they asked to select the correct A36 steel Universal beam which can carry 150 kn-m moment ..and also they given four options of UB sizes with Sx value ..how can I find it ..I tried same procedure to find Sx as u mentioned in this video but Sx value not matching ..I have considered allowable stress for A36 63 MPa and 150 knm moment they already given..but my final answer coming .please suggest 1208 cm3 ..but all option is like 780cm3 , 569cm3 like that ..please help In this

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