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Columns selection

  1. Aug 17, 2009 #1
    Hi all,

    I need some help.

    Select the lightest wide flange section that can be used as a steel column 7m long tosupport an axial load of 450kN with a factor of safety of 3. Use 200MPa as the limitof elasticity, 200GPa as the modulus of elasticity and assume that the column issimply supported.

    I have a printout with my assignment of universal columns dimensions and properties. I dont reall yknow what i'm supposed to be working out here.

    Can any one help?

    Thanks

    Emma
     
  2. jcsd
  3. Aug 18, 2009 #2

    nvn

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    Science Advisor
    Homework Helper

    Hi, Emzielou83. There is a template you must use when you post a question. You must list relevant equations yourself, and you must show your work. Then someone might check your math. Is this a test question? Also, engineering coursework questions go https://www.physicsforums.com/forumdisplay.php?f=158") states that there should always be a space between a numeric value and its following unit symbol. E.g., 200 MPa, not 200MPa. You can see this by looking in any text book.
     
    Last edited by a moderator: Apr 24, 2017
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