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Homework Help: Concrete column and ultimate compressive stength

  1. Apr 22, 2012 #1
    1. The problem statement, all variables and given/known data
    a concrete column, 4.5m long, is reinforced with steel bars and carries a compressive load of 58 tonnes. The overall cross-sectional area of the column is 0.1m squared and the steel reinforcement accounts for 5 percent of this area. take young's modulus for steel as 200 GN/m squared, young's modulus for concrete as 20 GN/m squared and ultimate compressive strength
    for concrete 50 MPa. calculate,

    the stress taken by the steel?

    change in length of the column?

    the factor of safety based upon the UCS for concrete?
  2. jcsd
  3. Apr 22, 2012 #2


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    Science Advisor
    Homework Helper

    welcome to pf!

    hi emma louise! welcome to pf! :wink:

    show us what you've tried, and where you're stuck, and then we'll know how to help! :smile:
  4. Apr 24, 2012 #3
    hiii:) i haven't tried anything yet, im just wondering how to start it?
  5. Apr 24, 2012 #4


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    Staff: Mentor

    You start by posting the Relevant Equations. Does Young's Modulus have anything to do with stress and strain?
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