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  1. SBSDesign

    Combined Axial & Bending Stress In Column

    Thanks Denial & Desertfox, Desertfox, You'll have to forgive my ignorance. It's 10yrs since I did HNC Building and 20 years since I did 'O' level maths!! The term 'quadratic equation' rings faint bells somewhere in the depths of my very dodgy memory. However, I haven't got the foggiest idea...
  2. SBSDesign

    Combined Axial & Bending Stress In Column

    Thanks Drej. Gave it a try, but it doesn't seem work.
  3. SBSDesign

    Combined Axial & Bending Stress In Column

    I have written an Excel spreadsheet to solve the equation fc/Pc + fbc/(Pbc(1-fc/Pe))<=1 It works by using the 'Goalseek' command in a macro to make the answer 0.99 (i.e. <1) by varying the value of fc. HOWEVER depending on where you start with the value of fc it can find up to 3 solutions to...

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