1. Not finding help here? Sign up for a free 30min tutor trial with Chegg Tutors
    Dismiss Notice
Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

PLease help me in solving this Truss

  1. Oct 22, 2005 #1
    fig 6-12)
    Members AB and BC can support a max compressive force of 800 lb. and members AD,DC and BD can support a max tensile force of 1500 lb. If a=10 ft determine the greatest load "P" the truss can support.



    My dear friends!!

    the above truss question has become a headache for me. I know how to solve truses but if you see in this question, the load P you have to determine, now this is i just cant able to do. Please help me, give me some hints so that i can solve this question. PLeasee


    I shall be thankful to you for this act of kindness
     

    Attached Files:

    • 6-12.JPG
      6-12.JPG
      File size:
      30.1 KB
      Views:
      117
  2. jcsd
  3. Oct 22, 2005 #2

    enigma

    User Avatar
    Staff Emeritus
    Science Advisor
    Gold Member

    Hi Shaiq,

    Can you please post what you've tried so far?
     
  4. Oct 22, 2005 #3

    Pyrrhus

    User Avatar
    Homework Helper

    Remember in a truss we assume there are only axial forces throught the members, because of the 3 truss hypotheses. They are giving you the value of each of the forces acting on the members, so you can use the node method on the place where the P load is applied and simply solve for P, remember it's in static equilibrium.
     
  5. Nov 1, 2005 #4
    Why dont you calculate using half of the truss you know you know AD and CD will have the same values (know that you will have to check for equilibrium when you are done to be sure you did not put all the load only in one of those two members) and then do it like Cyclovenom said
     
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Have something to add?



Similar Discussions: PLease help me in solving this Truss
Loading...