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Single Degree-of-Freedom Systems

  1. Feb 28, 2014 #1
    1.A 3 m high, 8 m wide single-bay single-storey frame is rigidly jointed with a
    beam of mass 5,000 kg and columns of negligible mass and stiffness of EIc =
    4.5×103 kNm2. Calculate the natural frequency in lateral vibration and its
    period. Find the force required to deflect the frame 25 mm laterally.
    Ans: 4.502 Hz; 0.222 sec; 100kn.



    ƒ=(1/2π)*(√(k/m)

    How can I get the k from given values.
     
  2. jcsd
  3. Feb 28, 2014 #2

    BvU

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    Hope you don't post any more exercises under this same name.
    Welcome to PF and please use the template. If you don't understand why, read the guidelines.
     
  4. Feb 28, 2014 #3

    BvU

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    I can imagine a zillion of ways to connect s-b s-f frames with a beam and unknown number of columns. What is it we are talking about ? Were you provided with a drawing of the thing ?
     
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