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Recent content by JonathanDavis

  1. JonathanDavis

    Time History Analysis Of 2D Frame Using MATLAB (El Centro)

    thanx. Do you know a book,source or a computer program to find the right mathematical formulation?
  2. JonathanDavis

    Time History Analysis Of 2D Frame Using MATLAB (El Centro)

    No...The Result differs from SAP.I know something's wrong with {fg}. I didn't find anything in Structural Dynamics books. most of them use modal analysis to this kind of analysis. [sad]
  3. JonathanDavis

    Time History Analysis Of 2D Frame Using MATLAB (El Centro)

    Ug in m/sec2 (earthquake acceleration)
  4. JonathanDavis

    Time History Analysis Of 2D Frame Using MATLAB (El Centro)

    Hi, Consider a 2D frame like below which excited by el Centro earthquake: I'm Using Direct Time Integration To obtain response of structure. I verified my program with SAP200 when a Harmonic load applied in node2 and results are the same. but in this case, i.e. base excitation, i have a...
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