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Recent content by Matrix

  1. Matrix

    Good drafting program for structural engineering firm?

    Try the Intellicad from RC Task. It is an AutoCAD clone. Writes and reads native dwg. Accepts lisp commmands and the enviorment is just like autocad is for 10% of the price. You wont be dissapointed for sure. Hope its helps Marx Pio
  2. Matrix

    Cracks in concrete roof slab

    3 mm thick? I think it is most than maximum acceptable. You need to check the cause of this cracks. If it was cause by evaporation of the water or retraction. Others causes should be checked like stiffness, load and the structural slab detaling. Even well adensed and correct aditived concrete...
  3. Matrix

    Just a opinion about truss node

    How can I explain the fact that a node in a ideal truss shape have 3 degree of freedom( 2 translations and one rotatios above z axis) but in the considerations for structural analysis we only refers only just two translations degrees of freedom and don´t mention the rotation(I know that the...
  4. Matrix

    Flowchart or VB routine

    I need a flowchart or VB routine for matrix inversion using Gauss-Jordan Method. Link or text reference would be good. Thx in advance Matrix
  5. Matrix

    Wanted: a little professionalism here (yes this is a rant)

    Take it easy man, We are all from mankind, full of imperfections and foolishness. I agree with you but our works are hard enough to keep us with the same army discipline all the time. Don't take the 'u's and others things so seriuosly. Cheers, Matrix
  6. Matrix

    How can I measure the lenght of a spline?

    Thanks a lot! Matrix
  7. Matrix

    STRUCTURAL SOFTWARE

    Hi, I use CypeCAD for concrete, Multiframe, SteelDesign and SectioMaker for steel MP
  8. Matrix

    Recent graduate......now what?

    Hi, I'm a structural engineering since '84 and belive me you'll never be appart of learning, be it at school, researching at books, libraries or in the internet. Don't study just the subject you think that will be profitable. Learn most what you like to do. Do what you like and you'll never...
  9. Matrix

    Is there more to engineering than this.?

    Hi, If you can't deal with your superiors, you should keep the work for 3 years for helping you developing marketing and professional skills, and make your own business, doing just what you want. But be aware that instead having 2 boss you will have the whole world as boss (your expected and...
  10. Matrix

    Professional Dilemna

    Hi, It's not easy but, Tell him that you need the same opportunity he needed some years ago. If he understands it, the thing is resolved, if not you don't have a good boss and you should leave him anyway. Matrix
  11. Matrix

    How can I measure the lenght of a spline?

    Hi all, Can I measure the lenght of a spline or a pline? Thanks in advance Matrix
  12. Matrix

    Stiffness Matrix Software

    Try the 'Structural Analysis on Microcomputers' - Chu-kia Wang, It is simple and powerful, you'll learn about Static, Stiffness matrix algorithm for constructing the global structure matrix and how to write your own codes (Basic) to do the job.
  13. Matrix

    Multiframe4D

    I discovered that we can draw the entire structure, 2D or 3D in AutoCAD14, explode all polylines, position the UCS icon on TOP view and export as DXF file. Import in Multiframe in the same units you've drawn and you can save time in modelling in MF graphical interface. I found it's more...
  14. Matrix

    Truss Joints: Pinned or Rigid?

    Do you assign the joints of a truss-type structure as pinned or rigid? I always use the joints as rigid but the static matrix is bigger and the analysis procedure is slower in order to calculate bending moments, shear and axial stresses. Does anyone noticed any problems in modelling trusses...
  15. Matrix

    Selection of a structural engineering software

    It's difficult to have just one soft for all porpouse. But I think that Multiframe4D, SectionMaker and SteelDesigner will help you a lot and it's probably the best price of the analysis software. Best Regards,

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