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Recent content by stressed

  1. stressed

    Edge constraints with Plane-stress

    What gaps? Please give more info and example
  2. stressed

    SAP2000 - Plate loading

    shino, then mesh your shell element via gridline meshing or whatever method you choose. A "patch" load is an area load on a meshed finite element.
  3. stressed

    Strand7 transition

    I'd be curious to learn if even 1 thing can be done in Strand that couldn't be done in SAP2000. From what I've seen, SAP has all the analysis capabilities, with design code checks not possible with Strand. Strand seems to suck badly with user interface issues and design code requirements.
  4. stressed

    Does SAP 2000 Design for Torsion ?

    Josh, I stated that SAP calculates torsion. That statement still remains ENTIRELY correct. You used that statement as a cheap attempt to tout a questionable sales advantage of your Risa 3D software for handling warping, an "advantage" which may be wildly conservative or unconservative depending...
  5. stressed

    Does SAP 2000 Design for Torsion ?

    Steel member reactions under torsion can be complex since torsion and warping usually occurs with shear and bending moments. To my knowledge, the only reliable approach for analysis of warping using beam/line elements is to have a warping degree of freedom, 7 DOF instead of 6. I believe Abaqus...
  6. stressed

    SAP2000 - Plate loading

    Late reply to your question, but yes, you can assign point loads or area "patch" loads on SAP area elements. The key is to mesh the area in order to incorporate those load assignments - in other words, you can't simply draw a special joint on a SAP area element and assign a load to it. You would...
  7. stressed

    Damping in Response Spectrum Analysis

    Every response spectrum function that you define can have its own damping ratio
  8. stressed

    Does SAP 2000 Design for Torsion ?

    As you probably know, torsion is always accounted for in analysis. For design, torsional strength and allowable torsional strength is automatically determined only for closed sections like pipes and tubes.. and that design check started in the newer steel design codes as I recall..I think...
  9. stressed

    SAP2000 Report Output

    gh, you seem to have read the 2nd paragraph of my post, but skipped over the first paragraph where I explained how to do exactly what you are asking for using the "Select Load cases" option. Please reread
  10. stressed

    Post Bifurcation analysis of a column

    Your question is not so clearly worded. When you say "bifurcation" are you referring to geometric nonlinear behavior (buckling), or material nonlinear behavior, or both? Is this brittle material or ductile? More information is needed in order to reply.
  11. stressed

    Solid Modeling Output

    I have not heard before the approach to design reinforcement based on stresses. However, you can obtain integrated shears and moments by using section cuts. That information from section cuts should help you determine required reinforcement. SAP also offers design of irregular concrete...
  12. stressed

    MODELATION OF SOIL PRESSURE ON MODAL SPECTRUM ANALYSIS

    If you model the soil as an assigned load load, define a load case which includes selfweight and pressure load and change that load case to nonlinear P-Delta. Next, definee a modal dynamic case using "Stiffness at end of nonlinear case" and select the nonlinear load case with selfweight and...
  13. stressed

    SAP2000 Report Output

    In my version 18, all load cases and combos are selected by default for reporting output tables. If after running your analysis you go to Display menu>Show tables, click the "Select load cases" button. There you can pick and choose which load combos and cases to include in your reports. The...
  14. stressed

    how to model a 2" gap between cap and the pipe pile in Pushover

    It's not so much a "gap" as it is a change of section properties requiring that you define and model different sections - one section composite steel pipe filled with reinforce concrete, and another frame/column element which is reinforced concrete only (without pipe) going into the pipe cap...
  15. stressed

    How to model a "concentrated" area load on top of a larger area

    When you say steel "covered with concrete" are you referring to concrete cladding/fireproofing on the steel beams, or do you mean concrete slab? If concrete slab, what are you trying to accomplish with the None (null) area load? you didn't say how you modeled the concrete floor. Did you use...

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