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  1. user277418

    Instability of very deep cast-insitu post-tensioned (PT) concrete continuous unrestrained transfer girders

    Finally, I am able to come back and reply :) Height of the column is about 13 m. What is far beyond the typical storey height. The problem I am facing right now is that even though I am able to calculate the rotational spring stiffness of the column support Eurocode doesn't state to what...
  2. user277418

    Instability of very deep cast-insitu post-tensioned (PT) concrete continuous unrestrained transfer girders

    The point is that the girder bottom is not restrained laterally
  3. user277418

    Instability of very deep cast-insitu post-tensioned (PT) concrete continuous unrestrained transfer girders

    The step of the columns is distances between the columns c/c along the girders. By other words spans/bays of the girders. And the steps are actually about 15 m instead of 10 m. My mistake. Will add the sketch a bit later. The diaphragms, I were mentioning, are the cross beams basically...
  4. user277418

    Trimmer bars for large slab openings

    Check out IStructE "Standard method of detailing structural concrete" 3rd or 4th edition And listen what @EngDM said. Check punching!
  5. user277418

    Instability of very deep cast-insitu post-tensioned (PT) concrete continuous unrestrained transfer girders

    Hi A case: A transfer structure of a building. Three parallel post-tensioned (PT) continuous transfer girders are holding several storeys frome above. The girders are formed from a web WIDTHxHEIGHT=0.8x2.5m + a PT slab 0.28 m thick on top (i.e. a composite T-section. Going to be casted in 2...
  6. user277418

    Rebar cages for concrete filled hollow section (CFHS) columns

    For those who might be interested to see how concreting is done A link to a video
  7. user277418

    STAAD vs others

    @WARose didn't want to be rude. Receive my apology if I was. Regarding my doubts that you are a real user. Amount of your posting pushed me to an idea that you are on a payroll on the forum (which is absolutely fine). Even if so, but if you indeed are a long-term user and answering in a good...
  8. user277418

    STAAD vs others

    @WARose ok real user. What else do you like in STAAD? Definitely should be more
  9. user277418

    STAAD vs others

    @WARose [lol] c'mon. Damage control? I really don't want to make the topic into what you hate in ... I am still hoping to see actual responses from real users about what they like in STAAD. From good... During the GUI presentation I have noticed pushover analysis among analysis tabs. This is...
  10. user277418

    STAAD vs others

    @SethGuthrie and @CarlosAguera I have looked how meshing works in STAAD. OMG [cry] I supposed that Robot had one of the most inconvenient meshing engines, but STAAD definitely overreached it. I haven't used software with such meshing engine since 2008. 3D solids without engine to mesh it just...
  11. user277418

    Rebar cages for concrete filled hollow section (CFHS) columns

    I have found answer to the 1st question. So simple [smile]
  12. user277418

    STAAD vs others

    @SethGuthrie and @CarlosAguera I want to take my words back regarding GUI of STAAD. Just were watching relatively recent (1 year ago) presentation of the Connect Edition. The GUI is quite fine. Could be better, but should be enough for most of engineers.
  13. user277418

    STAAD vs others

    @JoshPlumSE thank you for the review
  14. user277418

    STAAD vs others

    Sorry to say that, but I don't see the text input file as of some sort advantage. It definitely was in 90s I guess, but this train has left long time ago. I understand that from a program developer point of view all those fancy models are still boiling down to text files, but from a practicing...
  15. user277418

    Rebar cages for concrete filled hollow section (CFHS) columns

    @CDLD thanks. watched it when it was published
  16. user277418

    Rebar cages for concrete filled hollow section (CFHS) columns

    Thank you SteelTubes. Indeed a good article. I am aware of those issues. Chapter 4.2.1 of CIDECT design guide 7 is also a good reading for those who are interested.
  17. user277418

    STAAD vs others

    Just to be clear. I am not intended to shade STAAD. Just want to know it's strong sides. Currently what SethGuthrie has told doesn't sound like the very valuable functions missing in other products. I am looking forward for replies of actual happy users [bigears]. Tell your success story...
  18. user277418

    STAAD vs others

    Hi I never used STAAD before, but I used a lot of other similar software (SAP2000, ETABS, RFEM, Autodesk Robot, SCIA etc.). The thing is I might have to use it in the nearest future. Watched a couple of videos online about it. From the 1st look STAAD's GUI is like from the previous decade or...
  19. user277418

    Rebar cages for concrete filled hollow section (CFHS) columns

    Hi Are here factory guys who worked with CFHS columns? Can you tell me how rebar cages are usually fixed within concrete filled hollow section (CFHS) columns to achieve the required concrete cover between the reinforcement and inner surface of the hollow section? As far as I am imagining the...
  20. user277418

    A steel beam with full depth end plates. Most efficient way to model/design it for length tolerance

    Thank you all for sharing the valuable opinions and experience! I think I have got now the answer I have looked for.

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