CSI ETABS - 07 - Stiffness Irregularity Check (Soft Story and Extreme Soft Story check)

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  • Опубликовано: 13 дек 2024

Комментарии • 62

  • @civilmdc
    @civilmdc  5 лет назад +3

    To make a RELATIONSHIP, Don't forget to press the subscribe button with bell icon to get the latest notifications. My channel :)
    ruclips.net/channel/UCw9kSuR1bTFBmaMEyD_DXvQ

  • @anandgor4181
    @anandgor4181 Год назад +1

    Very useful information provided by you. Thank you

  • @doomstadddahk553
    @doomstadddahk553 26 дней назад

    great, i want to ask, how to check story stiffness in Robot SAP?

  • @vinayanasane2816
    @vinayanasane2816 5 лет назад +1

    But how to make those formula in Excel....

  • @BashirAhmed-jo4zq
    @BashirAhmed-jo4zq 3 года назад

    Nice Series of Videos, really helpful for beginners.
    Be blessed Bro

  • @s2lyt287
    @s2lyt287 4 года назад +1

    outstanding work

  • @muhammadazeem2684
    @muhammadazeem2684 5 лет назад +1

    Excellent Tutorial...

  • @m.shaihanayub7179
    @m.shaihanayub7179 5 лет назад +1

    Nice work.
    Plz include retaining walls in buildings including their analysis and design.

    • @civilmdc
      @civilmdc  5 лет назад +3

      Thanks,
      I have plan to complete the CSI ETABS Course, i will try to include basement walls (Retaining walls) in this course....

  • @jhononanespinozatintaya9629
    @jhononanespinozatintaya9629 4 года назад

    Excelente tutorial. El reporte que se obtiene del Etabs, ¿es el acumulado de cada piso?

  • @ing.pedrorobertopouerietmo4086
    @ing.pedrorobertopouerietmo4086 7 месяцев назад

    Excelent, thanks you.

  • @molayadhikary2553
    @molayadhikary2553 5 лет назад

    Can you please help me ...
    I am downloaded staad pro connect edition 22.0 ... from your site ..can I install it on 86bit or 32bit pc??
    Please help me🙏

  • @skillhnter1303
    @skillhnter1303 2 года назад

    JAZAKALLAH

  • @juanjosegonzalezpalacios1250
    @juanjosegonzalezpalacios1250 2 года назад

    Que hago si la tabla me sale en blanco y nose por que, ayuda por favor

  • @hishamabueisheh3296
    @hishamabueisheh3296 4 года назад

    I have a problem that Story stiffness did not appear when I open structural results from tables!!
    And I did not know why?

  • @AA-gi2ti
    @AA-gi2ti 11 месяцев назад

    Nice work! why the link "Stiffness Irregularity (soft story) excel sheet" is not working?

    • @civilmdc
      @civilmdc  11 месяцев назад

      Website updated, now it is working

  • @mohaiminulhaque9064
    @mohaiminulhaque9064 4 года назад +1

    Unable to download the excel sheet. Can u pls update the link?

    • @civilmdc
      @civilmdc  4 года назад +1

      Sorry for Inconvenience,
      All the links have been updated, Now you can download the excel sheets in the description of the videos.
      Thanks

    • @mohaiminulhaque9064
      @mohaiminulhaque9064 4 года назад

      Thank u

  • @gustavolazaro1639
    @gustavolazaro1639 4 года назад +1

    Hello, I have a doubt, when checking the story stiffness in the earthquake in the X direction, the Stiffness Y column does not result 0, and when checking stiffness in Y, the X column is also not 0

    • @civilmdc
      @civilmdc  4 года назад

      Stiffness is a constant value...
      If you apply 1 kN force in X-direction or 100 kN..
      Stiffness will remain same...
      So that's in Y-direction it will come as it is....
      Due to constant value

  • @mohaiminulhaque9064
    @mohaiminulhaque9064 4 года назад +1

    Is it necessary to include infill wall in the model? Bcoz it will add stiffness to the structure. So if there is an open ground floor and other story have infill wall then the ground floor may act as soft story. In that case, how to check soft story?

    • @civilmdc
      @civilmdc  4 года назад

      Answer 1
      First of all it is not necessary....
      Answer 2
      2nd you have to calculate in the same as I have shown in this video.

    • @2020.Ahmed-
      @2020.Ahmed- 4 года назад +1

      Actually Etabs is not accurate in calculating storey stiffness because it does not consider infill walls. So in this case what you have done is not accurate. In case of having infill walls in above stories and open frames at ground level, the software consider all stories same but in reality infill walls have stiffness but the problem is how to calculate?

  • @cengineer8756
    @cengineer8756 Год назад

    In 2 storey with elevated ground floor of 1.5m, I got soft storey in the first floor when actual roofing loads (steel trusses and roofing sheets) are included in the roof beam, but when I modeled roof deck (with minimum design loads), there's no soft storey (with ratio 0.8-0.85 > 0.7). So, I observed that when the weight carried by the roof beam is close to the weight carried by 2nd floor beam, there is no soft storey. When the weight carried by the beam is lighter, there is soft storey in the 1st floor. Why is that?
    And also when I increase the column height in the 2nd floor, no soft storey exists.

    • @civilmdc
      @civilmdc  Год назад +1

      No need to check for soft story .... For 2 story building

    • @cengineer8756
      @cengineer8756 Год назад

      @@civilmdc why sir?

    • @cengineer8756
      @cengineer8756 Год назад

      I live in a country with strong earthquakes. There are many two storey houses collapsed due to soft storey in the first floor

  • @cengineer8756
    @cengineer8756 Год назад

    How about only two storey building? The Upper Storey Ratio value is greater than 0.7, but failed in "Upper 3 Storey Ratio" which is less than 0.8. Since, there is only one storey existing above the first storey, should I ignore the 0.8, and only use 0.7 for soft storey irreg?

    • @civilmdc
      @civilmdc  Год назад

      No need for 2 storey

  • @yohanesingkiriwang6571
    @yohanesingkiriwang6571 4 года назад +1

    Sir, how to get the story lateral strength in ETABS ? Thanks in advance

    • @civilmdc
      @civilmdc  4 года назад

      You can get lateral stiffness of each story

    • @yohanesingkiriwang6571
      @yohanesingkiriwang6571 4 года назад

      @@civilmdc I see.. lateral stiffness of each story can be obtained by dividing the story forces with story drift? And the lateral stiffness is directly proportional to the the lateral story strength?

    • @2020.Ahmed-
      @2020.Ahmed- 4 года назад

      Storey stiffness, K=EI/L
      Becareful storey stiffness is different from storey strength

  • @hr_design_studio
    @hr_design_studio 4 года назад +1

    Sir can you provide this excel sheet

    • @civilmdc
      @civilmdc  4 года назад +1

      Sure...
      Dear excel sheet is present under the description of each video

    • @hr_design_studio
      @hr_design_studio 4 года назад

      @@civilmdc thank u so much sir

  • @syedkhaja100
    @syedkhaja100 4 года назад +1

    unable to download the excel sheet

    • @civilmdc
      @civilmdc  4 года назад

      Sorry for Inconvenience,
      All the links have been updated, Now you can download the excel sheets in the description of the videos.
      Thanks

    • @britishtalent4317
      @britishtalent4317 Год назад

      Bundle of thanks bro... Allah bless you more. And thanks a lot for excel sheets 💕💕

    • @AHMADSHAHEEN-t7u
      @AHMADSHAHEEN-t7u Год назад

      ​@@civilmdcUnable to download excel files sir

  • @syedsohail1324
    @syedsohail1324 4 года назад +1

    can we have a video to check weak story also

    • @civilmdc
      @civilmdc  4 года назад

      CSI ETABS Essential Training Series full course
      ruclips.net/p/PL0h14oMuZXQ5PXbux0l80ox-8gPwcBl5c
      Dear, the video in which you have commented, will give you all about how to check soft story in buildings ... Please see full video and excel sheet download link is given in the description.

    • @syedsohail1324
      @syedsohail1324 4 года назад

      @@civilmdc ubc says about weak story if the story strength is less than 80% of the story above can you please explain about this

  • @eboy4686
    @eboy4686 2 года назад

    Dear Sir, Thank you for the video. I have a question; how can I calculate STIFFNESS in X-DIRECTION manually for a simple 2D steel building frame?

    • @civilmdc
      @civilmdc  2 года назад

      You have to calculate stiffness of each story by using stiffness formulas... That is given in your earthquake engineering books

    • @eboy4686
      @eboy4686 2 года назад

      @@civilmdc Dear Sir, thank you very much for the rapid response. I have a follow-up question; I have calculated the global stiffness matrix for a steel frame but I'm confused about calculating the stiffness for a particular floor level, can you please be more elaborate on what formula you are referring to. Or please provide a link to any documentation or paper related to stiffness calculation for a particular storey and direction.

  • @naumankhan5424
    @naumankhan5424 3 года назад

    Thanks a lot sir .. Really helpful

  • @riyamaji3372
    @riyamaji3372 7 месяцев назад

    Is the process same for water tank to check stiffness

  • @fawadahmad4419
    @fawadahmad4419 8 месяцев назад

    share excel sheet link pease

    • @civilmdc
      @civilmdc  8 месяцев назад

      The link is given in the description of the video

  • @fawadahmad4419
    @fawadahmad4419 8 месяцев назад

    how can we download excel sheet

    • @civilmdc
      @civilmdc  8 месяцев назад

      Download link given on the description of the video

  • @vasistavarma9273
    @vasistavarma9273 3 года назад

    pls provide google sheets

    • @civilmdc
      @civilmdc  3 года назад

      Dear link is given in the description of this video