Steel Design - Beam-column design - Worked Example - SD424

แชร์
ฝัง
  • เผยแพร่เมื่อ 22 ธ.ค. 2024

ความคิดเห็น • 17

  • @SuperJOHN1223
    @SuperJOHN1223 2 ปีที่แล้ว +1

    Thanks so much, prof. Very useful info. Highly appreciated

  • @stooncol619
    @stooncol619 5 หลายเดือนก่อน +1

    That was really helpful
    Thank you very much

  • @recebaga9382
    @recebaga9382 4 ปีที่แล้ว +1

    thank you teacher, appreciate what you are doing, very valuable videos

  • @michaelwest-russell1700
    @michaelwest-russell1700 3 ปีที่แล้ว

    Great descriptive lecture! Quick question - when you reach the lateral-torsional buckling equations (18:42), you state that fe = min(fey, fez, feyz), however in SANS 10162-1:2011 section 13.3.2a) states that fe = min(fex, fey, fez) for doubly symmetric sections. Why is this?

    • @richard_walls
      @richard_walls 3 ปีที่แล้ว

      Dear Michael.
      Hope all is going well in practice since leaving Stellenbosch.
      You are correct that for a section in compression the resistance is based upon fex, fey and fez. However, in Section 13.8.2 for beam-columns it specifically notes that compressive resistance is based upon "weak-axis or torsional-flexural buckling". However, for a doubly symmetric section feyz = min (fey, fez) so it actually does not matter.
      Thanks
      Richard

    • @michaelwest-russell1700
      @michaelwest-russell1700 3 ปีที่แล้ว

      @@richard_walls Thank you, an important clause that I missed!

  • @learnmathwithprivilege
    @learnmathwithprivilege ปีที่แล้ว

    What is the effect of flange restraint in the middle of the section when we have a uniaxial bending .

    • @richard_walls
      @richard_walls ปีที่แล้ว

      It prevents lateral torsional buckling (for Mr) and flexural buckling (for Cry).

  • @GenaEnSamIAm
    @GenaEnSamIAm 3 ปีที่แล้ว

    Awesome lecture!

  • @phakamileskosana580
    @phakamileskosana580 4 ปีที่แล้ว

    How would I be able to check the minimum section size that will meet all of the checks without going through the process of elimination for each individual section?

    • @firesun
      @firesun  4 ปีที่แล้ว +1

      Most commonly LTB governs behaviour. So you could check that first. Otherwise, you need to setup a spreadsheet and then can quickly check different sizes. Beam-column design is something you only do by hand at university (to learn the principles), and after that you automate the process.

  • @structuralchannel2507
    @structuralchannel2507 2 ปีที่แล้ว

    Hii sr what will be the value of ω2 when one end is free and other end is fixed..
    Like cantilever in hoarding strutures

    • @firesun
      @firesun  2 ปีที่แล้ว

      When the compression flange at one end lacks proper lateral support then conservatively use w2 = 1.0

  • @paneristovski5512
    @paneristovski5512 4 ปีที่แล้ว

    Nice work.Can you to make examples for steel connections on elevated temperatures according eurocode.Tanx

    • @firesun
      @firesun  4 ปีที่แล้ว +3

      Possibly when we run our course in the future. Thanks

  • @GenaEnSamIAm
    @GenaEnSamIAm 3 ปีที่แล้ว +1

    Baie Baie dankie!!

  • @khoryonghau2594
    @khoryonghau2594 3 ปีที่แล้ว

    very good