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Ga. amendment to fire wall structural stability.

Discussion in 'Georgia' started by georgia plans exam, Jul 17, 2015.

  1. georgia plans exam

    georgia plans exam Silver Member

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    Ok. I have a typical core-board type 2-hour fire wall assembly U336, often used in townhomes here, being proposed to create separate buildings to comply with Table 503 for an I-1 project. I am asking for evidence that this wall will pass the 8 lb/ft² requirement found in the 2014 Georgia State Amendment to 2012 IBC Section 706.2. I am also asking for some details as to how the corridor door passing through this assembly will be supported when the construction on either side collapses. Has anyone been able to pass this particular wall assembly under similar circumstances? I am used to seeing CMU walls in these cases and I suspect that there is a good reason why. Thanks. GPE
     
  2. steveray

    steveray Sawhorse

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    The door should be supported or integral to the firewall...The firewall is not allowed to fall down...Door maintained....Devil is in the details (joint systems, connections, etc.) I can't say as I have seen that particular situation, but it seems possible.
     
  3. cda

    cda Sawhorse

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    can you post the 706.2 wording?
     
  4. georgia plans exam

    georgia plans exam Silver Member

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    *Revise Section 706.2 'Structural stability to read as follows: "706.2 Structural stability. Fire walls shall be designed to meet the requirements of Chapter 16 under non-fire conditions. Fire walls shall also be designed to have sufficient structural strength and stability under fire conditions to allow collapse of construction on either side without collapse of the wall while being subjected to a horizontal ultimate wind pressure, Pnet = 8 lb/ft² for the duration of time indicated by the required fire-resistance rating or shall be constructed a double fire walls in accordance with NFPA 221, where: Pnet = Ultimate design wind pressure to be used in determination of wind loads on buildings or other structures or their components and cladding, in psf (kN/M²). (effective January 1, 2014)" GPE
     
  5. cda

    cda Sawhorse

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  6. north star

    north star Sawhorse

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    = $ = $



    The OP stated it is an I-1 type project. :D $ = $ =
     
  7. cda

    cda Sawhorse

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    What type of I-1 is this?
     
  8. cda

    cda Sawhorse

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    O

    Close........
     
  9. georgia plans exam

    georgia plans exam Silver Member

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    It is an assisted living facility and yes, cda, U336 is similar to the DensGlass link that you posted. Thanks. GPE
     
  10. cda

    cda Sawhorse

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    assisted living as with light nursing care?

    and why the walls??? to break up the building or other?
     
  11. cda

    cda Sawhorse

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    I do not see how the proposed wall can even come close to meeting 706.2
     
  12. georgia plans exam

    georgia plans exam Silver Member

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    Me either. I am waiting for a response from the RDP. GPE
     
  13. georgia plans exam

    georgia plans exam Silver Member

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    Update: They opted to go with the U210. GPE
     

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