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4.1.8.17.(8)
ApplicationIntent
OS2OP2OS2OP2OS2OP2OS2OP2OS2OP2+
ObjectiveOP2 Structural Sufficiency of the Building
Attribution
[F20,F22-OP2.3,OP2.4] Applies to portion of Code text: “Connections to the structure of elements and components listed in Table 4.1.8.17. shall be designed to support the component or element for gravity loads, shall conform to the requirements of Sentence 4.1.8.17.(1)…”
Application
Application 1: 
Design of connections of elements and components listed in Table 4.1.8.17. to the structure, for earthquake design.
This applies to buildings described in Sentence 1.3.3.2.(1) of Division A and to buildings to which Part 9 applies [see Sentence 1.3.3.3.(1) of Division A for application of Part 9] that are required to be designed in accordance with the requirements of Part 4.
Exceptions: 
except as stated in:
  • Sentence 4.1.8.1.(1), which applies to areas where the spectral response acceleration amplified for site conditions equals the floor levels found in low seismicity regions with Site Class C (i.e. very dense soil and soft rock ), and
  • Sentence 4.1.8.17.(2), which applies to the following elements of non-post-disaster buildings in areas where IEFaSa(0.2) is less than 0.35:
    • horizontally cantilevered floors, balconies, beams, etc.
    • suspended ceilings, light fixtures and other attachments to ceilings with independent vertical support
    • masonry veneer connections
    • access floors
    • masonry or concrete fences over 1.8 m tall
    • machinery, fixtures, equipment, ducts, and tanks (including contents)
    • flat bottom tanks (including contents) attached directly to a floor at or below grade within a building,
    • pipes, ducts, cable trays (including contents)
    • electrical cable trays, bus ducts, conduit,
    • rigid components, and
    • flexible components.
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Intent
Intent 1: 
To limit the probability that the connections will not be designed to transfer the attachment forces, Vp, and the gravity loads arising from the components they support, which could lead to failure of the connection, which could lead to:
  • components of the building falling or sliding, which could lead to damage to the building, or
  • damage to and functional failure of a component's system, which could impede the intended use and occupancy of the building.
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