Back4.1.8.15.(4)

ATTRIBUTION:

Functional Statement:

F20

To support and withstand expected loads and forces.

Objective:

OS2.1

 

APPLICATION:

Effects of concurrent yielding of elements framing into columns or walls where earthquake actions can produce forces in columns or walls due to lateral loading along both orthogonal axes.
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.

INTENT:

To limit the probability that, where elements of the Seismic Force Resisting System are subject to forces from two loading directions, the potential for simultaneous yielding will not be taken into account, which could lead to structural failure, which could which could lead to harm to persons.

ATTRIBUTION:

Functional Statement:

F20

To support and withstand expected loads and forces.

F22

To limit movement under expected loads and forces.

Objective:

OP2.1, OP2.4

 

APPLICATION:

Effects of concurrent yielding of elements framing into columns or walls where earthquake actions can produce forces in columns or walls due to lateral loading along both orthogonal axes.
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.

INTENT:

To limit the probability that, where elements of the Seismic Force Resisting System are subject to forces from two loading directions, the potential for simultaneous yielding will not be taken into account, which could lead to:
  • the excessive deformation of, or excessive stress in, the structural elements, which could lead to damage to the building, or
  • the excessive deformation of, or excessive stress in, the building structure, which could lead to damage to the building, which could impede the intended use and occupancy of the building.