Back4.1.8.11.(6)

ATTRIBUTION:

Functional Statement:

F20

To support and withstand expected loads and forces.

Objective:

OS2.1

 

APPLICATION:

Formula or method for distributing the total lateral seismic force, V, determined in Sentence 4.1.8.11.(2), into forces applied at each storey along the height of the building, for the design of buildings for earthquake.
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 the calculation of loads due to earthquake will not take into account the expected distribution of the base shear into seismic forces acting at each storey, including higher forces induced at the top of tall buildings, which could lead to structural failure, 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:

Formula or method for distributing the total lateral seismic force, V, determined in Sentence 4.1.8.11.(2), into forces applied at each storey along the height of the building, for the design of buildings for earthquake.
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 the calculation of loads due to earthquake will not take into account the expected distribution of the base shear into seismic forces acting at each storey, including higher forces induced at the top of tall buildings, 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.