4.1.8.9.(3)ATTRIBUTION:
Functional Statement:
F20
To support and withstand expected loads and forces.
Objective:
OS2.1
APPLICATION:
Product of RdRo to be used for
combinations of different types of Seismic Force Resisting Systems, applicable
to the building structure, to be used in calculating the base lateral earthquake force, V, in Sentence
4.1.8.11.(2), and the
base lateral earthquake force (dynamic analysis), Vd, in Sentence
4.1.8.12.(5).
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 earthquake design will
not reflect that the response of the Seismic Force Resisting System should
be governed by its most vulnerable part, 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:
Product of RdRo to be used for
combinations of different types of Seismic Force Resisting Systems, applicable
to the building structure, to be used in calculating the base lateral earthquake force, V, in Sentence
4.1.8.11.(2), and the
base lateral earthquake force (dynamic analysis), Vd, in Sentence
4.1.8.12.(5).
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 earthquake design will
not reflect that the response of the Seismic Force Resisting System should
be governed by its most vulnerable part, 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.