4.1.8.12.(3)ATTRIBUTION:
Functional Statement:
F20
To support and withstand expected loads and forces.
Objective:
OS2.1
APPLICATION:
Ground motion histories to be used in the Numerical
Integration Linear Time History Method for earthquake design and analysis
of buildings.
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 acceleration time-histories
used in the numerical time-history method will not be spectrum-compatible
and will not take into account how site amplifications affect the response
of buildings subjected to ground motions, which could lead to structural failure,
which could lead to harm to persons.
To direct Code users to Sentence
4.1.8.4.(6) for the
determination of the design spectral response acceleration values, S(T), and
their intermediate values.
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:
Ground motion histories to be used in the Numerical
Integration Linear Time History Method for earthquake design and analysis
of buildings.
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 acceleration time-histories
used in the numerical time-history method will not be spectrum-compatible
and will not take into account how site amplifications affect the response
of buildings subjected to ground motions, 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.
To direct Code users to Sentence
4.1.8.4.(6) for the
determination of the design spectral response acceleration values, S(T), and
their intermediate values.