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Description / Abstract:
This Standard defines requirements for a certain type of hybrid
special moment frame composed of precast concrete beams jointed at
their connections to columns that are continuous past those joints.
Whereas these frames do not satisfy all of the prescriptive
requirements of 21.5 through 21.7 of ACI 318-11, analyses, tests,
and reporting requirements in accordance with ACI 374.1 have
established dependable and predictable strength, energy
dissipation, stiffness, and drift capacities for characteristic
beam-column configurations of the frames described in this
Standard. Such special moment frames are permitted for structures
assigned to SDC D, E, or F in accordance with 21.8.4 of ACI
318-11.
The intended user of this Standard is a licensed design
professional experienced in earthquake-resistant design and precast
concrete design and construction.