Hybrid Reinforced Precast Frame for Seismic Regions.
Hybrid Reinforced Precast Frame for Seismic Regions.
(1417 K)
Stanton, J.; Stone, W. C.; Cheok, G. S.
PCI Journal, Vol. 42, No. 2, 20-32, March/April 1997.
Keywords:
precast concrete; bilinear elastic; building technology;
earthquakes; frame; hybrid; post-tensioned; seismic;
unbonded prestress
Abstract:
A precast, prestressed concrete framing system for
resisting earthquake loads is described. The system
uses both unbonded post-tensioned reinforcement and
bonded bar reinforcement. Tests hve shown that its
performance is equal or superior to that of a
conventional cast-in-place moment frame. Design
criteria and code implications resulting from the test
program as well as suggested topics for future research
are discussed.
Building and Fire Research Laboratory
National Institute of Standards and Technology
Gaithersburg, MD 20899