BEHAVIOR OF EXTERIOR
RCS CONNECTIONS
SUBJECTED TO SEISMIC LOADING
(Sponsored by NSF)
BEHAVIOR OF EXTERIOR
RCS CONNECTIONS
SUBJECTED TO SEISMIC LOADING
(Sponsored by NSF)
Gustavo Parra-Montesinos
James K. Wight
This research project
investigated the seismic response of exterior frame connections in
composite (steel-concrete) structures. The connections consist of a
reinforced concrete (RC) column and a steel (S) beam that is continuous
within the joint.
The experimental program consisted of the seismic testing and repair of exterior
RC column-to-steel beam connections subjected to seismic loading in the
University of Michigan Structural Engineering Laboratory. Post-test
analytical studies were used to simulate the measured RCS connection
behavior during both its original and repaired states. The degree of
stiffness and strength retention, and amount of energy dissipation
capacity at various interstory drift levels, were compared between
all specimens with special emphasis on the comparison of the results
for the same connection in its "original" and "repaired" conditions.
Analytical models were developed to predict the strength vs. shear distortion
response of RCS connections, as well as the ultimate shear strength of RCS joints
subjected to large load reversals.
(Last updated: Aug 07, 2000)