Title:
Performance of Concrete Bridge Columns Under Shaketable Excitation
Author(s):
Patrick N. Laplace, David H. Sanders, M. Saiid Saiidi, Bruce M. Douglas, and Saad El-Azazy
Publication:
Structural Journal
Volume:
102
Issue:
3
Appears on pages(s):
438-444
Keywords:
column; reinforced concrete; tests
DOI:
10.14359/14415
Date:
5/1/2005
Abstract:
Three 1/3-scale circular flexure-dominated reinforced concrete bridge columns constructed using old and new Caltrans seismic details were tested on the University of Nevada, Reno seismic shaketable system. One as-built (pre-1970s design) and two new detailed columns (late 1990s design) were subjected to various acceleration amplitudes of the 1940 Imperial Valley Earthquake (El Centro) until failure. The new detailed columns showed improved performance compared with the as-built column. Simple time-history analytical models can predict the performance of the columns adequately, although lap-splice degradation is not well predicted.