The Earthquake Engineering Online Archive

Experimental and analytical evaluation of a retrofit double-deck viaduct structure

Zayati, Foued; Mahin, Stephen A.; Moehle, Jack P.

UCB/EERC-96/03, Earthquake Engineering Research Center, University of California, Berkeley, 1996-06, 334 pages (520.6/Z29/1996)

A one-third scale model of a retrofit bent (Bent B-8) from the Alemany Freeway (I280-101 interchange) was built and tested at the structures laboratory at the University of California at Berkeley. The experimental studies, which comprised cyclic tests on the original retrofit structure, the repaired structure, and the upper column of the test specimen, were required to address the uncertainties inherent in the design and examine the repairability of the retrofit structure following a major earthquake. Analytical studies were also conducted to address two main issues influencing ductility demands on the structure: (a) the effect of bidirectional seismic input, and (b) the effect of soft story response.

Available online: http://nisee.berkeley.edu/documents/EERC/EERC-96-03.pdf (66 MB)