Field testing of bridge design and retrofit concepts. part -1 of 2: field testing and dynamic analysis of a four-span s-eismically isolated viaduct in Walnut Creek, California / b-y Amir S. Gilani...[et al.] 

 - Berkeley, Calif. : g Research Center 
 - [261] p. 
 - Report ; no.UCB/EERC 95-14 .