Title:
Proof Test of a Retrofit Concept for the San Francisco Double-Deck Viaducts - Part 2: Test Details and Results
Author(s):
M. J. N. Priestley, F. Seible, and D. L. Anderson
Publication:
Structural Journal
Volume:
90
Issue:
6
Appears on pages(s):
616-631
Keywords:
beams (supports); bridges (structures); caps (supports); columns (supports); ductility; earthquake-resistant structures; joints (junctions); loads (forces); models; strength; torsion
DOI:
10.14359/9882
Date:
11/1/1993
Abstract:
In this, the second of a two-part paper, the testing of a half-scale model of a retro-fit concept for the San Fransico double-deck viaducts is discussed. The model was tested under simulated transverse, longitudinal, and diagonal response configuratiosn. Peak displacements corresponded to proto-type displacemtn ductility levels of 5.5 and 8 in. longitudinal and transverse directions, respectively, and were limited by deflections capabilities of the testing system rather than by structural performance. Performance of critical elements, including the columns, the prestressed cap-beam, and the cap-beam column joint region performed to, or above, predicted behavior. Extensive instrumentation of the model allowed detailed analysis of the response of the model, which is summarized in the paper.