The ATC-31 report, Evaluation of the Performance of Seismically Retrofitted Buildings, was developed under a contract from the National Institute of Standards and Technology (NIST, formerly NBS) and funded by the U. S. Geological Survey (USGS). (Published 1992, 75 pages)
ABSTRACT: This report summarizes the results from an investigation of the effectiveness of 229 seismically retrofitted buildings, primarily unreinforced masonry and concrete tilt-up buildings. All buildings were located in the areas affected by the 1987 Whittier Narrows, California, and 1989 Loma Prieta, California, earthquakes.
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