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by S. Hilmy, S. Werner, A. Nisar and J. Beck
March 2000, 117 pp.
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Introduction
Of all modern concrete buildings that were subjected to strong shaking during the Northridge
earthquake, parking structures appear to have suffered the greatest degree of damage. During the
earthquake, eight parking structures at heavily used shopping malls, hospitals, and colleges either
partly or completely collapsed. Four were built between 1986 and 1992, and the others were built
between 1965 and 1982. Damaged or severely cracked columns, beams, and shear walls caused
building inspectors to close at least 24 other parking structures in the San Fernando Valley, and
in Glendale, Santa Monica and West Los Angeles. Many of the damaged parking structures will
take months and millions of dollars to repair.
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