期刊名称：WAAC Newsletter / Western Association for Art Conservation
电子版ISSN：1052-0066
出版年度：2007
卷号：29
期号：3
出版社：Western Association for Art Conservation (WAAC)
摘要：In 1983 the Getty Museum in Los Angeles, California began efforts to reduce the damaging effects of earthquakes to its collections by: Characterizing the overall geology and seismic history of the museu m site and describing a worst-case seismic event that might occur within a reasonable time frame and at a reasonable risk level, Determining the overall response of the museum building to such an event, Determining how the contents of the building (collections, display furniture, and fixtures) would respond to the earthquake motions and forces, and Developing seismic mitigation approaches to protect the collections. The four basic methods wh ich were developed to mitigate damage will be discussed in the latter part of th is article. They are: Lowering the object's or object assembly's center of gravity by adding weight to the lower parts of the display assembly, Lowering the center of gravity by adjusting the proportions of the display assembly (adjusting the b ase to height ratio for more stability), Restraining objects by firmly securing them to the floor, pedestals, shelv es, wall, and/or supporting mounts. This app roach requires that the o bject have sufficiently high inherent strength and rigidity (or have them enhanced by a supporting mount) to withstand the earthquake forces, and Allowing sliding of the display furniture by the use of base isolation mechanisms.
