| 英文摘要 |
Many suspended ceilings have been damaged in past earthquakes owing to a lack of proper installation. In 2011, an appendix to the Taiwanese building seismic design code was issued to provide guidance for the seismic installation of suspended ceilings. However, it has been found that ceiling systems implemented according to installation guidelines still collapsed when subjected to near-fault earthquakes with large vertical seismic forces. In addition, practical implementation of the design details has always been a difficult problem, leading to uneven qualities of installed suspended ceilings. In order to determine the effects and efficiency of the current standard, a series of full-scale shaking table tests of large-area suspended ceilings was conducted in this study. An attempt is made to identify the vertical strength capacity of ceilings and the parameters that influence their capacity based on the test results and the failure mechanisms observed. The experimental results are analyzed and discussed in this paper and a draft revision of the seismic installation guidelines is presented. |
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