在現行耐震法規的修訂後，結構物耐震能力提升，地震發生時破壞情況降少，但非結構物的破壞卻時常出現，尤其以輕鋼架天花板最為常見。
政府於2011年7月內政部最新版建築物耐震設規範中，將耐震型輕鋼架天花板工法納入附錄B，公告施行，以降低震損情況。但此一工法因斜拉線施工受到現場環境限制，往往不能依照規範中的規定施作，導致耐震能力不足。
本研究提出採用等剛度的概念，擬定一替代方案，解決施工現場因環境限制無法施作之問題。替代方案降低了原系統使用空間的50%，有效解決原系統所面臨之問題，並由元件試驗，及全尺寸實驗結果得知，替代方案之剛度與原系統剛度差異在10%以內，符合原始提案時之期望。

After the amendment to the earthquake resisting building code in 1999, the seismic capacity of structures is enhanced, and the risk of structure damage is therefore reduced. Nevertheless, damage to nonstructural components still occurs frequently, especially to suspended ceiling systems.

In the latest Seismic Design of Structures Regulations from Ministry of the Interior in July 2011, the government added the method of seismic resistant suspended ceiling systems to appendix B for reducing seismic damage of suspended ceiling. However, being subjected to site construction limitations, it’s difficult to conduct bracing construction installation in accordance with the regulations, which results in the reduced seismic capacity.

This study adopts the concept of equivalent stiffness for an alternative to solve the problem of bracing construction restricted by environment restriction. The alternative method reduces the used space by 50 percent to efficiently solve the original problem. Through the component tests and full-scale experiments, it’s observed that there is only a 10 percent stiffness difference between original system and alternative method, which is in line with the expectations.

Keywords: nonstructural components, seismic resistant suspended ceiling systems, bracing, alternatives

1.Lawrence Livermore Laboratory（1980）,The LLNL Earthquake Impact Analysis Committee Report on the Livermore, California, Earthquakes of January 24 and 26,1980.UCRL-52956, USA.
2.Benuska, Lee. （1990） Loma Prieta earthquake reconnaissance report.Earthquake Spectra, Supplement to Vol.6, pp.339-377.
3.Taniguchi-Ruth-Smith Associates （1993）. Guam Memorial Hospital Earthquake Damage Report, Cloria J.Long的私人通訊。
4.內政部建築研究所（1998），嘉義瑞里地震建築災害調查報告書，台北。
5.許茂雄等（1999），一九九九集集大地震災害調查研討會論文集，國科會工程科技推廣中心。
6.內政部營建署（2011），建築物耐震設計規範及解說，
7.鍾育霖（2001），展示館功能性設施耐震性能評估，國立成功大學建築研究所碩士論文
8.廖仕田（2010），展示館功能性設施耐震性能評估，國立成功大學建築研究所碩士論文
9.ASTM E580（2006） Standard Practice for Application of Ceiling Suspension Systems For Acoustical Tile and Lay-in Panels in Areas Requiring Seismic Restraint. ASTM Int^'l, USA
10.ASTM C635 （2007）. Standard Specification for the Manufacture, Performance,and Testing of Metal Suspension Systems for Acoustical Tile and Lay-in Panel Ceilings. ASTM Int^'l, USA.
11.倪伯聰（1998），懸吊式輕鋼架天花板之破壞試驗與分析，國立成功大學建築研究所碩士論文。
12.蘇天傑（2001），懸吊式天花板系統之地震反應數值，國立台灣大學土木工程學研究所碩士論文。