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    题名: 地震危害度分析-以朝鮮半島為例
    作者: 洪臣麟;Hung, Chen-Lin
    贡献者: 土木工程學系
    关键词: 朝鮮半島;風險管理;地震危害度分析;PSHA;Korean Peninsula :;Risk Management;PSHA
    日期: 2018-08-23
    上传时间: 2018-08-31 11:29:06 (UTC+8)
    出版者: 國立中央大學
    摘要: 朝鮮半島位於歐亞大陸板塊,東南方為太平洋海板塊。因為位置離板塊交界處較遠,所以地震規模通常較小,一般房屋缺少耐震設計,就南韓而言全國只有7%的建築物有耐震設計,但近期地震頻繁,朝鮮半島的民眾已經無法忽略地震所帶來的危害。
    地震危害度為模擬某一特定地震發生時對各地的影響情況,或是不同回歸期下的各地災害,通過PSHA方法(Probability Seismic Hazard Analysis)去模擬得到地震危害度。以475年回歸期而言,危害度地圖中的加速度代表50年中有10%被超越的地表加速度,因此有了這些資料便可以對該地可能發生的最大震度有了認識。危害度地圖也可以應用在設計規範上,如設計規範圍採用475年的回歸期,而475年回歸期當地為0.2g的加速度,代表此處的建築物耐震設計至少要可以抵抗0.2g的加速度,但不同的結構物設計時需要參考不同的回歸期,同地點回歸期越高則加速度應會越高,也就是會更保守,以台灣高鐵來說,其耐震規範為設計年限100年內的10%超越機率,也就是950年回歸期的設計。本研究完成了朝鮮半島的地震危害度分析。
    ;Korean Peninsula locates at Eurasia Plate, near the Pacific Plate which is located at it southwest. Korea is far away from the seismic belt, so the earthquake occurred there which magnitude was often small. So in South Korea, only seven percent of their houses has the seismic design. But, recently, earthquake hit the Korea, let the people started to concern this problem.
    Probability Seismic Hazard Analysis is to simulate when specific earthquake occurred, its influences to each place, or the acceleration under different return period. We use PSHA to evaluate the earthquake hazard demand. For 475 years return period hazard map, the acceleration on the map represents that every 50 years at that location has 10% chance been exceeded. The result can be applied on many different areas. We can use this result on seismic design of building. For seismic design of building, it often use the 475 years period. And if the acceleration of 475 years period is 0.2g that represents buildings in that location need to resist 0.2g acceleration. For some important structure, like nuclear power plant or high-speed rail, higher years of return period should be considered. In the same location, higher return period has higher acceleration. It means the design is more conservative. For insurance company, combined with fragility, they can use the analysis to determine insurance premium and so .On this research, we adopt PSHA to do the Seismic Analysis of Korean Peninsula.
    显示于类别:[土木工程研究所] 博碩士論文

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