研究生: |
呂岳璁 Yue-cong Lyu |
---|---|
論文名稱: |
考慮複合劣化影響之橋梁耐震可靠度分析研究 Seismic Reliability Analysis for Deteriorating Reinforced Concrete Bridges |
指導教授: |
邱建國
Chien-Kuo Chiu |
口試委員: |
邱建國
Chien-Kuo Chiu 廖國偉 Liao,Guo-Wei 張惠雲 Zhang,Hui-Yun |
學位類別: |
碩士 Master |
系所名稱: |
工程學院 - 營建工程系 Department of Civil and Construction Engineering |
論文出版年: | 2013 |
畢業學年度: | 101 |
語文別: | 中文 |
論文頁數: | 141 |
中文關鍵詞: | 損傷指標 、地震序列 、震損 、鹽害劣化 、損傷超越機率 、結構性能 |
外文關鍵詞: | damage index, Seismic Sequences, seismic damage, chloride deterioration, damage exceedance probability, Structure Performance. |
相關次數: | 點閱:295 下載:9 |
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本研究為防患未然將分析研究可能對臺北盆地造成危害之遠域地震;分別為區域地震與斷層地震,區域地震選取花蓮與宜蘭;斷層地震選取新城、屯子腳與米崙斷層,利用機率模型推算未來50年與100年地震發生機率、發生次數與平均規模;區域地震採用柏松分佈(Poisson Distribution),斷層地震則採用常態對數分佈(Log-Normal Distribution)。臺北微分區中選取地震測站為臺北一區(TAP013)、臺北二區(TAP022) 與臺北三區(TAP088),並將臺灣不同類型之RC橋梁模型分別放置於臺北微分區上,分析未來50年與100年發生數次地震假設其橋梁不修復情況下之損傷程度;進行其橋梁遲滯消散能量累加與結構性能修正。分析方法(1)諧和地震歷時與(2)等值單自由度參數輸入武田模型(Takeda Model)進行非線性動力分析,由武田分析結果代入(Park and Ang,1985)公式,以獲得其RC橋梁損傷指標,並利用蒙地卡羅模擬地震序列1000次;分析未來50年與100年損傷超越機率。此外,針對宜蘭蘇澳(ILA007)之鹽害劣化因子,將三座RC橋依距海遠近(0.1公里、0.3公里、1.0公里與3.0公里)考慮劣化與震損對其橋梁耐震性能之影響,並分析未來其橋梁之損傷超越機率。
This study is doing the research about far-field earthquake which may cause harm to Taipei Basin. In order to prevent a disaster before the event, The far-field earthquake can divided into two types: Characteristic Earthquake and Regional Earthquake. The former use information in Hsincheng Fault, Tuntzuchiao Fault and Milun Fault, the latter in Hualien and Ilan. This study uses probability Model to reckon the frequency,Occurrence Probability and average size of the earthquake in fifty years and a hundred years in the future. The Regional Earthquake adopt Poisson Distribution and the Characteristic Earthquake adopt Log-Normal Distribution. The Microzonation of Taipei Basin Select TAP013,TAP022 and TAP088. The research puts different kind of RC bridge model in each Microzonation section, analyzing the frequency of earthquake,and the degree of damage under the circumstance of unrepaired the bridge by adding each Hysteresis Loop's Energy and modifying the Performance of the structure. The analyze methods are as follows:(1) Ground-Motion Time Histories Compatible and (2) Equivalent Single-degree-of-freedom By entering the parameter into the Takeda Model to do NonlinearDynamic Structural Analysis, Results are substituted into (Park and Ang, 1985) formula,to get the RC bridge damage index. This study use Monte Carlo to Simulate the Seismic Sequences for a thousand times to analyze the damage exceedance probability in fifty years and a hundredyears in the future. In addition, to the chloride deterioration in Ilan Suao(ILA007), three RC bridge models in different distance from the sea(0.1 km,0.3km,1.0km and 3km), taking deterioration and seismic damage into consideration to know the influence to the seismic performance.
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