Please use this identifier to cite or link to this item: http://hdl.handle.net/11455/10266
標題: 基礎裸露後橋墩之耐震能力與破壞機制
Influence of Riverbed Scour on Seismic Performance of Bridges
作者: 黃文秀
Huang, Wen-Hsiu
關鍵字: 土壤-結構互制;soil-pile interaction;耐震性能評估;橋樑基礎裸露;多重災害;seismic performance assessment;pile exposure;multiple hazar
出版社: 土木工程學系所
引用: [1] Melville, B. W. and Coleman, S. E. (2000). Bridge scour. Water Resources Publications, Colorado, USA [2] Melville, B. W., and Raudkivi, A. J. (1996). “Effects of Foundation Geometry on Bridge Pier Scour.” Journal of Hydraulic Engineering, ASCE, Vol.122, No.4, pp.203-209. [3] Melville, B. W. (2002). “Local Scour Depth at Bridge Foundations:New Zealand Methodology.” First International Conference on Scour of Foundations, ICSF-1, pp.120-139. [4] Ko, Y. Y., Lee, W. F., Chang, W. K., Mei, H. T., and Chen, C. H. (2010). “Scour Evaluation of Bridge Foundations Using Vibration Measurement.” Scour and Erosion, 210, pp.884-893, ASCE Publications, USA [5] 盧昭堯、林呈、王傳益 (2005),河道深槽沖淤量測及預測模擬變化潛勢評估(3/3) (以濁水溪為研究案例),經濟部水利署水利規劃試驗所。 [6] 林詠彬、張國鎮、陳俊仲、吳信宏、李路生 (2005),「光纖監測於橋梁沖刷安全之研發。」結構工程,第二十卷第一期,第111-124 頁。 [7] 陳清泉,蔡益超,李鴻源,張國鎮、謝尚賢、李有豐、單信瑜(2005),河川橋梁沖刷並補強後之安全評估,交通部公路總局。 [8] Lin, Y.B., Lai, J.S., Chang, K.C., Chang, W.Y., Lee, F.Z., and Tan, Y.C., (2010). ” Using MEMS Sensors in the Bridge Scour Monitoring System." Journal of the Chinese Institute of Engineers, 33(1), pp.25-35. [9] 交通部技術標準規範公路類公路工程部(2008),公路橋梁耐震設計規範,交通部部頒規範。 [10] 周公台、胡邵源、陳正興、張森源、鍾毓東(1998),建築技術規則建築構造編基礎構造設計規範(含解說),內政部建築研究所。 [11] 楊斯如(2003),學校建築結構耐震行為詳細評估,國立台灣大學土木工程研究所碩士論文,蔡益超教授指導。 [12] Tsai, I-Chau and Chen, Yenhao, (2006). “Seismic Capacity Evaluation of Bridge with Scoured Group Pile Foundations.” Proceedings, 4th International Conference on Earthquake Engineering, Taipei, Taiwan, No.053. [13] 林高玄(2004),基礎裸露橋梁之耐洪能力評估,國立台灣大學土木工程研究所碩士論文,蔡益超教授指導。 [14] 陳彥豪(2005),基礎裸露橋梁耐震能力評估,國立台灣大學土木工程研究所碩士論文,蔡益超教授指導。 [15] 謝居宏(2006),橋梁配置可滑動橡膠支承墊及止震塊非線性動力分析,國立台灣大學土木工 [16] 陳俊昌(2008),橋梁地震時大梁間與伸縮裝置留設適當間隙之研究,國立台灣大學土木工程研究所碩士論文,蔡益超教授指導。 [17] 蘇建鴻(2008),從沖刷與耐震觀點分析最低支出下橋梁設計基面之選定,國立台灣大學土木工程研究所碩士論文,蔡益超教授指導。 [18] 羅宇棨(2009),從沖刷與耐震觀點分析最低支出下壁式與構架式橋梁設計方法之比較,國立台灣大學土木工程研究所碩士論文,蔡益超教授指導。 [19] Priestly, M.J.N., Seible, F. and Calvi, G.M., Seismic Design and Retrofit of Bridges, Wiley-Interscience, New York, (1996). [20] Song, S.T., and Chai, Y.H., “Performance assessment of multi-column bents with extended pile-shafts under lateral earthquake loads,” The IES Journal A: Civil &Structural Engineering, 1(1), pp.39-54.(2008) [21] Song, S.T., Huang, W.H. & Tan, W.L. “Earthquake Damage Potential of Bridges Subjected to Flood and Seismic Hazards”, Proceedings, 15th World Conference on Earthquake Engineering. Lisbon, Portugal. (2012) [22] Applies Technology Council ATC-32, Improved Seismic Design Criteria for California Bridges: Provisional Recommendations,” Redwood City, California, (1996). [23] FEMA ,“NEHRP Recommended Provisions: for Seismic Regulations for New Buildings and Other Structures,” 2003 Edition, (2003) [24] 王俊曜(2011),突出地表基樁之非線性地震反應分析,碩士論文,國立中興大學土木工程研究所 [25] 葉志凱(2012),樁基礎承受側向荷重與土壤互制之模擬,碩士論文,國立中興大學土木工程研究所
摘要: 
台灣橋梁不只面對洪水所帶來的災害,更須防範洪水災害後對橋梁結構造成的影響。大部分橋梁在洪水沖刷後將產生橋墩基礎裸露的問題,而隨著基樁裸露深度增加,結構週期隨之增長、結構勁度降低,使得橋梁結構行為與初始設計不同。倘若裸露深度超過某一臨界裸露深度,則會造成基樁抵抗地震的能力不足,使得橋梁的基樁可能遭受地震破壞。
本文旨在探討基樁裸露對橋梁耐震性能的影響,並建構評估臨界裸露深度的方法。本研究將單一土壤-基礎-橋墩模擬的雙自由度系統,運用反應譜分析方法,探討基礎-橋墩系統因基樁裸露而產生的自然振動週期改變,評估地震時在橋墩不同裸露深度下的反應,以及探討基樁裸露深度對基樁側向強度折減的影響。藉由比較不同裸露深度下基樁及橋柱的強度與所受的地震力,探討估算臨界裸露深度的方法。並利用有限元素的方法,比較與數值方法之間的差異性質,以玆證明數值方法的正確性。
研究成果冀望可幫助工程實務界掌握受到洪水災害後基礎-橋墩系統的耐震性能,並針對是否須進行橋梁耐震補強工程進行評估,增進橋梁在面對地震時的安全。

In the study of the current year, the soil-pier system with foundation exposure is idealized as a two-degree-of freedom system with an equivalent stiffness and damping ratio. The seismic demand imposed on the bridge is evaluated using the response spectrum analysis method, with a consideration of soil-structure interaction. The strength of foundations with different levels of pile exposure is determined following an analytical model readily available. Through a comparison between the demand and capacity of the column and pile foundation, several critical scour depths can be determined. In the following year, seismic damage potential of bridges with foundation exposure will be investigated. The pile foundation will be assumed to be either a ductile or non-ductile component of the structure. Failure mechanisms considered will include flexure and shear damages. A set of kinematic equations suitable for damage assessment of bridge piers with pile foundations will be then developed. The proposed research is expected to bring the practices a handy approach for seismic hazard evaluation and performance assessment of bridges suffering foundation exposure due to scouring.
URI: http://hdl.handle.net/11455/10266
其他識別: U0005-2008201314260500
Appears in Collections:土木工程學系所

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