梁損傷之影響線偵測法

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姓名

曾乙庭(Yi-Ting Zeng) 查詢紙本館藏

畢業系所

土木工程學系

論文名稱

梁損傷之影響線偵測法
(Damage Detection of Beam by the Influence Line Method)

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摘要(中)

結構損傷評估為橋梁系統維修和管理的一項重要任務，本論文發展一種影響線偵測技術，首先量測梁結構跨徑上一點之位移影響線，透過沿梁空間上變數有關的位移影響線作二次微分，可清楚識別裂縫損傷的位置及嚴重性，由解析解及數值模擬證明此損傷評估技術在不同預力型態之梁上是有效且準確的，應用卡氏第二定理計算不同預力條件及損傷之梁位移影響線。因為量測之雜訊，實驗數據的損傷識別能力並不能完全呈現解析解及數值模擬的結果，但是將來如果可以降低量測雜訊的影響，由影響線反應的這種掃描型態損傷評估技術可提供一種改善檢查效率的方法。

摘要(英)

Damage assessment of structure is an important task for the maintenance and management of bridge system. An influence line type inspection technique is developed in this thesis. The displacement influence line at a point in the span of a beam structure is measured first. Through the second derivative of this displacement influence line with respect to the spatial variable along the beam, both the locations and the severities of crack damage can be clearly identified. The feasibility and accuracy of this damage assessment technique are verified both theoretically and numerically of beams with various prestress states. The second Castigliano’s theorem is applied to calculate the displacement influence line of beams with various prestress conditions and damages. Due to the measurement noise, the capability of damage identification from experimental data is not as impressive as it shown in the numerical and theoretical investigations. However, this scanning type damage assessment technique by the influence line response provides a possible manner to improve the inspection efficiency if the effect from measurement noise can be reduced in the future.

關鍵字(中)

★ 影響線
★ 損傷指標
★ 梁
★ 曲率變化

關鍵字(英)

★ influence line
★ damage detection
★ beam
★ curvature variation

論文目次

摘要 I
ABSTRACT II
誌謝 III
目錄 IV
表目錄 VI
圖目錄 VII
第一章緒論 1
1.1 引言 1
1.2 研究動機 2
1.3 論文大綱 3
第二章文獻回顧 4
第三章理論公式推導 8
3.1 功能互易定理 8
3.2 損傷梁中點變位推導 12
3.2.1 單損傷梁 12
3.2.2 雙損傷梁 19
3.3 預力損傷梁中點變位推導 29
3.3.1 單損傷預力梁(直線鋼腱) 30
3.3.2 單損傷預力梁(折線鋼腱) 38
3.3.3 單損傷預力梁(拋物線鋼腱) 46
3.4 損傷指標推導 54
第四章數值模擬與實驗 56
4.1 解析解計算 56
4.1.1 簡支梁損傷計算 56
4.1.2 預力簡支梁損傷計算 65
4.1.3 損傷指標計算 72
4.1.4 損傷敏感度 77
4.2 數值模擬計算 86
4.2.1 數值模擬計算結果 87
4.2.2 損傷指標計算 101
4.3 實驗室實驗 108
4.3.1 實驗試體及設備 108
4.3.2 實驗結果計算 110
第五章結論與建議 125
參考文獻 127

參考文獻

1.Stubbs, N. and Osegueda, R., “Global damage detection in solids-experimental verification,” Modal Analysis: The international journal of analytical and experimental modal analysis, Vol. 5, No.2, pp.81-97 (1990).
2.Doebling, S. W. and Farrar, C. R., “Effect of measurement statistics on the detection of damage in the Alamosa Canyon Bridge, “Proceeings 15th International Modal Analysis Conference, Orlando, FL, pp. 919-929(1997).
3.Pandey, A. K., Biswas M. and Samman M. M., “Damage detection from changes in curvature mode shapes,” Journal of sound and vibration, Vol. 145, NO.2, pp.321-332(1991).
4.Wahab Abdel, Biswas, M., “Damage detection in bridges using modal curvatures: Application to a real damage scenario,” Journal of sound and vibration, Vol. 226, NO.2, pp.217-235(1999).
5.Pandey, A. K., Biswas, M., “Damage detection in structures using change in flexibility,” Journal of sound and vibration, Vol. 169, NO.1, pp.3-17(1994).
6.Pandey, A. K., Biswas, M., “Experimental verification of flexibility difference method for location damage in structures,” Journal of sound and vibration, Vol. 184, NO.2, pp.311-328(1995).
7.Lu, Q., Ren, G. and Zhao, Y., “Multiple damage location with flexibility curvature and relative frequency change for beam structures,” Journal of sound and vibration, Vol. 253, NO.5, pp.1101-1114(2002).
8.Catbas, F. N., Gul, M. and Burkett, J. L., “Damage assessment using flexibility and flexibility-based curvature for structural health monitoring,” Smart Materials and Structures, Vol.17, pp.12(2008).
9.Sain, Trisha, Chandra Kishen, J. M., “Damage and residual life assessment of structures using fracture mechanics,” Proceeding of the 16th ASCE Engineering Mechanics Conference, July, pp 16-18(2003).
10.Choi, Il-Yoon, Lee, S. Jun, Choi, Eunsoo, Cho, Hyo-Nam, “Development of elastic damage load theorem for damage detection in a statically determinate beam,” Computers and Structures, Vol.82, pp.2483-2492(2004).
11.Chen, Xiao-Zhen, Zhu, Hong-Ping, Chen, Chuan-Yao, “Structural damage identification using test static data based on grey system theory,” Chen et al/J Zhejiang Univ SCI, Vol.6A, No.8, pp.790-796(2005).
12.Lee, Eun-Taik, and Eun, Hee-Chang, “Damage detection of damaged beam by constrained displacement curvature,” Journal of Mechanical Science and Technology, Vol.22, pp.1111-1120(2008).
13.Stimac,I. and Kozar, I., “Damage detection from displacement-in-time function, ” Extended summaries of the 4th Youth Symposium on Experimental Solid Mechanics. Castrocaro Terme, Italy, 04-07.05.2005, 3-4.
14.Kim, C. W. and Kawatani, M., “Pseudo-static approach for damage identification of bridges based on coupling vibration with a moving vehicle,” Structure and Infrastructure Engineering, Vol.4, No.5, pp.371-379(2008).
15.陳宏南，「希爾伯特頻譜於橋梁非破壞檢測之應用」,國立中央大學土木工程研究所碩士論文，中壢，2001.
16.蘇文喜，「模態參數於梁結構損傷檢測之應用」,國立中央大學土木工程研究所碩士論文，中壢，2003.
17.洪紹勳，「梁構件之振動式快速損傷診斷技術」,國立中央大學土木工程研究所碩士論文，中壢，2008.
18.黃進國「梁構件損傷偵測」,國立中央大學土木工程研究所博士論文，中壢，2009.

指導教授

王仲宇(Chung-Yue Wang)

審核日期

2009-7-27

推文