| 研究生: |
連韋慶 Lien, Wei-Ching |
|---|---|
| 論文名稱: |
非破壞檢測技術於建築物缺陷檢測之應用研究 Applying Non-Destructive Testing to Inspecting the Building Defects |
| 指導教授: |
李德河
Lee, Der-Her |
| 學位類別: |
碩士 Master |
| 系所名稱: |
工學院 - 土木工程學系 Department of Civil Engineering |
| 論文出版年: | 2008 |
| 畢業學年度: | 96 |
| 語文別: | 中文 |
| 論文頁數: | 169 |
| 中文關鍵詞: | 紅外線熱影像 、外飾面磚空鼓範圍 、非破壞檢測 、缺陷 |
| 外文關鍵詞: | defects, non-destructive testing, infrared(IR) thermography, the exterior of the brick hollowing |
| 相關次數: | 點閱:181 下載:18 |
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台灣地狹人稠,為容納大量的人民居住及活動,因此都會區內樓房密布,建築物常彼鄰而建,然台灣地處亞熱帶,其為溫度及濕度均高之環境,加上建築物之施工品質、使用材料及地震災害等因素影響下,均易造成建築物其建材劣化,出現表面龜裂、界面剝離甚至外飾面磚脫落等缺陷,進而對建築物之耐久性及外觀造成影響,甚至危及公共安全。然而若要將出現缺陷的建物敲除重建,除須付出一定的成本外,對於鄰近建物的安全性亦會造成影響,故如何獲得建築物缺陷的分佈及破壞的程度,以利後續進行修復便成為工程師一重要的課題。因此本研究擬針對建築物之表面裂縫、內部裂縫、外飾面磚空鼓等現象以非破壞檢測技術檢測之,比較透地雷達、紅外線熱影像儀及超音波檢測儀三種檢測方式對於檢測不同缺陷的適用性及可行性。
本研究之研究成果如下:
1. 利用透地雷達對表面細微裂縫進行探測時,可得知裂縫位置,由紅外線熱影像儀及超音波檢測儀檢測結果,可以本研究所得之關係式來預測裂縫深度。
2. 以透地雷達進行建築物外部缺陷探測時,以高頻率之天線可探測得外飾面磚空鼓及磚牆破壞範圍,利用紅外線熱影像儀檢測時,可運用影像處理技術獲得外飾面磚空鼓及磚牆破壞範圍,但須注意檢測環境之日曬條件,而超音波檢測儀則因待測物之表面粗糙度而影響其可行性。
3. 本研究將紅外線熱影像技術應用於成功大學博物館北向立面進行大面積之檢測,並將紅外線熱影像檢測結果與敲擊法結果相互比對,其外飾面磚空鼓範圍結果相近。
Taiwan is crowded, for the large capacity of living and activities buildings are built densely in the metropolitan area. Taiwan is located at subtropical area, with high temperature and humidity. Under the construction quality, using of materials and earthquake disaster and so on, lots of factors will cause some defects such as the deterioration of buildings and cracks in the surface even make the exterior brick falling, and then making the influences of durability and the appearance of the buildings even endangered the public safety. However, if we want to knockout and rebuilding, we should pay for some fixed costs but cause the safety of neighbor buildings. One of the most important for engineer is how to acquire the destruction degree and the distribution of the defects for the building to beneficial the follow-up rehabilitation. This study is aimed to the phenomena of external cracks, internal cracks, and exterior brick hollowed via the non-destructive testing. Comparing the ground penetrating radar, infrared(IR) thermography and ultrasonic detector to testing the applicability and feasibility of differ defects tests.
The results are as follows,
1. When using the ground penetrating radar to testing the tiny cracks of the surface, can test the place of the cracks; The formula of this study could predict the depth of cracks when using the IR- thermography and ultrasonic test.
2. Using the ground penetrating radar to carry out the tests of the external defects of the buildings, we can test the range of the exterior brick hollowed and the destructive brick wall; when using the IR thermography technology, we can manipulate the skill of image processing technologies to get the range of exterior brick hollowed and the destructive brick wall, but we have to take the notice of the insolation condition of the environment. Due to the surface roughness of defects that impacts the feasibility of the ultrasonic test.
3. The result of this study indicates the range of the exterior brick hollowing will be very closer by comparing the tests between the IR thermography technology and the percussion test which using the IR thermography technology to the National Cheng Kung University Museum of the North elevation to the area of detection.
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