以非破壞性檢測法檢測大樓壁磚分離率

Using Nondestructive Test to Inspect the Building Wall Tiles Separation Rate

陳柏穎(Po-Ying Chen) ； 李德河(Der-Her Lee) ； 吳建宏(Jian-Hong Wu) ； 許家豪(Chia-Hao Hsu) ； 賴新龍(Hsin-Lung Lai)

《中國土木水利工程學刊》 26卷1期 (2014/03) Pp. 23-36

https://doi.org/10.6652/JoCICHE.201403_26(1).0003

摘要

為了建立能快速掌握大樓外牆具有分離現象的壁磚位置與分離率的檢測方法，以縮短檢測時間及降低壁磚修復成本。本研究以非破壞性的檢測方法進行室內、外試驗，最終建立一套以壁磚的紅外線熱影像檢測圖徵，快速判定大樓底層與高層外牆壁磚分離率大於50%以上位置的方法。方法為先以室內、外試驗建構超音波速－主控頻率關係圖，並據此訂定壁磚分離率50%的室外超音波速值。再以室外檢測結果訂定超音波速－高低溫差的線性關係，利用分離率50%壁磚的室外超音波速值決定50%壁磚的高低溫差界限值，以此高低溫差界限值，即可快速檢測大樓壁磚分離狀況。

關鍵字

壁磚分離率 ； 非破壞性檢測法 ； 紅外線熱影像檢測圖徵

並列摘要

In order to shorten the detecting time and reduce wall tiles repair costs, a detect method should be established that can quickly to find out the location of the separated wall tiles and know its separation rate. Nondestructive tests are carried on indoor and outdoor tests. A detect method is established by using thermal infrared images to find out tile location of separation rate larger than 50%. Firstly, plot the sonic velocity vs frequency diagram to decide the tile sonic velocity value of separation rate equal 50%. Subsequently, use the linearly equation between sonic velocity and temperature difference to decide the temperature difference threshold of tiles separation rate equal 50%. Finally, the threshold can be used to quickly detect tiles separation conditions in a building.

並列關鍵字

wall tiles separation rate ； nondestructive test ； infrared thermographic