| Summary: | 碩士 === 中原大學 === 建築研究所 === 94 === Research on Investigation Process of Historical Wood-Structural Buildings and their Surroundings Attacked by Termites in Taiwan
July-2006
By Hao-Yao Chang
Thesis Adviser : Associate Professor : Chyn Shiue & Ming-Jer Tsai
Abstract
Currently in Taiwan, over sixty percents of the historical buildings are wood-framed. Therefore, the biological hazard brought by termites can be the biggest threat to these buildings. For an attack prevention of termites, we must understand thoroughly about the techniques for termite detection at first. In this thesis, I have discussed the method and the process of termite detection from several related researches systematically, and then suggested a set of procedures for termite detection. The procedures can be helpful by spotting the areas of termite activity which is an important basis for future prevention and solution to this problem. Thus, the life of these historical buildings can be further extended, and the architectural features and cultural values of our unique society can be passed down to the next generations.
In the first chapter, there are three key points：
（1） The generalization of basic knowledge and lifestyle of termites in Taiwan.
（2） The generalization of existing techniques for termite detection.
（3） The suggestion for the procedure of termite detection.
More further discuss of these three points will present in chapter 2, 3 and 4.
In the second chapter, I have introduced the ecological environment and the habitual behavior of termites in general.
I have then focused on four kinds of termites, Coptotermes formosanus, Reticulitermes flaviceps Oshima, Odontotermes formosanus shiraki and drywood termites, which are the main causes of the damage to historical buildings in Taiwan.
This can be an important basis for future investigation of termite detection at the scene.
In the third chapter, I have collected related literature, interviewed some experienced people in the field of pest control and prevention, and joined investigations at the scene to form a basis for further discussion.
In the forth chapter, I have used nine techniques mentioned above as the basis, discussed their mutual relationship, and then suggested a set of procedures for termite detection. At last, four cases are used for evaluation of the effect.
In the fifth chapter, I have made a conclusion：
（1） While making termite detection, we can spot the areas of termite activity by their lifestyle and marks left by them.
（2） While using techniques for termite detection, we must pay attention on time, place, and order. The best situation is to detect termites without destroying historical buildings and without frightening away termites.
（3） The procedures of termite detection can be separated in three steps, including initial investigation, instrument investigation, and final investigation. The procedures are clearly presented in Picture 5-1.
Keywords：historical building, wood-framed, termite, termite hazard, termite detection
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