Quantitative analysis of termites damage is important in terms of conservation and maintenance of wooden cultural heritage buildings, because termites makes cavities and decreases the section area of wooden structural members. The purpose of this study is to forecast the range and spread of termites damage in the wooden structural members by using ultrasonic pulse velocity method.
Ultrasonic pulse velocity has been used as one of non-destructive test to analysis the internal defect by using difference velocity between medium material and cavity. This method would be effective to analysis termites damages. From the result of the ultrasonic velocity test, the loss rate of area effected by termites damage had a strong correlation with ultrasonic velocity. And it is possible to predict the loss rate of area from by termites damage by using regression equation in the case of structural member of fine tree.

Abstract
 1. 서 론
 2-1. 목재의 흰개미에 의한 충해와 단면 결손
 2-2. 초음파 전파속도를 이용한 생물열화의 분석
 2. 목재 생물학적 열화 분석의 이론적 고찰
 3. 초음파 전파속도법에 의한 목재 충해 현황의 분석
  3-1. 실험개요
  3-2 초음파 전파속도법을 이용한 충해현황의 현장 측정
 4. 초음파 전파속도법에 의한 목재 단면 결손의 정량 분석
  4-1. 실험개요
  3-2. 단면 결손율과 초음파 전파속도의 상관관계
 5. 결 론
 References

• 안재철(동아대학교 건축학과 조교수) | Ahn Jae-Cheol Corresponding Author