ANALYSIS OF TEMPERATURE EFFECT ON HEALTH MONITORING DATA OF TIBETAN ANCIENT BUILDING

摘要

Serious damages exist in lots of Tibetan ancient buildings,which greatly threaten the structural safety.In order to protect the Tibetan ancient building,30 fiber Bragg grating strain sensors and 30 fiber Bragg grating temperature sensors were installed in a typical Tibetan ancient building respectively to measure the deformation and the temperature variation of the structure,which got one year strain variation data and temperature variation data.The correlation coefficients between temperature variation and strain variation were calculated respectively for different time durations,e.g.one day,one month and one year.The changing rules of the correlation coefficient for different time duration were analyzed.The results indicate that the correlation between the temperature variation and the strain variation was different according to different length of time and the temperature is an important factor that influences the strain variation.