The Assessment Method and Application of Indirect Detection

Abstract:

In indirect detecting, the measure value and the measured value are not the same or there is not a determined relationship between them, the measure physical value has to be surmised according to the measured value from statistics principals. Based on traditional and failure detecting method, the assessment methods of two different test conditions are deduced by the whole presumption method, theoretical formula of the confidence intervals, the method of probability and statistics. Moreover, the standard of qualification or unqualification is presented. The examples of engineering have shown that concrete strength is judged qualification with high probability. This method is used not only in test of building structure, especially in the evaluation of earthquake, but also popularizes to other domains, strength detecting for bridges, the pressure vessel, aircraft wing etc.

• Periodical: Applied Mechanics and Materials (Volumes 166-169)
• Pages: 1437-1440
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.166-169.1437
• Online since: May 2012
• Authors: Hai Bin Chen, Li Wang, Su Xin Gao, Xiao Jun Tong
• Keywords: Assessment Method, Concrete Strength, Confidence Interval (CI), Indirect Detection

References

[1] Haibin Chen, Xiaojun Tong, Qun Ma et al. Interval Assessment Method of Ultrasonic-Rebound Nondestructive Testing of Building Structure Strength [J].China Railway Science, 2006, 27(1): pp.43-47, (In Chinese).

[2] Xinxuan Wu. Non-destructive Test of the Concrete [M]. Beijing: China Communications Press, 2003.

[3] Haibin Chen, Nan GE,Xiaojun Tong. Research on the Confidence Interval of Indirect Detection [J].Advanced Materials Research Vols. 446-449: p.32399～3242, (In Chinese).