International Journal of Highway Engineering (한국도로학회논문집)

Korean Society of Road Engineers (한국도로학회)
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Comparison Study on Nondestructive Strength Equation Based on Probability for Bridges

확률론적 방법을 적용한 도로교량의 비파괴 압축강도식 평가

  • Kim, Hun-Kyom (Road Facility division, Seoul Metropolitan Government)
  • 김훈겸 (서울특별시청 도로시설과)
  • Received : 2018.03.23
  • Accepted : 2018.06.04
  • Published : 2018.06.15
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Abstract

PURPOSES: This study is to estimate nondestructive strength equation based on probability for bridges using field test data. METHODS : In this study, a series of the field inspection and the test have been performed on 297 existing bridges, in order to evaluate the bridges, based on the test results of the in-depth inspection, and the estimated strengths by means of the nondestructive strength equations are analyzed and compared with results of the core specimen strengths. RESULTS : According to results of analyses, In case of standard design compressive strength of concrete is 18MPa, 21MPa, similar reliability of RILEM equation were 0.89~0.90, but in case of standard design compressive strength of concrete is 35MPa, 40MPa were 0.4~0.56. According to standard design compressive strength of concrete is 40MPa, similar reliability of ultrasonic pulse velocity method equation were 0.56. CONCLUSIONS :RILEM equation had high similar reliability than other equation in case of standard design compressive strength of concrete is 18MPa, 21MPa, but had low similar reliability than other equation in case of standard design compressive strength of concrete is 35MPa, 40MPa. and ultrasonic pulse velocity method equation had low similar reliability than other equation in case of standard design compressive strength of concrete is 40MPa.

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References

  1. Jo, H. N. (2008). Structure reliability of engineering, goomi book (in korea).
  2. Kim, G. H. (2007). "The reliability for the estimated strength by the ultrasonic pulse velocity", Hanyang University, Seoul, pp.31-43.
  3. Kim, H. K., and Kim, S. B. (2010). "Service Life Prediction and Carbonation of Bridge Structures According to the Environmental Conditions", Journal of KSMI, 14(4), pp.126-32.
  4. Kim, M. W., Oh, H. S., and Oh, K. C. (2016). "Estimating the Compressive Strength of High-Strength Concrete Using Surface Rebound Value and Ultrasonic Velocity", Journal of KSMI, 20(2), pp.1-9.
  5. KISTEC (2011). Guideline of Precise Inspection for Safety and Diagnosis, Common, pp.12-56.
  6. Kwon, Y.-W., Park S.-C., and Kim M.-S. (2006). "Strength Prediction Equations for High Strength Concrete by Schmidt Hammer Test", Journal of the Korea Concrete Institute, 18(3), pp.389-395. https://doi.org/10.4334/JKCI.2006.18.3.389
  7. Lim, S. Y. (2007). "A Study on the Estimation of Compressive Strength of Concrete by Non-Destructive Test", Daegu University, Daegu, pp.1-2.
  8. Oh, H. S., and Oh, K. C. (2016). "An Empirical Estimation Procedure of Concrete Compressive Strength Based on the In- Situ Nondestructive Tests Result of the Existing Bridges", Journal of KSMI, 20(4), pp.111-119.
  9. Park, J. w., Choo, J. H., Park, G. R., Hwang, I. B., Shin, Y. S. (2015) "The Evaluation of Non-Destructive Formulas on Compressive Strength Using the Reliability Based on Probability", Journal of KSMI, 19(4), pp.25-34
  10. RILEM CNDT-Committee (1980). RILEM Tentative Recommendations for In-situ Concrete Strength Determination by Non-Destructive Combined Methods (First draft).