Cracking exploration of concrete structures by using fiber

Cracking exploration of concrete structures by using fiber optic sensors 12100813 Civil engineering Kuk Nyun Kim

Index Chapter 1. Introduction Chapter 2. What is Optical fiber? INDEX Chapter 3. Apply the draft Chapter 4. Plan Chapter 5. Contribution

3/12 Chapter 1. Introduction

4/12 Chapter 1. Introduction

5/12 Chapter 1. Introduction v Background • Not well maintenance and repair of roads • In modern society also had a collapse of the road v Purpose • Quickly and easily checked the status of the road. v How? • Add a sense of stability by using Optical fiber

6/12 Chapter 2. What is Optical fiber? Central portion– high refractive index glass Outer portion – lower refractive index glass

7/12 Chapter 2. What is Optical fiber? Small size Light weight High temperature performance High sensitivity

8/12 Chapter 3. Apply the draft Measurement Sensor

10/12 Chapter 3. Apply the draft Measuring Results Trend of fiber optic sensors (전규식, “콘크리트 구조물의 균열진행 측정용 간이센서 개발 ”, Proceedings of the Korea Concrete Institute, Vol. 11, No. 2, 1999. 11, pp 635~638)

11/12 Chapter 4. Plan v January to May • Apply to Lab (similar field situation) v May to June • Select the bridge v June to August • Gain the result by optical fiber v August to ~ • Analysis and Expand the other bridge

12/12 Chapter 5. Contribution Stability Accuracy Marketable

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