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    GPS를 이용한 장대교량의 거동 모니터링 연구 = A Study on the Motion Monitoring of Long Span Bridge using GPS

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    https://www.riss.kr/link?id=T11478203

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    다국어 초록 (Multilingual Abstract) kakao i 다국어 번역

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    한국어
    The aims of this study are check the possibility to apply GPS to the motion monitoring of bridge by comparing data acquired form RTK-GPS and laser displacement meter. Hence, The results are below.
    The first, the study area is cable-stayed girder bridge section of Seohae Grand Bridge and the vertical displacement and proper frequency are acquired using RTK-GPS. And the program is developed that is possible to load NMEA format of GPS data and the data acquired form laser displacement meter, to display the loaded data, to compare and analyze the data visually and to run FFT.
    The second, As a result of the motion observation of bridge, there are errors, -0.0067m and -0.0070m each by observation frequency, but if the error of observation equipment is considered, it should be successful result. Also, the result of FFT is successful. So, it is confirmed the possibility to apply GPS to the motion monitoring of bridge.
    The third, There are different data, 10Hz and 20Hz by observation frequency to confirm effect of GPS observation frequency. it is show that there is no effect by 10Hz to the result. but more high-quality observation frequency is needed as purpose of analysis. also, there is a close connection between observation frequency and economical efficiency of GPS observation equipment. so additional study must be necessary.
    The fourth, When observation precision of GPS equipment is considered, there is limit to check motion monitoring of small structure that has little motion by external force. And, it is possible to check the 3-D motion monitoring of twisted motion bridge though study regarding equipment application and acquisition data processing method.
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    The aims of this study are check the possibility to apply GPS to the motion monitoring of bridge by comparing data acquired form RTK-GPS and laser displacement meter. Hence, The results are below. The first, the study area is cable-stayed girder bridg...

    The aims of this study are check the possibility to apply GPS to the motion monitoring of bridge by comparing data acquired form RTK-GPS and laser displacement meter. Hence, The results are below.
    The first, the study area is cable-stayed girder bridge section of Seohae Grand Bridge and the vertical displacement and proper frequency are acquired using RTK-GPS. And the program is developed that is possible to load NMEA format of GPS data and the data acquired form laser displacement meter, to display the loaded data, to compare and analyze the data visually and to run FFT.
    The second, As a result of the motion observation of bridge, there are errors, -0.0067m and -0.0070m each by observation frequency, but if the error of observation equipment is considered, it should be successful result. Also, the result of FFT is successful. So, it is confirmed the possibility to apply GPS to the motion monitoring of bridge.
    The third, There are different data, 10Hz and 20Hz by observation frequency to confirm effect of GPS observation frequency. it is show that there is no effect by 10Hz to the result. but more high-quality observation frequency is needed as purpose of analysis. also, there is a close connection between observation frequency and economical efficiency of GPS observation equipment. so additional study must be necessary.
    The fourth, When observation precision of GPS equipment is considered, there is limit to check motion monitoring of small structure that has little motion by external force. And, it is possible to check the 3-D motion monitoring of twisted motion bridge though study regarding equipment application and acquisition data processing method.

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    목차 (Table of Contents)

    • 표차례 = ⅲ
    • 그림차례 = ⅳ
    • Abstract = ⅵ
    • 제1장 서론 = 1
    • 1.1 연구배경 및 목적 = 1
    • 표차례 = ⅲ
    • 그림차례 = ⅳ
    • Abstract = ⅵ
    • 제1장 서론 = 1
    • 1.1 연구배경 및 목적 = 1
    • 1.2 연구연혁 = 3
    • 1.3 연구내용 및 범위 = 4
    • 제2장 GPS(Global Positioning System) = 6
    • 2.1 개요 = 6
    • 2.2 GPS의 구성 = 7
    • 2.2.1 우주부문(Space segment) = 7
    • 2.2.2 제어부문(Control Segment) = 9
    • 2.2.3 사용자 부문 = 11
    • 2.3 GPS 위성의 신호 = 12
    • 2.4 GPS 위치결정의 방법 = 14
    • 2.4.1 코드측정방식에 의한 위치결정 원리 = 14
    • 2.4.2 반송파 측정방식에 의한 위치결정 원리 = 16
    • 2.5 GPS의 위치 결정 체계 = 19
    • 2.6 GPS 자료취득 방법 = 20
    • 2.6.1 단독측위 = 20
    • 2.6.2 상대측위 = 20
    • 제3장 NMEA 자료구조 = 25
    • 제4장 적용 및 고찰 = 31
    • 4.1 적용대상 교량 및 주요현황 = 31
    • 4.2. 관측장비 제원 = 34
    • 4.3 장비설치 및 자료취득 = 36
    • 4.4 취득자료 처리 및 분석 = 38
    • 제5장 결론 = 44
    • 참고문헌 = 46
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