RTK-GPS를 이용한 상시바람하중을 받는 5층 철골골조 시스템식별
System Identification of a 5 Story Steel Frame Under Ambient Wind Loads Using RTK-GPS
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참고문헌
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초록
이 연구에서는 RTK-GPS 장비를 사용하여 상시바람하중 및 가진 진동 실험시 계측된 변위 응답을 이용하여 실물크기 5층 철골 프레임에 대한 시스템식별 실험을 수행하였으며, 그 결과를 가속도 응답을 사용하여 얻은 결과와 비교하였다. RTK-GPS는 10Hz의비교적 낮은 샘플링 속도를 가지고 있어 현장상황을 고려하여 적절한 측정안정도를 확보하는 것이 중요하였다. 변위자료를 사용하여식별된 모드특성은 가속도 자료를 사용하여 얻은 것과 동일하였으며, 가속도계를 사용하여 측정할 수 없는 변위응답의 평균성분을 관측할 수 있었다.
Abstract
In this study, the system identification of a real-scale 5 story steel frame structure was conducted by using the displacement response measured by RTK-GPS under ambient wind loads and forced vibration tests and the results were compared with those obtained by using the acceleration responses. The RTK-GPS has comparatively lower sampling rate of 10 Hz than the accelerometers, and it was important to secure measurement stability by considering the site situation. The modal characteristics identified by using the displacement data were identical to those by the acceleration data, and the mean component of the displacement response which can not be measured by the accelerometers could be observed.
참고문헌 (15)
- CELEBI, M, "GPS in dynamic monitoring of long-period structures", Soil Dynamics and Earthquake Engineering, 20(5), pp.477~483 (2000)
- 최병길, "멀티 GPS 센서를 이용한 장대교량의 형상관리시스템 개발에 관한 연구", 한국측량학회지, 27(3), pp.385~392 (2009), 한국측량학회
- Jang, S.G, "Displacement Analysis of Dam Deformation Monitoring with GPS", Journal of the Korean Society of Surveying, Geodesy, Photogrammetry and Cartography, 19, pp.237~244 (2001)
- 박효선, "GPS를 이용한 고층 건물의 풍응답 모니터링", 대한건축학회논문집 구조계, 21(4), pp.11~19 (2005), 대한건축학회
- A case study of the technology of measurement system using Global Positioning System(GPS) for highrise buildings, "Kang, S.J", Korea Institute of Construction Engineering and Management, ~ (2006)
- No, T.H, "Development on Management System of Structure's Displacement Using GPS", Journal of the Korean Society for Geospatial Information Science, 11(2), pp.53~59 (2003)
- B, Hofmann-Wellenhof, "GNSS–global navigation satellite systems: GPS, GLONASS, Galileo, and more" (2007), Springer Science & Business Media
- J, Bogusz, "GNSS-based multisensor system for structural monitoring applications", Journal of Applied Geodesy, 6(1), pp.55~64 (2012)
- J, Tobita, "Development of microtremor measurement and analysis system for onsite evalutaion of dynamic properties of buildings and ground", AIJ Journal of Technology and Design, 15(29), pp.61~64 (2009)
- Y.TAMURA, "Ambient vibration tests and modal ideckntification of structures by FDD and 2DOF-RD technique", Proceedings of Structural Engineers World Congress (2002)
- ASMUSSEN, J.C, "Random decrement:identification of structures subjected to ambient excitation", The International Modal Analysis Conference (1997)
- Heo, S.J, "Basic performance verification of RTK-GPS for the monitoring of the structure", Conference of the Wind Engineering Institute of Korea, 19 (2016)
- 최세운, "자유 진동 실험을 통한 VRS-RTK 기법을 이용한 골조 구조물의 모니터링 적용성 검토", 한국구조물진단유지관리공학회 논문집, 18(1), pp.174~182 (2014), 한국구조물진단유지관리공학회[DOI]
- Y, Xia, "Deformation monitoring of a super-tall structure using real-time strain data", Engineering Structures, 67 (2014)
- 김문겸, "입력정보가 배제된 구조물 동특성 응답해석기법을 적용한 실험적 모우드해석에 관한 연구", 대한토목학회 논문집A, 22(4-A), pp.925~937 (2002), 대한토목학회