지상 라이다를 이용한 구조물의 안전성 및 사용성 모니터링을 위한 변위 및 변형 형상 계측 모델의 검증 = A Verification of Displacement and Deformed Shape Measurement Model for Safety and Serviceability Monitoring of Structures using Terrestrial LiDAR

다국어 초록 (Multilingual Abstract)

In a previous paper, displacement and deformed shape measurement model is proposed for structural monitoring using terrestrial LiDAR. In this paper, the proposed model is applied to displacement measurement of simply supported steel beams subjected to a point load. The performance of the proposed model is investigate by comparing the displacement obtained from the model and displacements directly measured from various measuring devices such as electrical strain gages, fiber optic senors and LVDTs. For the assessment of stresses in a beam, stresses induced in the beam are calculated using the displacement measured from proposed model and the stresses also are compared with those from the electrical strain gages and fiber optic sensors.

참고문헌 (Reference)

1 정현석, "철골보의 안전성 평가를 위한 평균변형률의 활용 기법 개발" 22 (22): 79-82, 2002

2 백재민, "장대광센서를 이용한 보-기둥 부재의 부재력 계측 기법 개발" 15 (15): 82-87, 2004

3 Fraser C. S., "Monitoring the thermal deformation of steel beams via vision metrology" 55 : 268-276, 2000

4 Tamura Y., "Measurement of Wind-induced response of buildings using RTK-GPS" 90 : 1783-1793, 2002

5 Olaszek P., "Investigation of the dynamic characteristic of bridge structures using a computer vision method" 25 : 227-236, 1999

6 박효선, "GPS를 이용한 고층건물의 수평변위 모니터링시스템" 대한건축학회 21 (21): 11-18, 2005

7 박효선, "GPS를 이용한 고층 건물의 풍응답 모니터링" 대한건축학회 21 (21): 11-19, 2005

8 Celebi M., "GPS in dynamic monitoring of long-period structures" 20 : 477-483, 2000

9 Anton, H., "Elementary Linear Algebra" John Wiley & Sons 2000

10 Ackemann, F., "Airborne laser scanning-present status and future expectation" 54 : 64-67, 1999

11 Wahbeh A. M., "A vision-based approach for the direct measurement of displacements in vibrating systems" 12 : 785-794, 2003