온도변화에 따른 사장교 케이블 고유진동수 분석
Analysis of the Frequency for Cable of Cable-Stayed Bridges to Temperature Variation
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초록
최근 국내외 사용빈도가 높고 향후 건설계획이 많은 사장교의 주부재인 케이블을 대상으로 하였다. 우선 케이블의 온도 변화와 대기온도 변화 등으로 영구적으로 사용되는 온도하중에 대해 보통지방의 온도변화를 고려하여 실험을 수행하였다. 케이블의 온도변화를 가하여 동적특성의 변화를 여러 가지 시스템을 적용하여 케이블의 동적특성을 비교 분석하였다. 케이블의 동적특성을 비교분석한 결과 온도상승에 따른 케이블의 가속도, 고유진동수 및 장력은 감소하는 경향이 뚜렷하였으며 케이블의 변위의 영향정도를 분석하였으며 케이블의 모드특성에 대한 결과를 분석하였다. 특히 케이블의 온도변화에 따른 케이블의 가속도, 고유진동수 및 장력에 대해 상관관계를 분석한 결과 가속도 및 고유진동수 대비 케이블 장력의 민감도가 큰 것으로 나타났다.
Abstract
Cable was targeted for cable, which is a main material of cable-stayed bridges that have high frequency of use at home and abroad and many future construction plans. First of all, experiments were conducted on temperature loads that were permanently used due to changes in temperature of cables and changes in air temperature, taking into account changes in normal fat. The dynamic characteristics of cables were compared and analyzed by applying various systems to change dynamic characteristics by applying temperature change of cables. Comparing and analyzing the dynamic characteristics of cables, the acceleration, frequency and tension of cables due to temperature rise tended to decrease, the degree of influence of displacement of cables was analyzed, and the results of the mode characteristics of cables were analyzed. In particular, the correlation of cable acceleration, natural frequency, and tension due to changes in cable temperature showed that the cable tension is highly sensitive to acceleration and natural frequency
참고문헌 (14)
- Branco, F. A., "Thermal Actions for Concrete Bridge Design", Journalof Structural Engineering, 119(8), pp.2313~2331 (1993), ASCE
- Emanuel, J. H., "Temperature Distributions in Composi Bridges", Journal of Structural Division, 104(1), pp.78~ (1978), ASCE
- Hwang, E. S., "Thermal Effects of a Cable-Stayed Bridge", lABSEREPORTS 2001, 84, pp.116~117 (2001)
- Jenny, L., "Automatic Modal Analysis: Reality or Myths", ~ (2007)
- Kim, S. H., "Study for Temperatual Behavior of Curved Steel Box Girder Bridge with Solar Irradiance", Proceedings of the Annual Conference, Civil and Environmental Engineering Research, pp.611~616 (2003)
- Kim, S. H., "Study for Temperatual Behavior of Curved Steel Box Girder Bridge’s Temperatural Distribution Forecast Method", Proceedings of the Annual Conference, Korean Society of Steel Construction, pp.460~467 (2004)
- Lee, M. G., "Analysis of Temperatural Distribution Prestress Concrete Box Girder Bridge", KSCE Journal of Civil and Environmental Engineering Research, 19(5), pp.745~759 (1999)
- 이현철, "Measurement Equipment Development of Stability Evaluation for Joint Slope using Unmaned Aerial Vehicle", 터널과 지하공간, 28(3), pp.193~208 (2018), 한국암반공학회[DOI]
- Lim, C. G., "Design Temperature Load of temperatural Effect for Composite Box Grider Bridge", Doctoral, pp.1999
- Lim, C. G., "Experimental Review for Shape Variation of Temperature in Steel Suspension Brdige", Korean Society of Steel Construction, pp.108~113 (2000)
- Moon, J. H., "Study for Temperatural Effect Steel Girder of Suspension Bridge", Master’s, pp.1999
- 박해원, "자기센서에 의한 강재 케이블 장력측정에서 온도특성에 대한 연구", 한국구조물진단유지관리공학회 논문집, 13(2), pp.181~188 (2009), 한국구조물진단유지관리공학회
- Zhang, H. L., "Thermal Effect of Cable-Stayed Bridge Tower", Ilan Universy Journal of Natural Sciences, 8(4), pp.1121~1125 (2003)