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강상자형교의 강바닥판에서 설계온도하중을 위한 유효온도 산정

Evaluation of Effective Temperature for Estimate Design Thermal Loads in Steel Deck of Steel Box Girder Bridges

  • 신동욱 (부산대학교 사회환경시스템공학부) ;
  • 김경남 (충북대학교 건설기술연구소) ;
  • 최철호 (부산대학교 사회환경시스템공학부) ;
  • 이성행 (부산대학교 사회환경시스템공학부)
  • 투고 : 2013.07.15
  • 심사 : 2013.09.03
  • 발행 : 2013.11.30

초록

국내 교량 설계에서 온도 하중에 대한 현재 LSD (한계 상태 설계법)는 다양한 교량 형식에 대한 동일한 기준을 적용하고 있다. 본 연구에서는 유효 온도를 산정하기 위해 실제 크기의 상판이 없는 강상자형거더교 시험체를 제작하였다. 1년동안 강상자형거더교모형의 18개 지점에서 온도데이터를 측정하였다. 측정된 데이터를 바탕으로 대기 온도에 따른 교량단면내 유효 온도를 산정 하였다. 유로 코드의 유효 온도와 비교할 때 실측 유효온도의 결과는 매우 유사한 상관 관계를 보였다. 따라서, 본 데이터를 기반으로 산정 된 유효 온도는 국내 교량 설계에 온도 하중에 적합한 설계 기준을 제시하기 위한 기초 자료로 사용할 수 있다.

A present LSD (limited state design) code for temperature load in the domestic bridge design has applied a uniform standard for various bridge types. In this study, in order to calculate the effective temperature, a specimen of steel box girder bridge section with real size dimension was manufactured. For a year, the temperature data were measured at the 18 point in steel deck of steel box girder bridges specimen. Effective temperature within the cross section according to atmospheric temperature was calculated by this experiment data. The analyzed results were very similar correlation when compared with the effective temperature of the Euro Code. Therefore, the effective temperature which calculated based on the present data could be used as the basic data in order to present to the appropriate design criteria for the thermal loads on the domestic bridge design.

키워드

참고문헌

  1. AASHTO, AASHTO LRFD Bridge Design Specficati ons (SI Units, 4th Edition), 2007, pp.3-99, pp.3-104.
  2. AASHTO, Standard Specifications for Highway Bridges, 17th Ed., HB-17. American Association of State Highway and transportation Officials, Washington, DC, 2002.
  3. British Standards Institution, Steel, Concrete and Composite Bridges, Part 2. Specification for loads, BS5400: Part 2: 1978, 2004, pp.20-23.
  4. European Coal & Steel Community, "Eurocode No 3 : Design of Steel Structure Part 2 : Steel Bridges", CEN, 1999.
  5. John E., Freund Mathematical Statistics: Physical and application / Irwin Miller, Marylees Miller.
  6. Korean Society of Civil Engineers, Bridge Design Core Technology Research Center, Highway Bridge Design Criteria Commentary, 2008 (in Korean).
  7. The Ministry of Land, Highway Bridge Design Criteria, 2010 (in Korean).
  8. The Ministry of Land, Highway Bridge Design Criteria, 2012 (in Korean) (Limit state design method).
  9. Yoo, C. S., Jung, K. S., Estimation of Area Average Rainfall Amount and Its Error, Journal of Korea Water Resources Association, KCI 1738-9488, Vol. 34, No. 4, 2001. 8, pp.317-326 (in Korean).

피인용 문헌

  1. Study of the Temperature Difference between the Top and Bottom Web of Steel Box Girder without Concrete Slab by using Gauge Measurement vol.15, pp.12, 2014, https://doi.org/10.5762/KAIS.2014.15.12.7350
  2. An Experimental Study on the Temperature Difference between the Top and Bottom Flange in Steel Girder without Concrete Slab vol.18, pp.4, 2014, https://doi.org/10.11112/jksmi.2014.18.4.099
  3. Estimation of the Maximum Design Effective Temperature for Steel Box Girder Bridges Considering Asphalt Thickness of Concrete Deck vol.30, pp.5, 2018, https://doi.org/10.7781/kjoss.2018.30.5.299
  4. Estimation of Minimum Design Effective Temperature for Steel Box Girder Bridges Considering Asphalt Thickness of Concrete Deck vol.31, pp.1, 2019, https://doi.org/10.7781/kjoss.2019.31.1.023
  5. 강상자형교의 설계온도하중을 위한 최고 유효온도 산정 vol.17, pp.8, 2016, https://doi.org/10.5762/kais.2016.17.8.133