Field Test on the Rigidities of Substructures of High Speed Railway Bridges

고속철도교량 하부구조 강성도에 관한 현장실험

  • 진원종 (한국건설기술연구원 구조연구부) ;
  • 최은석 (한국건설기술연구원 구조연구부) ;
  • 곽종원 (한국건설기술연구원 구조연구부) ;
  • 강재윤 (한국건설기술연구원 구조연구부) ;
  • 조정래 (한국건설기술연구원 구조연구부) ;
  • 김병석 (한국건설기술연구원 구조연구부)
  • Published : 2006.02.01

Abstract

SThe rigidities of bridge substructures are the important data in the rail-bridge interaction analysis in Korean High -Speed Railway. This experimental study is being performed because of followings. 1) More correct longitudinal stiffness of the structure including substructure should be considered in the calculation of stresses in rails. 2) There are many uncertainties in the design and construction of the piers and foundations. 3) Actual guideline for the rigidities of piers and foundations in the design is necessary. 4) Measurement on the rigidity of pier according to the types of piers, foundations and soil-conditions is needed. Curve for estimating the total rigidity of substructure will be obtained through this and further experimental studies. It may be used in the analysis of Korean High-Speed Railway bridge and then, longitudinal stresses in the rails can be estimated more accurately. One pair of piers, which consist of pot-bearing for fixed support and pad-bearing for movable support, are loaded by steel frame devices with steel wire ropes and hydraulic jack. The responses which are measured at each loading stages in those field tests are displacements and tilted angles on the top and bottom of piers. This study is being performed testing and analysis about several piers in the construction field.

Keywords

References

  1. G. Meyer and P. Ruse (1987), 'Design System used by the German Federal Railway for Valley Bridges on the New Railway Lines', Ingenieurbauwerke, IBW Talbrucken, Nr.4, pp.49-81
  2. 진원종외 (2002), '경부고속철도 교량하부구조 강성도에 관한 실험적 연구', 2002년도 대한토목학회 학술발표회논문집, pp.289-292
  3. 한국건설기술연구원 (2002), 고속전철 구조물 안전성 기술 개발(교량부문) 최종보고서, pp.45-76
  4. W.Chin, E.Choi, and J.Kwark (2003), 'Experimental Study on the Rigidities of Bridge Substructures in KHSR', IABSE Reports Vol.87, IABSE Symposium, pp.160-161
  5. UIC (1995), UIC CODE 774-3, General Principles of Calculating Longitudinal Forces in a Bridge, its Bearings and its Structure - Recommendations for a simple case. 1st Edition