보강된 접속부를 갖는 일체식 철도교량의 해석적 평가
Analytical Evaluation of Integral Railroad Bridge with Reinforced Transition
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초록
이 연구의 목적은 시멘트 및 토목섬유로 보강된 접속부를 갖는 일체식 철도교량의 온도변형량 등을평가하여 타당성을 확인하는데 있다. 교량과 접속부 불연속구간에서 침하가 최소화되는 새로운 일체화 철도 교량시스템의 해석적 평가를 수행하였다. 해석에서 매개변수는 교대 배면의 뒷채움 강성및 바닥 경계조건을 다루었다. 궤도-교량 상호작용 해석 등의 타당성 평가 결과 보강된 접속부를갖는 일체식 철도교량의 구조적 합리성 등을 확인하였다.
Abstract
The purpose of this study is to evaluate the temperature deformation and others of integral railroad bridge with cement and geosynthetic reinforced transition. This paper performs the analytical evaluation of new railway integral bridge systems to decrease settlement at discontinuous zone between bridge and reinforced transition. Among the numerous parameters, this analytical study concentrates on the backfill stiffness and boundary conditions of foundation. As a feasibility evaluation with track-bridge interaction analysis results, the proposed integral railroad bridges with reinforced transition were identified in terms of structural rationality and so forth.
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