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도시형자기부상열차 주행하중에 의한 단경간 PSC-Box 거더교의 동적 거동
양태석(Yang Tae-Sock),정원용(Chung Won-yong),이기열(Lee Gi-Yeol) 한국철도학회 2008 한국철도학회 학술발표대회논문집 Vol.- No.-
Magnetic Levitated(Maglev) Vehicle, which utilizes electromagnetic forces between dual-pole electromagnets and a steel rail, generally runs on guideway structures. A prototype of an Urban Maglev Vehicle has been developed and tested in Korea, This study was conducted as a cooperation research subject of the 3-1 subject, performance improvement of maglev track structures, of the Center for Urban Maglev Program, statred in 2006. As the Maglev load is distributed rather than concentrated, a field test was conducted on Simple Span PSC-BOX Girder Bridge(L=25.0m) of the Expo-Maglev test track in Daejeon to examine the dynamic effect of the Maglev load on the bridge. Numerical analyses were also performed up to the maximum passing speed of 110 ㎞/h by 10 ㎞/h increments of Maglev Vehicle using Finite Element model of bridge, and girder deflections, accelerations and Dynamic Amplification Factor (DAF) are analysed.
도시형 자기부상철도 토목구조물 유지관리 지침 작성을 위한 국내 철도교 유지관리 현황 분석
이기열(Lee Gi-Yeol),양태석(Yang Tae-Sock),정원용(Chung Won-Yong) 한국철도학회 2008 한국철도학회 학술발표대회논문집 Vol.- No.-
This paper presented a literature review and investigation analysis results of total 19 present guide book and provisions of maintenance and management system in existing railway bridges to development of urban maglev track structures inspection manual. This research carried out a cooperated research subject 3-1, development a design code and maintenance and management inspection manual for urban maglev track structures, of the Center for Urban Maglev Program. Three types of track structures were includes as a major analytical parameter together with railroad, high speed railroad, subway and light rail transit. Bridges were analyzed a general rules, investigation, evaluation, repair and strengthen method as a key aspect. And rail were analyzed examination and maintenance also. This analysis results show that the track structures evaluation are based on the test and examination results, and repaired or strengthened consideration of deterioration, track irregularity and materials according to provision requirements.