한국철도학회:학술대회논문집 (Proceedings of the KSR Conference)
- 한국철도학회 2010년도 춘계학술대회 논문집
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- Pages.1279-1286
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- 2010
I형 거더교의 동력분산형 하중에 대한 동적해석
Dynamic Analysis of I-Type Girder Bridge with HEMU Train Load
초록
This paper deals with the influence on the dynamic response of I-type girder railway bridge with high-speed electric multiple unit(HEMU) train load. This bridge system which has six I-girder and several cross beams, is modeled with plate and frame elements. And the upper slab is assumed to be fully connected with girders using rigid rinks. Span lengths, types of vehicle and running speeds are selected as parameters for analyses. For more exact analysis, it was adopted that 3-dimensional section of bridge models was produced by the assumed design wheel loads of HEMU vehicle at 200~350 km/hr speeds. Dynamic vertical deflections, dynamic amplification factors and vertical accelerations of bridges having 30 and 35 m span length were investigated and compared with the limit values specified in various national railway bridge specifications.
키워드