• 제목, 요약, 키워드: 플로팅 슬래브 궤도

검색결과 24건 처리시간 0.033초

플로팅 슬래브 궤도용 방진시스템 개발 (The Development of a Floating Slab Track to Isolation System)

  • 박상곤;구형욱;한현희;전종균;장승엽
    • 한국소음진동공학회:학술대회논문집
    • /
    • /
    • pp.636-641
    • /
    • 2013
  • Recently the construction of stations under railway lines and railway sections passing through central area of cities are increasing, calling for an urgent establishment of countermeasures against railway vibration and its subsequent second-phase noise. Of technology developed up to now, the most efficient countermeasure is the floating slab track, a track system isolated from the sub-structure by springs. Unfortunately, however, the system design technology and technology for key components have not yet developed in Korea. As such, in this study, the analysis and design technology of floating slab track and its vibration isolator technology can be achieved. In preparation for future demands, it is expected to raise awareness for the need of technology self-support and to make a meaningful contribution to mitigating vibration and noise produced by the next-generation high-speed railway.

  • PDF

고속철도용 플로팅 슬래브 궤도의 도입과 기본설계 (Introduction and Preliminary Design of Floating Slab Track for Rapid Transit Railway)

  • 김용재;이은호;박명균;문제우;박만호
    • 한국콘크리트학회:학술대회논문집
    • /
    • /
    • pp.141-144
    • /
    • 2008
  • 최근 철도는 운송수단으로써 그 역할이 증대되어 대량화, 고속화, 쾌적화를 지향하고 있다. 나아가 활용성의 극대화, 이용자 편의성 증대 등 다양한 목적을 위해 도심지 및 건물인접구간을 통과하는 철도 및 역사부설도 증가되고 있는 실정이다. 그러나 열차의 대량화, 고속화는 기존에 비해 증가된 소음 및 진동을 유발하며, 이러한 소음과 진동은 인접지역의 민원유발, 구조물의 사용성 저하, 소음진동관련 환경기준치 초과 등 다양한 문제를 야기할 수 있다. 따라서 철도의 소음 및 진동저감 관련기술개발은 철도건설에 있어 필수적이며, 향후 고속철도노선의 확대로 그 중요성은 더욱 증대될 것이다. 본 논문에서는 철도 및 선하역사의 소음 진동저감을 위해 플로팅 슬래브 궤도시스템(floating slab track system)을 소개하고자 하였으며, 이와 관련된 방진재의 개념도를 작성하고, 시스템의 기초해석 및 기본설계를 수행하였다.

  • PDF

플로팅 궤도 슬래브-방진장치의 펀칭전단 안정성 및 피로응력 해석 (Stability of Punching Shear and Analysis Fatigue Stress of Joint of Low Vibration Floating Slab-Anti Vibration equipment)

  • 박성재;마창남;박명균;이두화;조수익
    • 한국철도학회:학술대회논문집
    • /
    • /
    • pp.1460-1463
    • /
    • 2010
  • Railway has been pointed to the efficiency of transportation, rapid transit, and comfortable train ride. the construction of railway near the downtown area and station building are increasing for maximization of utilization and convenience. but the heavy of transportation and rapid transit lead to increase noise and vibration. The noise and vibration of railway may cause the civil appeal, decline in the serviceability and insufficiency of environmental standard. In this study, floating slab vibration and repeated connection of devices to support joints and fatigue stress analysis of punching shear performance review was conducted to evaluate the safety.

  • PDF

플로팅 슬래브궤도와 일반 콘크리트궤도 접속부에서의 열차 및 궤도의 거동 분석 (Analysis of Behavior of Train and Track at Transition Zone between Floating Slab Track and Conventional Concrete Slab Track)

  • 장승엽;양신추;박만호;조수익
    • 한국철도학회:학술대회논문집
    • /
    • /
    • pp.379-384
    • /
    • 2009
  • It is of great importance to assure the running safety and ride comfort in designing the floating slab track for the mitigation of train-induced vibration. In this paper, for this, analyzed are the system requirements for the running safety and ride comfort, and then, the behavior of train and track at the transition zone between the floating slab track and the conventional concrete slab track according to several main design variables such as spring constant, damping coefficient, spacing and arrangement of isolators and slab length, using the dynamic analysis technique considering the train-track interaction. The results of numerical analysis demonstrate that the discontinuity of the support stiffness at the transition results in a drastic increase of the vertical vibration acceleration of the train body, wheel-rail interaction force, rail bending stress and uplift force. The increase becomes higher with the decrease of the spring constant of isolators and the increase of the isolator spacing, but the damping ratio does not significantly affect the behavior of train and track at the transition. Therefore, to assure the running safety and ride comfort, simultaneously increasing the effectiveness of vibration isolation, it is effective to minimize the relative vertical offset between the floating slab and the conventional track slab by adjusting the spring constant and spacing of isolators at the transition.

  • PDF

플로팅 슬래브궤도를 적용한 선하역사 구조물 진동해석 (Vibration Analysis of Station under Railway Lines with Floating Slab Track)

  • 장승엽;조호현;양신추
    • 한국철도학회:학술대회논문집
    • /
    • /
    • pp.1719-1724
    • /
    • 2010
  • In the areas susceptible to vibration and noise induced by railway traffic such as downtown area and stations under railway lines, the vibration and the structure-borne noise can be solved by floating slab track system separating the entire track structure from its sub-structure using anti-vibration mat or springs. In other countries, the core technologies for vibration-proof design and vibration isolator - one of key components - have been developed and many installation experiences have been accumulated. However, in Korea, since the design technology of system and components are not yet developed, the foreign systems are being introduced without any adjustment. Thus, in this study, the vibration isolator has been developed and its performance are investigated by the dynamic analysis of a station structure under railways lines and the floating slab track system. For this purpose, the loads transferred from the vibration isolator of the floating slab track were evaluated by train running simulation considering vehicle-track interaction, and then the dynamic analysis of station structure subjected to these loads was performed. The dynamic analysis results show that the proposed floating slab track can reduce the vibration of structure by about 25dB compared with that in conventional ballast track without floating system.

  • PDF

플로팅 슬래브 궤도용 방진시스템 개발 (The Development of a Floating Slab Track to Isolation System)

  • 박상곤;전종균;이규섭;장승엽
    • 한국소음진동공학회논문집
    • /
    • v.23 no.2
    • /
    • pp.112-122
    • /
    • 2013
  • Recently the construction of stations under railway lines and railway sections passing through central area of cities are increasing, calling for an urgent establishment of countermeasures against railway vibration and its subsequent second-phase noise. Of technology developed up to now, the most efficient countermeasure is the floating slab track, a track system isolated from the sub-structure by springs. Unfortunately, however, the system design technology and technology for key components have not yet developed in Korea. As such, in this study, the analysis and design technology of floating slab track and its vibration isolator technology can be achieved. In preparation for future demands, it is expected to raise awareness for the need of technology self-support and to make a meaningful contribution to mitigating vibration and noise produced by the next-generation high-speed railway.

플로팅 슬래브 궤도용 방진시스템 현장성능 평가 (Field performance evaluation of a Floating Slab Track to Isolation System)

  • 박상곤;구형욱;한현희;전종균;장승엽
    • 한국소음진동공학회:학술대회논문집
    • /
    • /
    • pp.352-357
    • /
    • 2014
  • Recently the construction of stations under railway lines and railway sections passing through central area of cities are increasing, calling for an urgent establishment of countermeasures against railway vibration and its subsequent second-phase noise. Of technology developed up to now, the most efficient countermeasure is the floating slab track, a track system isolated from the sub-structure by springs. Developed in this study, anti-vibration device for floating slab track (HLRM-High Load Rubber Mount) Haman station affiliated to the primary measurement was conducted in October 2012, one year after the second measurement after 2013 to be carried out in November and we want to change that. It is expected to raise awareness for the need of technology self-support and to make a meaningful contribution to mitigating vibration and noise produced by the next-generation high-speed railway.

  • PDF

플로팅 슬래브궤도용 방진재의 성능에 관한 연구 (The study for performance of isolators supported floating slab track)

  • 김진호;차효정
    • 한국철도학회:학술대회논문집
    • /
    • /
    • pp.569-574
    • /
    • 2007
  • The paper presents an application of the model to a practical problem of train-induced vibrations. The aim of this study is to vertify for performance of isolators which was developed in KRRI supported floating slab track. Laboratory tests on developed isolations show that the energy dissipation, under cyclic loading of constant amplitude, can be suitably represented by a combination of a viscous and a hysteretic damping. Also, other tests for structural performance are carried out, such as elastic material test, compression test and so on. The specimen, $400{\times}400{\times}300mm$, is placed between two stiff steel plates designed to uniformly distribute the compression stress on the surface.

  • PDF

플로팅 슬래브 궤도의 최대길이 (Maximum Slab Length of Floating Slab Track)

  • ;장승엽;정원석
    • 한국철도학회:학술대회논문집
    • /
    • /
    • pp.173-180
    • /
    • 2011
  • Recently, many railway stations are built under the railway line in urban area. The passage of railway vehicles generates mechanical vibrations of a wide range of frequency. Thus, it is required to place structural vibration isolation systems to reduce vibration and noise originating from surrounding environments. This study is to investigate the maximum floating slab length based on track/floating slab interaction analyses. Actions to be taken into account include temperature, braking/acceleration, bending of the deck, and creep/shrinkage. The additional rail stress has been chosen for the criterion for the maximum slab length. In addition, further analyses are performed to include the stopper which restrict the in-plane movement of the floating slab track. Several alternatives for stopper positions were thoroughly studied in this study.

  • PDF