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October 2007 - February 2016
Publications
Publications (14)
In Hungarian design practice, the Zimmermann-Eisenmann quasi-static design method is employed to dimension track structures with embedded rails. This method determines the mean values of deformations and stresses using an infinitely long elastically embedded beam as the static frame. After establishing these mean values, the effects of track condit...
Where railway tracks pass through tunnels, the temperature conditions on the railway superstructure are different from those on the connecting track sections. Due to the temperature difference at the tunnel, dilatation movements occur even in cases of construction of continuously welded rail (CWR) tracks. The aim of this research is to determine th...
This paper deals with the time-frequency characteristic analysis for track geometry irregularities using field data recorded by a comprehensive track inspection train. The parameters of the track gauge and the left and right rail alignment are considered to identify their characteristic wave-lengths and the locations of their waveforms. In addition...
Traffic volumes have been simultaniously increasing in both individual and public transportation,
which cause troublesome traffic jams in our cities. Separated track is provided for trackbased
transportation systems, so they don’t have conflict with road traffic, but the buses and
trolley-buses depend on the traffic circumstances. Covert tramway tr...
A közlekedési módválasztás során az egyik legfontosabb szempont az utazással töltött idő, mely a közösségi közlekedés esetében az előnyben részesítéssel és az átszállási idő lerövidítésével, annak minőségének javításával csökkenthető. Néhány éve kezdtek el megjelenni Magyarországon a közösségi közlekedési sávok, melyek előnyei rövid távon érezhetők...
A MÁV D. 12/H. Utasítása alapján járatos síndilatációs szerkezetek az alábbiak:
– Csilléry-féle síndilatációs szerkezet;
– csökkentett szorítóhatású leerősítésekkel szerelt Csilléry-féle szerkezet, amely mindkét irányban lehetővé teszi a csatlakozó sínszálak elmozdulását;
– beágyazott síndilatációs készülék;
– nagynyitású, VM rendszerű síndilatáció...
The superstructure of railway track is set out to significant internal forces so there are separate technological regulations that refer to the determination of technological parameters of certain structural elements and to their minimal values. This study shows the possibility that performing measurements that are different from the standard dispo...
The technical specifications of D.12/H of Hungarian State Railways specifies that a continuously welded rail track can be constructed through a bridge without being interrupted if the expansion length of the bridge is no longer than 40 m. If the expansion length is greater than 40 m, rail expansion joints have to be constructed.
The aim of the rese...
A vasúti vágányok hidakon való átvezetésére vonatkozó hazai előírásokat tartalmazó MÁV Zrt. D. 12/H. Utasítás alapján a zúzottkő ágyazatú és a hídfás kialakítású hidakon a hézagnélküli felépítményt 40 m dilatáló hossz felett (általában) meg kell szakítani, síndilatációs szerkezet beépítésével. Ezen felül a sínleerősítések műszaki paramétereire, a f...
The Technical Specifications of D.12/H. of Hungarian StateRailways specifies that a continuously welded rail track can be constructed through a bridge without being inter-rupted if the expansion length of the bridge is not longer than 40 m. If the expansion length of a bridge is greater than 40 m, the continuously welded rail should normally be int...
The Hungarian State Railways (MÁV Rt.) plans to reconstruct the tracks with short rails and rail joints in its trunk line network by continuously welded rails, that is possible by applying, among other technical solutions, the Y-shape steel sleepers. The first track with Y-shape steel sleepers was constructed in Hungary in November 2003, in the Sza...
This paper deals with the determination of the stress propagation in the HH10 type of steel railroad ties under dynamic loads. The HH10 type of steel ties were tested for fatigue at the University of Illinois at Urbana-Champaign. Simultaneously with the laboratory fatigue tests, I was modelling the stress distribution in the tie due to the dynamic...
