"Analysis of Railway Track Stiffness for Dynamic Loading"@en . "[B7B59CBAE61F]" . "Anal\u00FDza tuhosti kolejov\u00E9 j\u00EDzdn\u00ED dr\u00E1hy p\u0159i dynamick\u00E9m zat\u00ED\u017Een\u00ED"@cs . "Smutn\u00FD, Jaroslav" . . . "Anal\u00FDza tuhosti kolejov\u00E9 j\u00EDzdn\u00ED dr\u00E1hy p\u0159i dynamick\u00E9m zat\u00ED\u017Een\u00ED" . . "8"^^ . . "Svoboda, Richard" . "Analysis of Railway Track Stiffness for Dynamic Loading"@en . "409894" . "4"^^ . . . "4"^^ . . "Experiment 07. Sborn\u00EDk" . "2007-10-25+02:00"^^ . . "permanent way, track stiffness"@en . . . "978-80-7204-543-3" . "Anal\u00FDza tuhosti kolejov\u00E9 j\u00EDzdn\u00ED dr\u00E1hy p\u0159i dynamick\u00E9m zat\u00ED\u017Een\u00ED" . "RIV/00216305:26110/07:PU70743!RIV08-MSM-26110___" . . . . "Vysok\u00E9 u\u010Den\u00ED technick\u00E9 v Brn\u011B. Fakulta stavebn\u00ED" . "Brno" . "Pl\u00E1\u0161ek, Otto" . "RIV/00216305:26110/07:PU70743" . "26110" . "Hruz\u00EDkov\u00E1, Miroslava" . "\u010Cl\u00E1nek je v\u011Bnovan\u00FD anal\u00FDze kvality pra\u017Ecov\u00E9ho podlo\u017E\u00ED p\u0159i dynamick\u00E9m zat\u00ED\u017Een\u00ED pomoc\u00ED m\u011B\u0159en\u00ED svisl\u00E9ho zatla\u010Den\u00ED pra\u017Ec\u016F v kolejov\u00E9m lo\u017Ei. V sou\u010Dasn\u00E9 dob\u011B bylo pozorov\u00E1no mno\u017Estv\u00ED z\u00E1vad geometrick\u00E9 polohy koleje v souvislosti s p\u0159\u00EDli\u0161 vysok\u00FDm nam\u00E1h\u00E1n\u00EDm kolejov\u00E9ho lo\u017Ee, kter\u00E9 zp\u016Fsobuje nepravideln\u00E9 poklesy kolejov\u00E9ho ro\u0161tu. Vznikl\u00E9 nepravidelnosti kolejov\u00E9 j\u00EDzdn\u00ED dr\u00E1hy ve zp\u011Btn\u00E9 vazb\u011B vedou ke zv\u00FD\u0161en\u00ED dynamick\u00E9ho zat\u00ED\u017Een\u00ED a k rozvoji dal\u0161\u00EDch vad \u017Eelezni\u010Dn\u00EDho svr\u0161ku, nap\u0159.: prask\u00E1n\u00ED srdcovek, p\u0159\u00ED\u010Dn\u00E9 trhliny pra\u017Ec\u016F, vytrh\u00E1v\u00E1n\u00ED vrtul\u00ED apod. Anal\u00FDza chov\u00E1n\u00ED pra\u017Ec\u016F v kolejov\u00E9m lo\u017Ei zahrnuje jak teoretickou tak praktickou \u010D\u00E1st. Za \u00FA\u010Delem nalezen\u00ED p\u0159\u00ED\u010Diny a mechanismu vad a poruch bylo uskute\u010Dn\u011Bno mno\u017Estv\u00ED m\u011B\u0159en\u00ED jak v b\u011B\u017En\u00E9 koleji, tak ve v\u00FDhybk\u00E1ch. Z\u00E1znamy svisl\u00FDch pohyb\u016F betonov\u00FDch pra\u017Ec\u016F byly analyzov\u00E1ny popisn\u011B a byl nalezen zp\u016Fsob vy\u010D\u00EDslen\u00ED svisl\u00E9 spojit\u00E9 tuhosti kolejov\u00E9 j\u00EDzdn\u00ED dr\u00E1"@cs . "The paper is focused on analysis of railway track for dynamic loading by measurements of concrete sleepers in ballast bed. Recently railway companies found overloading of ballast bed under concrete sleepers. This overloading causes an irregular settlement of track length and consequently a decrease of track quality. Such deterioration leads to significantly higher dynamic effects, which cause defects or failures of permanent way elements, e.g. failures of frogs, cracks of the sleepers, breakage of screws etc. The analysis of the concrete sleeper behaviour includes theoretical and experimental parts. The large amount of measurements of vibration parameters has been done in plain track and in switches and crossings. The goal of the measurement usually was identification of failure and defects mechanism. The records of vertical displacements were analysed or qualitatively either quantitatively. The basic examples are attached at the end of the paper."@en . . "P(1M0579), P(GA103/07/0183)" . . . "\u010Cl\u00E1nek je v\u011Bnovan\u00FD anal\u00FDze kvality pra\u017Ecov\u00E9ho podlo\u017E\u00ED p\u0159i dynamick\u00E9m zat\u00ED\u017Een\u00ED pomoc\u00ED m\u011B\u0159en\u00ED svisl\u00E9ho zatla\u010Den\u00ED pra\u017Ec\u016F v kolejov\u00E9m lo\u017Ei. V sou\u010Dasn\u00E9 dob\u011B bylo pozorov\u00E1no mno\u017Estv\u00ED z\u00E1vad geometrick\u00E9 polohy koleje v souvislosti s p\u0159\u00EDli\u0161 vysok\u00FDm nam\u00E1h\u00E1n\u00EDm kolejov\u00E9ho lo\u017Ee, kter\u00E9 zp\u016Fsobuje nepravideln\u00E9 poklesy kolejov\u00E9ho ro\u0161tu. Vznikl\u00E9 nepravidelnosti kolejov\u00E9 j\u00EDzdn\u00ED dr\u00E1hy ve zp\u011Btn\u00E9 vazb\u011B vedou ke zv\u00FD\u0161en\u00ED dynamick\u00E9ho zat\u00ED\u017Een\u00ED a k rozvoji dal\u0161\u00EDch vad \u017Eelezni\u010Dn\u00EDho svr\u0161ku, nap\u0159.: prask\u00E1n\u00ED srdcovek, p\u0159\u00ED\u010Dn\u00E9 trhliny pra\u017Ec\u016F, vytrh\u00E1v\u00E1n\u00ED vrtul\u00ED apod. Anal\u00FDza chov\u00E1n\u00ED pra\u017Ec\u016F v kolejov\u00E9m lo\u017Ei zahrnuje jak teoretickou tak praktickou \u010D\u00E1st. Za \u00FA\u010Delem nalezen\u00ED p\u0159\u00ED\u010Diny a mechanismu vad a poruch bylo uskute\u010Dn\u011Bno mno\u017Estv\u00ED m\u011B\u0159en\u00ED jak v b\u011B\u017En\u00E9 koleji, tak ve v\u00FDhybk\u00E1ch. Z\u00E1znamy svisl\u00FDch pohyb\u016F betonov\u00FDch pra\u017Ec\u016F byly analyzov\u00E1ny popisn\u011B a byl nalezen zp\u016Fsob vy\u010D\u00EDslen\u00ED svisl\u00E9 spojit\u00E9 tuhosti kolejov\u00E9 j\u00EDzdn\u00ED dr\u00E1" . . . "371-378" . . "Brno, VUT-FAST" . "Anal\u00FDza tuhosti kolejov\u00E9 j\u00EDzdn\u00ED dr\u00E1hy p\u0159i dynamick\u00E9m zat\u00ED\u017Een\u00ED"@cs .