diplomska naloga
Ana Bajželj (Author), Bogdan Zgonc (Mentor), Janko Logar (Thesis defence commission member), Maruška Šubic Kovač (Thesis defence commission member), Darja Šemrov (Co-mentor)

Abstract

Elementi železniške proge ter izračun sil in napetosti v zgornjem ustroju

Keywords

gradbeništvo;diplomska dela;UNI;zgorni ustroj;Zimmermannova metoda;osna obremenitev proge;upogibni moment;upogibna napetost;pritisk;upogib tirnice;

Data

Language: Slovenian
Year of publishing:
Source: Ljubljana
Typology: 2.11 - Undergraduate Thesis
Organization: UL FGG - Faculty of Civil and Geodetic Engineering
Publisher: [A. Bajželj]
UDC: 625.1/.5(043.2)
COBISS: 5467489 Link will open in a new window
Views: 2682
Downloads: 2969
Average score: 0 (0 votes)
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Other data

Secondary language: English
Secondary title: Railway track elements and the calculation of forces and stresses in the superstructure
Secondary abstract: In the first part of thesis, based on Pravilnik o zgornjem ustroju železniških prog published in UL RS 92/2010, elements and their characteristic of the railway superstructure, which decisive impact on the state of railway tracks are in detail described. These elements are rail, sleeper, ballast bed and railway fastening. In the second part of this thesis the main and regional lines in the Slovenian rail network are introduced. Slovenian railway network is ranked into nine categories based on the allowable length and axle load. In this section Winkler's, Zimmermann's and Eisenmann's methods for calculating forces and stresses in the superstructure calculation are listed and described in detail. Based on superstructure elements characteristics, which valid for three sections on the X corridor, dynamic bending moments, dynamic bending stress, pressure and bending have been calculated separately for Zimmermann's and Eisenmann's method and for 2 different locomotives, namely Siemens locomotive SŽ 541 and locomotive SŽ 363 running at different speeds. Based on this calculation I found out that locomotive SŽ 541 cause for 36% higher dynamic bending stress than locomotive SŽ 363 but the results are still within the permissible stresses. In the end of this thesis a comparison of bending moments and stress for those two locomotives calculated according to Zimmermann's method has been made. I found out that those two locomotives have the same bending moments and bending stress in case when locomotive SŽ 541 runs alt speed 10 km/h and locomotive SŽ 363 runs at speed 115 km /h.
Secondary keywords: graduation thesis;civil engineering;superstructure;Zimmermann's method;axle load lines;bending moment;bending stress;pressure;bending;
File type: application/pdf
Type (COBISS): Undergraduate thesis
Thesis comment: Univ. v Ljubljani, Fak. za gradbeništvo in geodezijo
Pages: X, 74 str.
Type (ePrints): thesis
Title (ePrints): Railway track elements and the calculation of forces and stresses in the superstructure
Keywords (ePrints): zgornji ustroj;Zimmermannova metoda;osna obremenitve proge;upogibni moment;upogibna napetost;pritisk;upogib tirnice
Keywords (ePrints, secondary language): superstructure;Zimmermann's method;axle load lines;bending moment;bending stress;pressure;bending
Abstract (ePrints): V diplomskem delu so z upoštevanjem Pravilnika o zgornjem ustroju, objavljenega v Uradnem listu Republike Slovenije št. 92/2010 podrobno opisani elementi zgornjega ustroja in njihove karakteristike, ki odločilno vplivajo na stanje železniške proge. Opisani elementi so tirnice, pragi, tirna greda in tirni pribor. V drugem delu so predstavljene glavne in regionalne proge na slovenskem železniškem omrežju in razvrstitev le teh v devet kategorij na podlagi dovoljenih dolžinskih in osnih obremenitev. V nadaljevanju so predstavljene Winklerjeva, Zimmermannova in Eisenmannova metoda izračuna sil in napetosti v zgornjem ustroju. Na podlagi karakteristik elementov zgornjega ustroja, ki veljajo na treh odsekih X vse-evropskega koridorja, sem po Zimmermannovi in Eisenmannovi metodi izračunala upogibne momente, upogibne napetosti, pritiske in upogibe tirnic, ki jih povzročata večsistemska Siemensova lokomotiva SŽ 541 in enosistemska lokomotiva SŽ 363. Pri tem sem vzporedno s tem s pomočjo dinamičnega koeficienta izračunala tudi vpliv hitrosti na omenjene parametre. Kot sem iz izračuna ugotovila, povzroča lokomotiva SŽ 541 na teh treh odsekih za 36% večje upogibne napetosti, kot lokomotiva SŽ 363, vendar pa so vrednosti še vedno znotraj dovoljenih napetosti. Na koncu diplomske naloge sem na podlagi izračunov ugotovila še, da imata lokomotivi SŽ 541 in SŽ 363 enake dinamične upogibne momente in napetosti, ko lokomotiva SŽ 541 vozi s hitrostjo 10 km/h, lokomotiva SŽ 363 pa s hitrostjo 115 km/h.
Abstract (ePrints, secondary language): In the first part of thesis, based on Pravilnik o zgornjem ustroju železniških prog published in UL RS 92/2010, elements and their characteristic of the railway superstructure, which decisive impact on the state of railway tracks are in detail described. These elements are rail, sleeper, ballast bed and railway fastening. In the second part of this thesis the main and regional lines in the Slovenian rail network are introduced. Slovenian railway network is ranked into nine categories based on the allowable length and axle load. In this section Winkler's, Zimmermann's and Eisenmann's methods for calculating forces and stresses in the superstructure calculation are listed and described in detail. Based on superstructure elements characteristics, which valid for three sections on the X corridor, dynamic bending moments, dynamic bending stress, pressure and bending have been calculated separately for Zimmermann's and Eisenmann's method and for 2 different locomotives, namely Siemens locomotive SŽ 541 and locomotive SŽ 363 running at different speeds. Based on this calculation I found out that locomotive SŽ 541 cause for 36% higher dynamic bending stress than locomotive SŽ 363 but the results are still within the permissible stresses. In the end of this thesis a comparison of bending moments and stress for those two locomotives calculated according to Zimmermann's method has been made. I found out that those two locomotives have the same bending moments and bending stress in case when locomotive SŽ 541 runs alt speed 10 km/h and locomotive SŽ 363 runs at speed 115 km /h.
Keywords (ePrints, secondary language): superstructure;Zimmermann's method;axle load lines;bending moment;bending stress;pressure;bending
ID: 8312033