diplomska naloga
Matija Brecelj (Avtor), Darko Beg (Mentor), Janko Logar (Član komisije za zagovor), Maruška Šubic Kovač (Član komisije za zagovor), Franc Sinur (Komentor)

Povzetek

Analiza upogibno obremenjenih vzdolžno ojačenih polnostenskih nosilcev

Ključne besede

gradbeništvo;UNI;jeklene konstrukcije;vzdolžne ojačitve;polnostenski nosilci;izobčenje pločevin;metoda efektivnih širin;metoda reduciranih napetosti;ekstrapolacija elastičnih kritičnih napetosti;

Podatki

Jezik: Slovenski jezik
Leto izida:
Izvor: Ljubljana
Tipologija: 2.11 - Diplomsko delo
Organizacija: UL FGG - Fakulteta za gradbeništvo in geodezijo
Založnik: [M. Brecelj]
UDK: 624.014.2:624.072.2(043.2)
COBISS: 5888353 Povezava se bo odprla v novem oknu
Št. ogledov: 1664
Št. prenosov: 476
Ocena: 0 (0 glasov)
Metapodatki: JSON JSON-RDF JSON-LD TURTLE N-TRIPLES XML RDFA MICRODATA DC-XML DC-RDF RDF

Ostali podatki

Sekundarni jezik: Angleški jezik
Sekundarni naslov: Longitudinally stiffened plate girders subjected to bending moments
Sekundarni povzetek: This diploma thesis deals with resistance of plate girders subjected to stresses due to bending according to four proposed methods. Two of them are introduced in SIST EN 1993-1-5 standard. These are reduced stress method and effective width method. The other two proposed methods are effective width method derivates. The first part of thessis introduces rules for determinig bending resistance in respect of plate buckling due to direct stresses. In the second part of the thesis the comparison between elastic critical plate-like buckling stresses calculated according to simplifyed analytical methods from SIST EN 1993-1-5 and elastic critical plate-like buckling stresses calculated with EBPlate software. The final two parts of this diploma thesis contain comparison of sugessted methods at the level of different geometric parameters and comparison of sugessted methods with results of numerical simulations. Calculations were made with software developed with Matlab. Calculated and analyzed were more than 5000 cases of different plate girders. Parameters that we varied are: location of stiffener, web slenderness, ratio between width and height of web, stiffenes of the stiffener, ratio between section area of web and section area of flange, ratio between section area of compression and tension flange, number of stiffeners. Numerical simulations were made with Abaqus software.
Sekundarne ključne besede: graduation thesis;steel structures;longitudinal siffeners;plate buckling;effective width method;reduced stress method;extrapolation of elastic critical buckling stresses;
Vrsta datoteke: application/pdf
Vrsta dela (COBISS): Diplomsko delo
Komentar na gradivo: Univ. v Ljubljani, Fak. za gradbeništvo in geodezijo
Strani: XV, 107 str., 2 pril.
Vrsta dela (ePrints): thesis
Naslov (ePrints): Longitudinally stiffened plate girders subjected to bending moments
Ključne besede (ePrints): jeklene konstrukcije;vzdolžne ojačitve;polnostenski nosilci;izbočenje pločevin;metoda efektivnih širin;metoda reduciranih napetosti;ekstrapolacija elastičnih kritičnih napetosti
Ključne besede (ePrints, sekundarni jezik): steel structures;longitudinal stiffeners;plate girders;plate buckling;effective width method;reduced stress method;extrapolation of elastic critical buckling stresses
Povzetek (ePrints): Diplomska naloga obravnava izračun upogibne nosilnosti vzdolžno ojačenih polnostenskih nosilcev po štirih predlaganih metodah. Dve izmed metod sta predlagani v standardu SIST EN 1993-1-5. To sta metoda reduciranih napetosti in metoda efektivnih širin, preostali dve metodi pa sta izpeljanki iz metode efektivnih širin. V prvem delu diplome so predstavljena pravila za upoštevanje vpliva izbočenja pločevine zaradi normalnih napetosti. Drugi del diplomske naloge predstavlja primerjavo elastičnih kritičnih napetosti izbočenja pločevine določenih po poenostavljenih postopkih predlaganih v standardu, ter elastičnimi kritičnimi napetostmi določenimi s pomočjo programa EBPlate. Zadnja dva dela diplomske naloge predstavljata primerjavo predlaganih metod na nivoju različnih geometrijskih parametrov, ter primerjavo vseh metod z numeričnimi simulacijami. Izračuni so opravljeni s pomočjo programa, razvitega v programskem jeziku Matlab. Izračunanih je več kot 5000 primerov, pri katerih je analiziran vpliv posameznih parametrov na rezultate. Parametri, ki smo jih obravnavali, so: položaj ojačitve, vitkost stojine, razmerje med dolžino in višino stojine, normirana togost ojačitve, razmerje med površinama pasnice in stojine, razmerje med površinama tlačene in natezne pasnice ter število ojačitev. Numerične simulacije upogiba so opravljene s pomočjo programa Abaqus.
Povzetek (ePrints, sekundarni jezik): This diploma thesis deals with resistance of plate girders subjected to stresses due to bending according to four proposed methods. Two of them are introduced in SIST EN 1993-1-5 standard. These are reduced stress method and effective width method. The other two proposed methods are effective width method derivates. The first part of thessis introduces rules for determinig bending resistance in respect of plate buckling due to direct stresses. In the second part of the thesis the comparison between elastic critical plate-like buckling stresses calculated according to simplifyed analytical methods from SIST EN 1993-1-5 and elastic critical plate-like buckling stresses calculated with EBPlate software. The final two parts of this diploma thesis contain comparison of sugessted methods at the level of different geometric parameters and comparison of sugessted methods with results of numerical simulations. Calculations were made with software developed with Matlab. Calculated and analyzed were more than 5000 cases of different plate girders. Parameters that we varied are: location of stiffener, web slenderness, ratio between width and height of web, stiffenes of the stiffener, ratio between section area of web and section area of flange, ratio between section area of compression and tension flange, number of stiffeners. Numerical simulations were made with Abaqus software.
Ključne besede (ePrints, sekundarni jezik): steel structures;longitudinal stiffeners;plate girders;plate buckling;effective width method;reduced stress method;extrapolation of elastic critical buckling stresses
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