diplomska naloga
Ana Kragelj (Avtor), Boštjan Brank (Mentor), Janko Logar (Član komisije za zagovor), Tomo Cerovšek (Član komisije za zagovor)

Povzetek

Palične lupinaste konstrukcije

Ključne besede

gradbeništvo;diplomska dela;UN;geodezične kupole;poljubno oblikovane palične kupole;palični oboki;račun palične kupole;

Podatki

Jezik: Slovenski jezik
Leto izida:
Izvor: Ljubljana
Tipologija: 2.11 - Diplomsko delo
Organizacija: UL FGG - Fakulteta za gradbeništvo in geodezijo
Založnik: [A. Kragelj]
UDK: 624.074.5(043.2)
COBISS: 6397537 Povezava se bo odprla v novem oknu
Št. ogledov: 2407
Št. prenosov: 598
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: Lattice shell structures
Sekundarni povzetek: Graduation thesis examines different kinds of lattice shell structures. First we discuss geodesic domes, which are special case of lattice shell structures. For different types of projection onto sphere surface, geometry of geodesic domes is defined, using octahedron or icosahedron as a basic polyhedron. Bar's length and number of bars needed for structure are calculated for different divisions of polyhedron's sides.Solution for joints of metal geodesic dome is presented by using prefabricated elements. Described methods are used for calculation of bar's length for one case of geodesic dome. Some simplifications are also suggested for that case. How to draw geodesic domes and calculate vertex's coordinates in program Mathematica is described. Some kinds of different free form lattice shell structures are shown. Thesis also presents geometrical design of free form sphere dome, grid shell and geodesic dome which is projected onto ellipsoid's surface. In the end lattice shell structure is analyzed for two load cases: snow load and dead load. Using finite element method linear static analysis, buckling analysis, geometrical nonlinear analysis and modal analysis (structure analysis software SAP2000 is used for analyses) are made. Some basic standardized controls are also made.
Sekundarne ključne besede: graduation thesis;civil engineering;geodesic domes;free form lattice shell structures;grid shell;analysis of lattice shell structures;
Vrsta datoteke: application/pdf
Vrsta dela (COBISS): Diplomsko delo/naloga
Komentar na gradivo: Univ. v Ljubljani, Fak. za gradbeništvo in geodezijo
Strani: XI, 36 str.
Vrsta dela (ePrints): thesis
Naslov (ePrints): Lattice shell structures
Ključne besede (ePrints): geodezične kupole;poljubno oblikovane palične kupole;palični oboki;račun palične kupole
Ključne besede (ePrints, sekundarni jezik): geodesic domes;free form lattice shell structures;grid shell;analysis of lattice shell structures
Povzetek (ePrints): V diplomski nalogi so obravnavane palične lupinaste konstrukcije. Kot poseben primer paličnih lupinastih konstrukcij najprej pogledamo geodezične kupole. Pokaţemo, kako se določi geometrijo geodezičnih kupol, ki nastanejo iz oktaedra in ikozaedra, pri različnih načinih projekcije na plašč krogle. Za različne delitve stranic poliedra so izračunane dolţine palic ter število potrebnih palic. Predstavljena je rešitev izvedbe stikov za jeklene palice z uporabo prefabriciranih elementov. Opisani postopki določitve geometrije ter stikovanj palic so ilustrirani na primeru, kjer so predlagane tudi poenostavitve, ki jih lahko uporabimo pri načrtovanju. Opisano je, kako se nariše geodezične sfere in izračuna koordinate njihovih vozlišč s pomočjo programa Mathematica. V nadaljevanju naloge pogledamo še druge tipe paličnih lupinastih konstrukcij: geodezično kupolo, ki se jo dobi s projiciranjem na elipsoid, poljubno oblikovane sferične palične kupole in palične oboke. Na koncu izvedemo računsko analizo palične kupole pri obteţbah lastne teţe in snega. Za izbrano jekleno palično kupolo naredimo z metodo končnih elementov linearno statično analizo, uklonsko analizo, geometrijsko nelinearno analizo in modalno analizo (v ta namen uporabimo program SAP2000) ter osnovne kontrole po standardu.
Povzetek (ePrints, sekundarni jezik): Graduation thesis examines different kinds of lattice shell structures. First we discuss geodesic domes, which are special case of lattice shell structures. For different types of projection onto sphere surface, geometry of geodesic domes is defined, using octahedron or icosahedron as a basic polyhedron. Bar's length and number of bars needed for structure are calculated for different divisions of polyhedron's sides.Solution for joints of metal geodesic dome is presented by using prefabricated elements. Described methods are used for calculation of bar's length for one case of geodesic dome. Some simplifications are also suggested for that case. How to draw geodesic domes and calculate vertex's coordinates in program Mathematica is described. Some kinds of different free form lattice shell structures are shown. Thesis also presents geometrical design of free form sphere dome, grid shell and geodesic dome which is projected onto ellipsoid's surface. In the end lattice shell structure is analyzed for two load cases: snow load and dead load. Using finite element method linear static analysis, buckling analysis, geometrical nonlinear analysis and modal analysis (structure analysis software SAP2000 is used for analyses) are made. Some basic standardized controls are also made.
Ključne besede (ePrints, sekundarni jezik): geodesic domes;free form lattice shell structures;grid shell;analysis of lattice shell structures
ID: 8312926