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Računalniški program za optimalno dimenzioniranje armiranobetonskih prerezov : diplomska naloga
ID Krofl, Žiga (Avtor), ID Lopatič, Jože (Mentor) Več o mentorju... Povezava se odpre v novem oknu

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PID: 20.500.12556/rul/83310dc6-c1b0-4559-9cbf-539b93b21833

Izvleček
V diplomski nalogi je predstavljen računalniški program za optimalno dimenzioniranje armiranobetonskih prerezov poljubne oblike, obremenjenih z dvojno ekscentrično osno silo. Računanje poteka v programu Excel, za postopek optimizacije je uporabljen podprogram Solver. Obod prereza predstavim kot mnogokotnik, armaturo podam kot točke v prerezu. Pri računu predpostavim linearen potek deformacij po prerezu in delovne diagrame betona običajne trdnosti ter armature skladno z EC2. Pri integraciji napetosti po prerezu uporabim Greenov izrek in prevedem površinski integral na krivuljni integral po obodu prereza. Notranje količine izračunam za vsak odsek mnogokotnika posebej. Vse enačbe na nivoju odseka so analitične. Pravilnost programa potrdim z računom enostavnih prerezov. Dobljene rezultate primerjam z obstoječimi rešitvami. Na koncu optimiziram nesimetričen prerez obremenjen z dvojno ekscentrično osno silo.

Jezik:Slovenski jezik
Ključne besede:gradbeništvo, diplomska naloga, UNI, AB prečni prerez, mejna nosilnost, dvojno ekscentrična osna obremenitev, poljubna oblika, optimizacija
Vrsta gradiva:Diplomsko delo
Tipologija:2.11 - Diplomsko delo
Organizacija:FGG - Fakulteta za gradbeništvo in geodezijo
Kraj izida:Ljubljana
Založnik:[Ž. Krofl]
Leto izida:2016
Št. strani:X, 58 str.
PID:20.500.12556/RUL-86395 Povezava se odpre v novem oknu
UDK:624.012.45:624.046:004.42 (043.2)
COBISS.SI-ID:7782497 Povezava se odpre v novem oknu
Datum objave v RUL:23.11.2016
Število ogledov:4372
Število prenosov:736
Metapodatki:XML DC-XML DC-RDF
:
KROFL, Žiga, 2016, Računalniški program za optimalno dimenzioniranje armiranobetonskih prerezov : diplomska naloga [na spletu]. Diplomsko delo. Ljubljana : Ž. Krofl. [Dostopano 6 april 2025]. Pridobljeno s: https://repozitorij.uni-lj.si/IzpisGradiva.php?lang=slv&id=86395
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Sekundarni jezik

Jezik:Angleški jezik
Naslov:A computer program for optimization of reinforced concrete cross section
Izvleček:
A computer program for optimization of reinforced concrete cross section of an arbitrary shape loaded with combined biaxial bending and axial load is presented in the graduation thesis. The computation takes place in the Excel computer program, optimization is performed with the Solver Add–in. The perimeter of the cross section area is presented as a polygon, the steel reinforcment bars are input as points in the area. The stress-strain relationship of the conventional strength concrete and steel rebar are compliant with the EC2 code. Bernoulli’s assumption that plane sections remain plane is valid. By employing Green’s Theorem, the double integral of the longitudinal stresses is transformed to line integral along the cross sections perimeter. For each section of the polygon, the forces are computed. All equations on the section level are analytical in nature. The verification of the program is performed by comparing the results obtained on standard cross sections with results available in the literature. The application of the computer program is illustrated with asymetrical RC cross-section design example.

Ključne besede:graduation thesis, civil engineering, RC cross section, ultimate bearing capacity, combined biaxial bending and axial load, arbitrary shape, optimization

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