20.500.12556/RUL-86395 Računalniški program za optimalno dimenzioniranje armiranobetonskih prerezov diplomska naloga A computer program for optimization of reinforced concrete cross section 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. 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. gradbeništvo diplomska naloga UNI AB prečni prerez mejna nosilnost dvojno ekscentrična osna obremenitev poljubna oblika optimizacija graduation thesis civil engineering RC cross section ultimate bearing capacity combined biaxial bending and axial load arbitrary shape optimization true false false [Ž. Krofl] Slovenski jezik Angleški jezik Diplomsko delo 2016-10-13 03:49:07 2016-11-23 16:21:27 2022-12-16 15:03:49 0000-00-00 00:00:00 2016 0 Ljubljana 2016 Ljubljana X, 58 str. 0000-00-00 NiDoloceno NiDoloceno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 624.012.45:624.046:004.42 (043.2) 7782497 GRU3501_Krofl.pdf GRU3501_Krofl.pdf 1 6C53DAA6DBE5A117F200A91FC842FE7B 43d1935446626e398ace8b08de13364a8792418538fdf2f186867890ce598d3f fbde0014-a1b2-11eb-a523-00155dcfd717 20.500.12556/rul/83310dc6-c1b0-4559-9cbf-539b93b21833 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=98405 Fakulteta za gradbeništvo in geodezijo 0 0 0