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Obnašanje stropnega vogalnika modularne enote pri upogibni obremenitvi : magistrsko delo
Sitar, Aljaž (Author), Sinur, Franc (Mentor) More about this mentor... This link opens in a new window

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Abstract
Magistrsko delo obravnava obnašanje stropnega vogalnika modularne enote pri upogibni obremenitvi. Za ta namen smo razvili numeričen model v programu Abaqus in ga verificirali z eksperimentalnimi testi, ki so bili izvedeni na Zavodu za gradbeništvo Slovenije (ZAG). Testni vzorci so bili obremenjeni z osno silo, in vertikalno silo na koncu profila, ki je povzročala upogibni moment v stropnem vogalniku. Za potrebe numeričnih analiz so bili narejeni tudi enoosni natezni preizkusi materiala, kjer smo določili dejanske natezne trdnosti jekel S235JR, S355JR in S355MC, ki je bil uporabljen v testnih vzorcih. Na podlagi razvitega numeričnega modela smo izvedli parametrično analizo, kjer smo preverjali vpliv nivoja tlačne sile na upogibno obnašanje vogalnika modularne enote. Z različnimi načini ojačevanja stropnega vogalnika, smo izboljšali nosilnost in togost vogalnika. V zadnjem delu naloge je predstavljena razporeditev sil v vijakih in vpliv dodatnih preklopnih pločevin na nosilnost vijačnega spoja. Pokazali smo, da je dejanska razporeditev bistveno drugačna od računsko predpostavljene.

Language:Slovenian
Keywords:gradbeništvo, magistrska dela, metoda končnih elementov (MKE), jeklen spoj, enoosni natezni preizkus, materialni model, bilinearni model, eksperimentalna analiza, parametrična analiza
Work type:Master's thesis/paper (mb22)
Tipology:2.09 - Master's Thesis
Organization:FGG - Faculty of Civil and Geodetic Engineering
Year:2016
Publisher:[A. Sitar]
Number of pages:XI, 80 str.
Place:Ljubljana
UDC:519.6:624.014.2(043)
COBISS.SI-ID:7540577 This link opens in a new window
Views:1613
Downloads:413
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Secondary language

Language:English
Title:The behavior of the roof corner element off the modular unit bending
Abstract:
The present master thesis discusses the performance of modular unit ceiling corner under flexural load. For this reason a numerical model was developed in the program Abaqus as well as verified with experimental tests, performed at the Slovenian National Building and Civil Engineering Institute (ZAG). Test samples were loaded with axial force as well as vertical force at the end of the profile, causing bending moment in the ceiling corner. A single-axe tensile test was also made for the needs of numeric analysis, where actual tensile strengths of steel S235JR, S355JR and S355MC were used in the test samples. On the basis of the developed numeric model a parametric analysis was performed, testing the influence compressive load level has on the bending performance of modular unit corner. By using various means to intensify ceiling corner, its load capacity and stiffness have been improved. The final part of the thesis presents the allocation of forces in screws and the influence of additional switch tin plates on the load capacity of bolting joint. It has been proven that the actual allocation is quite different to its constructed value.

Keywords:civil engineering, master of science thesis, finite element method (FEM), steel joint, uniaxial tensile test, the material model, bilinear model, experimental analysis, parametric analysis

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