diplomska naloga
Marko Lavrenčič (Author), Jože Korelc (Mentor), Janko Logar (Thesis defence commission member), Primož Može (Co-mentor)

Abstract

V diplomski nalogi ugotavljam kako delno togi spoji vplivajo na obnašanje jeklenih okvirjev. Celotna diplomska naloga je obravnavana na primeru okvirja, ki je del izmišljenega večetažnega objekta. Najprej so dimenzionirani nosilci in stebri, nato pa je, v prvem delu računa spojev, z uporabo komponentne metode, izračunana momentna nosilnost obravnavanih spojev. Ti so zasnovani kot vijačeni spoji prečka steber s podaljšano čelno pločevino. V drugem delu je prav tako po komponentni metodi izračunana začetna togost spojev Sj,ini. S pomočjo nosilnosti ter togosti je nato definiran graf moment-zasuk, ki določa obnašanje vozlišča. V programu SCIA Engineer 2013 je nato opravljena geometrijsko nelinearna numerična analiza, kjer so spoji modelirani kot nelinearne vzmeti. Kot rezultate opazujem faktor kritične obtežbe acr, horizontalni pomik zgornje etaže konstrukcije ter zasuke spojev. Pri osnovni zasnovi spoja nato spreminjam debelino čelne pločevine in opazujem kako se s tem spreminjajo prej navedene količine.

Keywords

gradbeništvo;diplomska naloga;UNI;B-GR;delno togi spoji;delno nosilni spoji;stabilnost okvirjev;duktilnost;plastični členek;plastična nosilnost spojev;togostni koeficienti;

Data

Language: Slovenian
Year of publishing:
Typology: 2.11 - Undergraduate Thesis
Organization: UL FGG - Faculty of Civil and Geodetic Engineering
Publisher: M. Lavrenčič
UDC: 624.014.2(497.4)(043.2)
COBISS: 6776161 Link will open in a new window
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Downloads: 634
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Other data

Secondary language: English
Secondary title: Influence of semi-rigid connections on global stability of frames
Secondary abstract: Influence of semi-rigid connections on behaviour of steel frames is analyzed in this thesis. The entire thesis is based on a steel frame, part of a fictitious multi-storey building. Firstly the beams and columns are designed, which is followed by the first chapter concerning the connections, in which the moment capacity of the connections is calculated using the component method. The joints are designed as bolted extended end plate connections. In the following part the initial rotational stiffness of the connection Sj,ini is calculated, also using the component method. Using moment capacity and stiffness, the moment-rotation diagram, which defines the behaviour of the connection, is defined. A geometrically nonlinear numerical analysis is then performed in SCIA Engineer 2013, where joints are modelled as nonlinear springs. From the results, the critical load coefficient acr, horizontal displacement of the upper storey and the rotation of joints are considered. Furthermore the thickness of the end plate is then altered and the effect on the results listed before is considered.
Secondary keywords: semi-rigid connections;partial strength connections;frame stability;ductility;plastic hinge;plastic connection resistance;stiffness coefficient;
File type: application/pdf
Type (COBISS): Bachelor thesis/paper
Thesis comment: Univ. v Ljubljani, Fak. za gradbeništvo in geodezijo
Pages: X, 39 str., 1 pril.
ID: 8708226