diplomska naloga
Filip Andolšek (Author), Matjaž Dolšek (Mentor), Jure Snoj (Co-mentor)

Abstract

V diplomski nalogi je obravnavana potresna analizi enodružinske zidane stavbe, zgrajene leta 1993, na obrobju Ljubljane. V prvem delu diplomske naloge je predstavljeno teoretično ozadje določitve potresne obtežbe in nosilnosti tako posameznih zidov kot tudi celotne konstrukcije. Pri določitvi nosilnosti so upoštevani trije značilni porušni mehanizmi, ki nastanejo v zidanih stavbah, pri kombinaciji vodoravne in navpične obtežbe: upogibni mehanizem in oba strižna mehanizma. V drugem delu je izračunana potresna odpornost obravnavanega objekta. Za trdnost materiala so upoštevane srednje vrednosti, ki so zmanjšane za faktor zaupanja. Potrebno je določiti lastne teže posameznih konstrukcijskih sklopov in mase celotne konstrukcije. Potresna sila je določena z metodo z vodoravnimi silami, pri čemer je bil upoštevan največji spektralni pospešek ter faktor obnašanja 1,5. V analizi je bila obravnavana le spodnja etaža, saj so tam največje potresne obremenitve. Najprej je bila ocenjena nosilnost celotne konstrukcije po elastični analizi, pri čemer je upoštevana popolna prerazporeditev sil iz preobremenjenih zidov na zidove, ki imajo še rezerve. Naredili smo tudi poenostavljeno nelinearno analizo pri čemer je bila tako dobljena nosilnost za y smer 797 kN, kar je le za približno 10% manjša vrednost od nosilnosti, ki smo jo ocenili na osnovi rezultatov linearno elastične analize (880 kN). Ugotovljeno je bilo, da projektna potresna obremenitev presega projektno nosilnost zidov iz česar sklepamo, da objekt v celoti ne zadosti zahtevam standarda Evrokod 8.

Keywords

gradbeništvo;diplomska dela;potresno inženirstvo;Evrokod;zidane stavbe;potisna analiza;potresna odpornost;mehanske karakteristike;materiali;strižna trdnost;

Data

Language: Slovenian
Year of publishing:
Typology: 2.11 - Undergraduate Thesis
Organization: UL FGG - Faculty of Civil and Geodetic Engineering
Publisher: [F. Andolšek]
UDC: 624.042.7:728.3(497.4)(043.2)
COBISS: 7272289 Link will open in a new window
Views: 2203
Downloads: 494
Average score: 0 (0 votes)
Metadata: JSON JSON-RDF JSON-LD TURTLE N-TRIPLES XML RDFA MICRODATA DC-XML DC-RDF RDF

Other data

Secondary language: English
Secondary title: Assessment of seismic resistance of a single-family building in the suburb of Ljubljana
Secondary abstract: The thesis addresses assessment of seismic resistance of a single-family masonry building, built in 1993, in the suburb of Ljubljana. The theoretical background for determination of design seismic loads and capacity of both masonry walls as well as the whole structure is presented in the first part of the thesis. The determination of the strength of masonry walls is also described with consideration of three failure mechanisms that occur in masonry wall: sliding shear failure, shear failure with diagonal cracks, flexural failure. In the second part follows practical example where we calculate seismic resistance of the building. For the strength of materials we take into account the mean values reduced by a confidence factor. It is necessary to determine the weight of individual structural assemblies and the mass of the whole structure. Seismic force is determined by the method of horizontal forces, where is taken into account the maximum spectral acceleration, and behaviour factor 1,5. Seismic resistance is then checked only for the ground floor since there the greatest storey shear force occurs. Firstly the base shear was calculated on the basis of elastic analysis by taking into account the full redistribution of seismic forces to those walls which still had reserves. The simplified nonlinear analysis was also performed. Sodetermined base shear in y direction amounted to 797 kN, which is only about 10% less than the base shear estimated from linear elastic analysis (880 kN). It was found that design seismic load exceeded the estimated design value of base shear strength, which indicated that the investigated building does not comply the safety requirements of the Eurocodes 8.
Secondary keywords: civil engineering;graduation thesis;earthquake engineering;Eurocode;masonry building;pushover analysis;seismic assessment;mechanical characteristics of built materials;shear strength;
File type: application/pdf
Type (COBISS): Bachelor thesis/paper
Thesis comment: Univ. v Ljubljani, Fak. za gradbeništvo in geodezijo
Pages: X, 36 str.
ID: 9056903