diplomska naloga
Žiga Poltrini (Author), Matjaž Dolšek (Mentor), Tomaž Maher (Thesis defence commission member), Anže Babič (Co-mentor)

Abstract

V diplomski nalogi je narejena ocena potresne odpornosti zidane stavbe po standardu Evrokod 8-3. Uporabljena je metoda N2, ki sestoji iz izvedbo nelinearne statične (potisne) analize na modelu z več prostostnimi stopnjami in oceno potresnih zahtev na modelu z eno prostostno stopnjo. Potisna analiza je izvedena v dveh korakih. Najprej je določena potisna krivulja na nivoju etaž. Pri tem so upoštevani mehanizmi upogibne porušitve, strižne porušitve zaradi prestriga in strižne porušitve zaradi diagonalnih razpok. Pri določitvi materialnih lastnosti zidov je poleg delnih materialnih varnostnih faktorjev upoštevan tudi faktor zaupanja zaradi omejenega poznavanja konstrukcije. V naslednjem koraku so etažne potisne krivulje združene, s čimer je definirana potisna krivulja na nivoju konstrukcije. S transformacijo slednje na ekvivalenten sistem z eno prostostno stopnjo je omogočen račun potresnih zahtev in verifikacija potresne odpornosti. Poleg kontrole mejnega stanja omejitve poškodb in mejnega stanja velikih poškodb, ki jo predvideva standard Evrokod 8-3, je izvedena tudi kontrola mejnega stanja blizu porušitve. Kontrole so izvedene ločeno za smeri obremenjevanja X in Y. Ugotovljeno je, da je mejno stanje omejitve poškodb prekoračeno v obeh smereh obremenjevanja, mejno stanji velikih poškodb in mejno stanje blizu porušitve pa le v smeri Y. Zaključeno je, da stavba ne izpolnjuje zahtev standarda Evrokod 8-3.

Keywords

gradbeništvo;diplomska naloga;UNI;B-GR;Potresno inženirstvo;Evrokod;potisna analiza;nelinearna analiza;zidana stavba;metoda N2;ocena potresne odpornosti;

Data

Language: Slovenian
Year of publishing:
Typology: 2.11 - Undergraduate Thesis
Organization: UL FGG - Faculty of Civil and Geodetic Engineering
Publisher: [Ž. Poltrini]
UDC: 624.042.7(043.2)
COBISS: 8540769 Link will open in a new window
Views: 1246
Downloads: 707
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 earthquake resistance of a masonry building using a simplified nonlinear analysis
Secondary abstract: In the diploma thesis an assessment of the earthquake resistance of the masonry building was made according to the Eurocode 8-3 standard. The N2 method, which consists of the implementation of non-linear static push-over analysis on a multi-degree-of-freedom model and the estimation of seismic demand on single-degree-of-freedom model, was used. The push-over analysis was performed in two steps. Firstly, a push-over curve at the storey level was determined by taking into account the mechanisms of flexural failure, shear failure due to sliding and shear failure due to formation of diagonal cracks. The material properties of the walls were estimated by consideration of the partial material safety factors and the confidence factor due to limited knowledge of the construction. In the next step, the storey push-over curves were joined together, which resulted in the push-over curve on a structural level. By transforming the latter into an equivalent single-degree-of-freedom model it was made possible to estimate the seismic demand and to verify performance of the structure. Besides the verification of the limit state of damage limitation and the limit state of significant damage, which is envisaged by the Eurocode 8-3 standard, the verification of the near collapse limit state was performed independently for X and Y direction of seismic action. It was found that the limit state of damage limitation is not verified in both directions of loading, while the limit state of significant damage and near collapse limit were not verified only in the direction Y. It is concluded that the building does not meet the safety requirements of the standard Eurocodes 8-3.
Secondary keywords: civil engineering;graduation thesis;earthquake engineering;masonry building;Eurocode;pushover analysis;nonlinear analysis;N2 method;earthquake resistance assessment;
Type (COBISS): Bachelor thesis/paper
Study programme: 0
Embargo end date (OpenAIRE): 1970-01-01
Thesis comment: Univ. v Ljubljani, Fak. za gradbeništvo in geodezijo
Pages: VIII, 36 str., [3] str. pril.
ID: 10961179