Ocena potresne odpornosti poslovne stavbe

diplomska naloga

Franci Petrič (Author), Matjaž Dolšek (Mentor), Janko Logar (Thesis defence commission member), Tatjana Isaković (Thesis defence commission member)

Abstract

V nalogi obravnavamo oceno potresne odpornosti poslovne stavbe v Kranju. Za določitev projektnih notranjih sil konstrukcijskih elementov smo izbrali q-faktor metodo, ki predstavlja eno izmed možnih metod za oceno potresne odpornosti obstoječih stavb po Standardu Evrokod 8-3. Kontrola elementov se izvede tako, da se za vsak element s pomočjo analize določijo učinki vpliva in primerjajo z nosilnostjo. Nosilnost elementov se določi z uporabo srednjih vrednosti materialnih karakteristik. V četrtem poglavju je opisana obravnavana konstrukcija. Izračunane so tudi projektne obremenitve izbranih konstrukcijskih elementov. Konstrukcija je modelirana v programu Tower 7. Z namenom preučevanja vpliva opečnih polnil smo izdelali dva modela. Projektno potresno obremenitev posameznih elementov, smo primerjali z njihovo upogibno in strižno nosilnostjo. Tak način kontrole elementov je osnova za določitev potresne odpornosti z uporabo q-faktor metode. Izkazalo se je, da konstrukcija ni sposobna prevzeti projektnega potresnega vpliva. Informacije, ki jih dobimo z uporabo q-faktor metode, so precej skope, saj metoda temelji na linearno elastični analizi in kontroli posameznih elementov s čimer pa je onemogočena informiranost o poškodovanosti konstrukcije, kar je ključna informacija v procesu sanacije stavbe. Zaradi tega je bolj smiselno, da se za oceno potresne odpornosti obstoječih objektov uporabi nelinearno metodo analize, kar pa je v praksi težko izvedljivo, predvsem zaradi nezadostnih virov za izvedbo takšne analize.

Keywords

gradbeništvo;diplomska naloga;UNI;ocena potresne odpornosti;Evrokod 8-3;q-faktor metoda;Tower 7;armiranobetonski okvir;zidana polnila;načrtovanje nosilnosti;

Data

Language:	Slovenian
Year of publishing:	2016
Typology:	2.11 - Undergraduate Thesis
Organization:	UL FGG - Faculty of Civil and Geodetic Engineering
Publisher:	[F. Petrič]
UDC:	624.042.7:725(497.4)(043.2)
COBISS:	7620449
Views:	1833
Downloads:	578
Average score:	0 (0 votes)
Metadata:

Other data

Secondary language:	English
Secondary title:	Seismic performance assessment of an office building
Secondary abstract:	The thesis deals with the seismic performance assessment of an office building in Kranj. The design seismic forces of structural elements were estimated on the basis of the q-factor method, which is one of the possible methods to assess seismic resistance of the structure according to Eurocode 8-3. The design check was made so that all structural elements were verified by checking that seismic demands due to the reduced seismic action do not exceed the corresponding capacities. For calculation of the capacities, mean value properties of materials were used. In the fourth chapter the office building is described and the seismic demand is estimated for the selected structural elements. The structure was modelled by program Tower 7. Two structural models were made in order to investigate the effects of masonry infills. The seismic demand on the structural elements was compared to the design values of load carrying capacity. Such a comparison represents a basis for the evaluation of the seismic resistance using q-factor method. It is shown that the structure is not able to undertake the design seismic loads. However, the q-factor method provides very limited information, since it is based on the linear elastic analysis and verification of performance of each structural element without consideration of redistribution of seismic action due to structural damage. Thus the q-factor method cannot be used to provide information about the damage of the structure, which is a key information in the process of rehabilitation of a building. For this reason, it is more appropriate to assess seismic performance of existing buildings by using nonlinear analysis. Due to the lack of resources it is still difficult to perform such analysis by engineering practitioners.
Secondary keywords:	graduation thesis;seismic assessment;Eurocode 8-3;q-factor method;Tower 7;reinforced concrete frame;masonry infill;capacity design;
Type (COBISS):	Undergraduate thesis
Thesis comment:	Univ. v Ljubljani, Fak. za gradbeništvo in geodezijo
Pages:	XIV, 56 str.
ID:	9176139