Potresna analiza in načrtovanje utrditvenih ukrepov za objekt kulturne dediščine ob upoštevanju zahtev druge generacije Evrokodov : magistrsko delo

Poltrini, Žiga (author), Bosiljkov, Vlatko (mentor)

V magistrski nalogi je izdelana nelinearna seizmična analiza po predlogu delovne različice novega Evrokoda 8 na primeru zahtevnejše starejše zidane stavbe - palače. V prvem delu naloge so predstavljene spremembe pri preverjanju potresne odpornosti obstoječih zidanih stavb, ki se nanašajo na nosilnost zidov, deformacijsko kapaciteto zidov in izvedbo nelinearne analize. Temu sledi opis konstrukcije obravnavane stavbe, nabor materialnih karakteristik, nabor vplivov in opis modeliranja konstrukcije. Podani so predlogi utrditvenih ukrepov za izboljšanje obnašanja konstrukcij med potresnim delovanjem. Vpliv potresne obtežbe modeliramo z upoštevanjem Evrokodovega elastičnega spektra. Opisu modeliranja tako sledi opis načina definicije spektrov pospeškov po novi delovni različici Evrokoda. Z upoštevanjem zahtev obstoječe različice Evrokoda in delovne različice novega standarda izvedemo potisno analizo in s pomočjo metode N2 ocenimo njeno potresno odpornost. Najprej je opravljena analiza objekta v obstoječem stanju, čemur sledi analiza treh ojačitvenih variant. V zaključku primerjamo razlike med trenutno veljavnim standardom in novo delovno različico Evrokoda. Temu sledi primerjava rezultatov analize po obeh različicah standarda.

• Language: Slovenian
• Keywords: obstoječe zidane konstrukcije, potisna analiza, N2 metoda, nearmirano in povezano zidovje, Evrokod 8, Evrokod 8-3, prekladni slop, zidni slop, potresna zmogljivost stavbe
• Work type: Master's thesis/paper
• Typology: 2.09 - Master's Thesis
• Organization: FGG - Faculty of Civil and Geodetic Engineering
• Year: 2023
• PID: 20.500.12556/RUL-144504
• Publication date in RUL: 26.02.2023

Secondary language

• Language: English
• Title: Seismic analysis and planning of strengthening measures for a cultural heritage building while taking into account the requirements of the second generation of Eurocodes : master thesis

Abstract

In the master's thesis, a non-linear seismic analysis was made according to the proposal of the draft version of the new Eurocode 8 on the case study of cultural heritage brick building - palace. In the first part of the thesis, changes in the verification of the seismic resistance of the existing brick buildings were presented. The changes related to the load-bearing capacity of the walls, the deformation capacity of the walls, and the performance of non-linear analysis. This was followed by a description of the structure of the analysed building, defining material characteristics, defining influences, and a description of the modelling of the structure. Proposals for different strengthening measures were given to improve the behaviour of structures during seismic action. The influence of seismic loading was modelled by considering the Eurocode elastic spectrum. Following the modelling description a description of the acceleration spectra as defined according to the new working version of the Eurocode was presented. Considering the requirements of the existing version of the Eurocode and the draft version of the new standard, we have performed a push-over analysis and evaluated its seismic resistance using the N2 method. Firstly, an analysis of the building in its existing state was carried out. It was then followed by an analysis of three strengthening options. In conclusion, we have compared the differences between the currently valid standard and the new draft version of the Eurocode. This was followed by a comparison of the results of the analysis according to both versions of the standard.

• Keywords: existing masonry building, pushover analysis, N2 method, unreinforced and confined masonry, Eurocode 8, Eurocode 8-3, spandrels, piers, building's seismic performance