Title: Analysis of existing reinforced concrete buildings and buildings with additional floors under seismic load
Original Title: Proračun ponašanja u potresu armiranobetonskih postojećih i nadograđenih zgrada
Authors: Shala Alush, Jelena Bleiziffer
DOI: https://doi.org/10.5592/CO/PhDSym.2019.08
First page: 95 Last page: 103
Publish date print/online: 9/10/2019
Abstract: The paper presents the analysis of an existing building with an addition of two floors. Seismic analysis was carried out on three different models. Results obtained by concrete compressive strength testing and geotechnical testing were included in the calculations. The discussion presented in this paper serves as a starting point for defining a research programme aimed at developing methodology on how to approach such works, with an emphasis on the study of interaction between new and old structures.
Keywords: additions to buildings, load-carrying capacity, numerical model, old concrete, earthquake
Sažetak: U radu je prikazan proračun postojeće zgrade s dvoetažnom nadgradnjom. Proveden je potresni proračun triju modela i analizirana uključenost starog betona u nosivost. Za potrebe proračuna korišteni su rezultati ispitivanja betona postojeće konstrukcije te geomehanička ispitivanja temeljnog tla. Primjer prikazan u radu služi kao polazište za definiranje programa istraživanja kojim bi se razradila metodologija za analizu u slučaju nadogradnje, osobito kroz istraživanja zajedničkog djelovanja stare i nove konstrukcije.
Ključne riječi: nadgradnja, nosivost, numerički model, stari beton, potres