The analysis of a five-storey brick Masonry building “type” 77/5

by, Petraq Koka

ABSTRACT

This paper presents the main results of numerical analyses carried out to evaluate the seismic response of an existing brick masonry building, type 77/5, built in 1977.( fig. 1) This type is a representative of many other brick masonry buildings built in 1975-1990, in Albania. The main reason why this building was chosen for analysis is: Its floor plan derives from regular geometry, based on recommendations of the Eurocode 8 [6]. [4.2.3.2 Criteria for regularity in the plan, pg. 48, Part 1] This study firstly intends to analyze and after to propose a way how to rehabilitate this type of building, if this result necessary after the analysis. The study comprehended analysis based on 2 steps: – a linear analysis, with help of finite elements model; – a nonlinear analysis, carried out with a simplified modeling procedure.
These numerical analyses refer to the strengthened building. The results showed that both procedures were useful to investigate the structural problems. The finite elements model furnished a good prediction of the masonry stresses under vertical loads and the modal response of the structure. [13] The non-linear analyzes, with simplified method is performed based on the AM quake program. For this analysis a value of ag = 0.27 m / s2 was accepted. The results of the nonlinear analysis are not the subject of this publication.

Key words: brick (9), building (19), masonry (11) wall (10), slab (4) concrete (4) seismic (7)

How to cite: Koka, P. (2021). The analysis of a five-storey brick masonry building “type” 77/5. Ingenious, 1(1), 82–102.

https://doi.org/10.58944/jozo6575