Naslov
Effect of anisotropy of masonry on the behaviour of unreinforced and confined masonry walls under ground motion

Autori
Smilović, Marija ; Radnić, Jure ; Grgić, Nikola ; Baloević, Goran

Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, znanstveni

Izvornik
11th International Conference on Advanced Computational Engineering and Experimenting, ACE-X2017 / - , 2017

Skup
11th International Conference on Advanced Computational Engineering and Experimenting, ACE-X--2017

Mjesto i datum
Beč, Austrija, 03.07.2017. - 06.07.2017

Vrsta sudjelovanja
Poster

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
masonry wall, ground motion, numerical model, effect of anisotropy

Sažetak
This paper presents the numerical test results that consider the effect of anisotropy on the behaviour of unreinforced and confined masonry walls under horizontal harmonic ground acceleration. Two-storey masonry walls with different lengths (3m, 6m, 12m) are analysed. The wall foundations are supported on a rigid base, with possibility of lifting. A non-linear macro model of masonry is used. Cases of strong masonry (high strength and stiffness) and weak masonry (low strength and stiffness) are analysed. Different coefficients of anisotropy of masonry ca (0.2, 0.4, 0.6, 1.0) are considered. It is adopted that excitation period corresponds to the fundamental period of individual elastic wall. Horizontal displacement at the top of the walls, vertical stresses in masonry and concrete at the bottom of the walls and stresses in the longitudinal bars at the bottom of the vertical ring beams are shown for each analysed case. It is concluded that the ultimate bearing capacity and deformability of walls, as well as stresses in masonry, concrete and reinforcement under dynamic excitation significantly depend on the anisotropy of masonry. It is also concluded that, with the same coefficient of anisotropy, the behaviour of masonry walls depends on its type (unreinforced, confined), height to length ratio (0.5, 1.0, 2.0), and the quality of masonry (strong, weak).

Izvorni jezik
Engleski

Znanstvena područja
Građevinarstvo

POVEZANOST RADA