Out-of-plane experimental study of strengthening slender non-structural masonry walls

Martin Klun (Avtor), David Antolinc (Avtor), Vlatko Bosiljkov (Avtor)

Povzetek

Non-structural masonry partition walls, which are mainly designed to functionally separate spaces in the buildings and provide physical barriers between rooms, were traditionally built from either solid or hollow clay units or autoclaved aerated concrete blocks. Recent earthquakes have revealed the high vulnerability of these elements, even in the case of low to moderate seismic events. Public buildings (e.g., hospitals and schools) are particularly vulnerable. Due to their greater floor-to-floor heights and the response spectra of floors, the dynamic response of primary structure may provoke significantly higher seismic loads on partition walls. The main goal of the presented experimental study was to investigate the behavior of slender partition walls loaded out-of-plane with a simple and cost-effective approach that may be applied through routine refurbishment works. Eleven full-scale slender non-structural masonry partition walls were built with brickwork and cement lime mortar. Eight of them were additionally strengthened with different techniques, including glass fiber-reinforcing fabric and low-cost glass fiber-rendering mesh. To evaluate the efficiency of the applied strengthening solutions, out-of-plane quasi-static cyclic experiments were conducted. By applying meshes over the entire surfaces, the resistance was significantly improved with the low-cost approach reaching half of the resistance of the commercially available strengthening system preserving the same displacement capacity.

Ključne besede

nekonstrukcijski predelni zidovi;protipotresno utrjevanje;steklena vlakna;izvenravninsko obrnašanje;ciklično obremenjevanje;non-structural masonry partition walls;seismic strengthening;glass fiber;out-of-plane behavior;cyclic loading;

Podatki

Jezik:	Angleški jezik
Leto izida:	2021
Tipologija:	1.01 - Izvirni znanstveni članek
Organizacija:	UL FGG - Fakulteta za gradbeništvo in geodezijo
UDK:	624.04
COBISS:	78654211
ISSN:	2076-3417
Št. ogledov:	3009
Št. prenosov:	115
Ocena:	0 (0 glasov)
Metapodatki:

Ostali podatki

Sekundarni jezik:	Slovenski jezik
Sekundarne ključne besede:	nekonstrukcijski predelni zidovi;protipotresno utrjevanje;steklena vlakna;izvenravninsko obnašanje;ciklično obremenjevanje;
Vrsta dela (COBISS):	Članek v reviji
Strani:	str. 1-24
Letnik:	ǂVol. ǂ11
Zvezek:	ǂiss. ǂ19
Čas izdaje:	2021
DOI:	10.3390/app11199098
ID:	13641430