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

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

Abstract

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.

Keywords

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;

Data

Language:	English
Year of publishing:	2021
Typology:	1.01 - Original Scientific Article
Organization:	UL FGG - Faculty of Civil and Geodetic Engineering
UDC:	624.04
COBISS:	78654211
ISSN:	2076-3417
Views:	3009
Downloads:	115
Average score:	0 (0 votes)
Metadata:

Other data

Secondary language:	Slovenian
Secondary keywords:	nekonstrukcijski predelni zidovi;protipotresno utrjevanje;steklena vlakna;izvenravninsko obnašanje;ciklično obremenjevanje;
Type (COBISS):	Article
Pages:	str. 1-24
Volume:	ǂVol. ǂ11
Issue:	ǂiss. ǂ19
Chronology:	2021
DOI:	10.3390/app11199098
ID:	13641430