000019978 001__ 19978
000019978 005__ 20170118182349.0
000019978 04107 $$aeng
000019978 046__ $$k2017-01-09
000019978 100__ $$aIsmail, Najif
000019978 24500 $$aDiagonal Tension Testing of As-Built and Fabric Reinforced Cementitious Matrix Strengthened Masonry Panels

000019978 24630 $$n16.$$pProceedings of the 16th World Conference on Earthquake Engineering
000019978 260__ $$b
000019978 506__ $$arestricted
000019978 520__ $$2eng$$aReinforced concrete frames with infill masonry panels (IMPs) exhibit complex in-plane seismic behaviour, with IMPs contributing to the frame strength/stiffness while acting as shear bracing panels and undergoing damage. Amongst several options, one option to limit such earthquake damage to IMPs is the surface application of a polymer fabric-reinforced cementitious matrix (FRCM). Presented in this article are preliminary results from the first series of tests undertaken as part of an experimental program investigating the effectiveness of FRCM as a strengthening solution to limit shear damage in IMPs. The experimental program involved characterisation of constituent materials (i.e. testing of masonry units, masonry mortar, FRCM matrix) and the diagonal shear testing of as-built and FRCM strengthened test panels. A total of seven test panels were constructed using 150 mm thick hollow concrete masonry units, laid in a stack bond pattern with a 1:3 by mass cement-sand mortar. Experimental results of tested panels were analysed to evaluate their shear stress-strain response, ultimate shear strength, pseudo-ductility, and stiffness characteristics. The experimental results from FRCM strengthened test panels were then compared to those from as-built tested panel to quantify the performance improvement achieved using FRCM strengthening. The shear strength of FRCM strengthened test panels was 180-270% of that from corresponding asbuilt tested panel, whereas the failure mode changed from brittle collapse to a ductile gradual failure. Typical damage patterns observed in FRCM strengthened test panels included crushing at loaded corners and distributed narrow cracking along the loaded diagonal of the test panel.

000019978 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000019978 653__ $$adiagonal tension; fabric; masonry; infill; strengthening; earthquake.

000019978 7112_ $$a16th World Conference on Earthquake Engineering$$cSantiago (CL)$$d2017-01-09 / 2017-01-13$$gWCEE16
000019978 720__ $$aIsmail, Najif$$iNajmal, Amanullah$$iEl-Maaddawy, Tamer$$iKhattak, Nouman
000019978 8560_ $$ffischerc@itam.cas.cz
000019978 8564_ $$s572252$$uhttps://invenio.itam.cas.cz/record/19978/files/4863.pdf$$yOriginal version of the author's contribution as presented on USB, paper 4863.
000019978 962__ $$r16048
000019978 980__ $$aPAPER