RESEARCH ARTICLE


Experimental Investigation of Masonry Infilled R/C Frames



K.C. Stylianidis*
Department of Civil Engineering, Aristotle University of Thessaloniki, PO BOX 482, 54124, Greece.


Article Metrics

CrossRef Citations:
38
Total Statistics:

Full-Text HTML Views: 671
Abstract HTML Views: 1987
PDF Downloads: 903
Total Views/Downloads: 3561
Unique Statistics:

Full-Text HTML Views: 358
Abstract HTML Views: 1031
PDF Downloads: 629
Total Views/Downloads: 2018



Creative Commons License
© Stylianidis et al.; Licensee Bentham Open

open-access license: This is an open access article distributed under the terms of the Creative Commons Attribution 4.0 International Public License (CC-BY 4.0), a copy of which is available at: https://creativecommons.org/licenses/by/4.0/legalcode. This license permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

Correspondence: * Address correspondence to this author at the Department of Civil Engineering, Aristotle University of Thessaloniki, PO BOX 482, 54124, Greece.


Abstract

Although it is well documented that infills significantly affect the dynamic characteristics and the seismic response of the bare basic structural system, codes are reluctant to encourage consideration of infills as main structural elements, mainly due to structural uncertainties and computational complexities. Part of the uncertainties are due to the very many parameters affecting the behavior of the system, such as infill materials, reinforcing of infills, connection to the surrounding frame, geometry, relative stiffness and strength, local construction techniques etc. In the present paper three successive experimental programs, conducted at the R/C and Masonry Structures Laboratory of the Aristotle University, are described, commented and discussed. All of them refer to single-storey one-bay 1:3 scale R/C moment resisting frames. The first program consisted of 18 specimens, 2 bare and 16 unreinforced masonry (URM) infilled. The second program was an extension and a supplement of the previous one. It consisted of 20 more specimens, 6 bare and 14 URM infilled. The third program was directed towards the investigation of quick and low cost strengthening methods of R/C frames damaged by earthquakes, using several infill techniques. For this purpose 10 of the damaged specimens of the first program were repaired and strengthened.

Keywords: Ductility, Ductility, experimental results.