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http://dx.doi.org/10.12989/eas.2018.14.5.449

Seismic performance of retrofitted URM walls with diagonal and vertical steel strips  

Darbhanzi, Abbas (College of Engineering, Vali-e-Asr University of Rafsanjan)
Marefat, Mohammad S. (School of Civil Engineering, College of Engineering, University of Tehran)
Khanmohammadi, Mohammad (School of Civil Engineering, College of Engineering, University of Tehran)
Moradimanesh, Amin (School of Civil Engineering, College of Engineering, University of Tehran)
Zare, Hamid (School of Civil Engineering, College of Engineering, University of Tehran)
Publication Information
Earthquakes and Structures / v.14, no.5, 2018 , pp. 449-458 More about this Journal
Abstract
Earthquakes have shown the vulnerability of unreinforced masonry (URM) structures. The aim of this research is to study a technique for in-plane seismic retrofitting of URM walls in which both diagonal and vertical steel strips are added to a single side of a URM wall. Specimens have been tested under quasi-static cyclic lateral load in combination with constant vertical load. The tests show that vertical and diagonal strips cause a significant increase in seismic capacity in terms of both strength (about 200%) and displacement at maximum (about 20%). Furthermore, this technique caused the failure modes of URM walls were influenced.
Keywords
seismic retrofit; clay brick; URM walls; vertical and diagonal steel strips; lateral strength and ductility;
Citations & Related Records
Times Cited By KSCI : 4  (Citation Analysis)
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