Seismic retrofitting of unreinforced masonry structures with TRM

Title: Seismic retrofitting of unreinforced masonry structures with TRM
Author(s): C. G. Papanicolaou, T. C. Triantafillou, K. Karlos, M. Papathanasiou
Paper category : conference
Book title: ICTRC'2006 - 1st International RILEM Conference on Textile Reinforced Concrete
Editor(s): J. Hegger, W. Brameshuber and N. Will
Print-ISBN: 2-912143-97-7
e-ISBN: 2351580087
Publisher: RILEM Publications SARL
Publication year: 2006
Pages: 341 - 350
Total Pages: 10
Nb references: 6
Language: English

Abstract: Textile reinforced mortar (TRM) is investigated in this study as a new method for seismic retrofitting of unreinforced masonry (URM) walls through jacketing. In this study, TRM jackets consist of textile meshes made of carbon fiber rovings in two orthogonal directions and mortars – serving as binders – containing polymeric additives. A comprehensive experimental program was carried out on unreinforced masonry wall specimens subjected to cyclic loading which induced in-plane flexure combined with axial force, out-of-plane flexure and in-plane shear with axial force. The walls were strengthened using two-sided jacketing made of TRM materials. The main parameter under investigation was the number of textile layers, but also comparisons were made on the response of TRM-strengthened walls and identical specimens strengthened with FRP (fiber-reinforced polymer) jackets. The results were obtained in terms of load-displacement diagrams as well as stiffness and cumulative energy plots as a function of the loading cycles. By comparing the response of TRM-strengthened specimens with that of control (unreinforced) specimens and FRP-strengthened specimens, it was concluded that TRM jacketing is an extremely effective and promising seismic retrofitting measure for unreinforced masonry.

Online publication: 2006-06-02
Publication type : full_text
Public price (Euros): 0.00
doi: 10.1617/2351580087.033