Retrofitting of a Historical Masonry Building Using RC Shear Wall and Externally Bonded FRP System

Author(s): Padalu Pravin Kumar Venkat Rao, Yogendra Singh, Umesh Sharma, Sreekanta Das and Devavrata Singh
Paper category: Proceedings
Book title: Proceeding of the 71st RILEM Annual Week & ICACMS 2017
Editor(s): Manu Santhanam, Ravindra Gettu, Radhakrishna G. Pillai, Sunitha K. Nayar
ISBN:978-2-35158-195-7, 978-2-35158-190-2 (Set)
e-ISBN: 978-2-35158-191-9
Publisher: RILEM Publications SARL
Publication year: 2017
Pages: 607-616
Total Pages: 10
Language : English

Abstract: Masonry buildings share a large percentage of the current building stock in most parts of the world. The use of unreinforced masonry (URM) for load bearing walls in a building is a common practice. URM walls are very much prone to failure, when subjected to seismic in- plane and out-of-plane deformations. The in-plane behaviour of URM walls is crucial, as it provides the primary load path for transfer of seismic loads. However, URM has very low tensile strength and hence the URM walls are highly vulnerable to out-of-plane flexure. This paper presents a seismic evaluation of historical URM building at component level. It has been observed from the pier analysis that majority of the piers are unsafe in in-plane and out- of-plane shear and flexure. The present building being a historical monument, strengthening options were selected in such a way that the exterior façade/walls are not disturbed, as well as the strength and stability should also be greatly increased. After strengthening using two retrofitting interventions namely reinforced concrete (RC) shear wall and fiber reinforced polymer (FRP), the capacity has been largely enhanced. The paper also provides an overview of the ACI 440.7R design procedure for in-plane and out-of-plane strengthening of URM walls with externally bonded FRP system.

Online publication :2017
Publication type :full_text
Public price (Euros) : 0.00

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