The Effect of Stiffened Floor and Roof Diaphragms on the Experimental Seismic Response of a Full-Scale Unreinforced Stone Masonry Building

Authors:Senaldi, Ilaria Magenes, Guido Penna, Andrea Galasco, Alessandro Rota, Maria

Source:

Volume:18

DOI:10.1080/13632469.2013.876946

Published:2014

Document Type:Article

Abstract:An extensive experimental program was carried out at EUCENTRE, within a research project on the evaluation and reduction of the seismic vulnerability of stone masonry structures. The main part of the experimental program has been devoted to the shaking table tests on three full-scale, two-story, single-room prototype buildings made of undressed double-leaf stone masonry. The first building tested was representative of existing unreinforced stone masonry structures with flexible wooden diaphragms, without any specific anti-seismic design nor detailing. In the second and third buildings, strengthening interventions were simulated on structures theoretically identical to the first one, improving wall-to-floor and wall-to-roof connections and increasing diaphragm stiffness. In particular, in the third specimen, steel and r.c. ring beams were used to improve the diaphragm connection to the walls and collaborating r.c. slab and multi-layer plywood panels were used to stiffen floor and roof diaphragms, respectively. This article describes the strengthening interventions applied to the third building prototype and presents the experimental results obtained during the shaking table tests. The results obtained permitted the calibration of a macroelement model representative of the nonlinear behavior of the structure.

Author Information

Corresponding Author:Penna, A (通讯作者)，Univ Pavia, Dept Civil Engn & Architecture, Via Ferrata 3, I-27100 Pavia, Italy.

Reprint Address:Penna, A (通讯作者)，Univ Pavia, Dept Civil Engn & Architecture, Via Ferrata 3, I-27100 Pavia, Italy.

Addresses:[Senaldi, Ilaria; Magenes, Guido; Penna, Andrea; Galasco, Alessandro] Univ Pavia, Dept Civil Engn & Architecture, I-27100 Pavia, Italy; [Magenes, Guido; Penna, Andrea; Galasco, Alessandro] EUCTR, I-27100 Pavia, Italy; [Rota, Maria] European Ctr Training & Res Earthquake Engn EUCTR, Pavia, Italy

E-mail Addresses:andrea.penna@unipv.it

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