Title: Retrofitting a full-scale two-story hollow clay block masonry building by Steel Fiber Reinforced Mortar coating
Author(s): Lucchini, S.S.; Facconi, L.; Minelli, F.; Plizzari, G.A.
Publication: Symposium Paper
Appears on pages(s): 462-472
Keywords: Steel Fiber Reinforced Mortar; Mortar coating; Retrofitting; Hollow block masonry; Cyclic test; Full-scale masonry test.
The use of mortar coating reinforced only with randomly diffused steel fibers represents an
effective technique for seismic retrofitting of masonry buildings. The present work aims at
proving the effectiveness of that technique by testing a full-scale two-story hollow clay block
masonry building subjected to a quasi-static cyclic lateral loading. The experimental program
includes two tests involving the same building. The first test performed on the building
without coating is carried out to pre-damage masonry in order to simulate the effects of a
seismic action significant for ultimate conditions. The second test is performed to assess the
behavior of the pre-damaged building after retrofitting. The paper presents the main properties
and details of both the test building and the proposed retrofitting technique. As the test on the
retrofitted specimen is still ongoing, only the main results concerning the unstrengthened
building are reported and discussed.
To predict the response of the two experimental tests, 3D non-linear finite element
simulations have been carried out and presented in the last section of the paper. The latter
includes the comparison between the numerical prediction and the available experimental