A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Experimental study on behavior of ferrocement retrofitted unconfined URM wall under cyclic loading
https://orcid.org/http://orcid.org/0000-0001-6421-1761
Earthquake is a regular phenomenon causing enormous damage in different corners of the world. A large number of masonry buildings in various countries, which contain unreinforced masonry (URM) walls are particularly at high risk. These structures are primarily designed to resist vertical load that makes them more susceptible to in-plane or out-of-plane shear forces resulting from lateral loads. Besides, shear resistance of these URM walls decreases due to the deterioration of mortar joint because of aging. Hence, retrofitting of these old buildings has become an important issue. Among several techniques, ferrocement retrofitting can be a low-cost technique in the context of the economic condition of different developing countries. This study aims at investigating the behavior of ferrocement retrofitted unconfined URM walls under both partially reversed cyclic loading and cyclic compression loading. Six 725 mm × 725 mm masonry wall units were prepared with bricks. To compare the effectiveness of ferrocement, two types (18 gauge and 20 gauge) of 12.5 mm × 12.5 mm square opening woven wire meshes were tested. Mix proportion of cement and sand for masonry mortar and ferrocement used were 1:4 and 1:2, respectively with 0.45 w/c ratio. The results showed that the ultimate load-carrying capacities of ferrocement retrofitted specimens were 35–58% and 27–46% greater than the reference specimen under partially reversed cyclic loading and cyclic compression, respectively. Deformations of ferrocement retrofitted specimens before failures were 43%-58% and 33%-46% greater than those of the reference specimens under partially reversed cyclic loading and cyclic compression, respectively.
Experimental study on behavior of ferrocement retrofitted unconfined URM wall under cyclic loading
https://orcid.org/http://orcid.org/0000-0001-6421-1761
Earthquake is a regular phenomenon causing enormous damage in different corners of the world. A large number of masonry buildings in various countries, which contain unreinforced masonry (URM) walls are particularly at high risk. These structures are primarily designed to resist vertical load that makes them more susceptible to in-plane or out-of-plane shear forces resulting from lateral loads. Besides, shear resistance of these URM walls decreases due to the deterioration of mortar joint because of aging. Hence, retrofitting of these old buildings has become an important issue. Among several techniques, ferrocement retrofitting can be a low-cost technique in the context of the economic condition of different developing countries. This study aims at investigating the behavior of ferrocement retrofitted unconfined URM walls under both partially reversed cyclic loading and cyclic compression loading. Six 725 mm × 725 mm masonry wall units were prepared with bricks. To compare the effectiveness of ferrocement, two types (18 gauge and 20 gauge) of 12.5 mm × 12.5 mm square opening woven wire meshes were tested. Mix proportion of cement and sand for masonry mortar and ferrocement used were 1:4 and 1:2, respectively with 0.45 w/c ratio. The results showed that the ultimate load-carrying capacities of ferrocement retrofitted specimens were 35–58% and 27–46% greater than the reference specimen under partially reversed cyclic loading and cyclic compression, respectively. Deformations of ferrocement retrofitted specimens before failures were 43%-58% and 33%-46% greater than those of the reference specimens under partially reversed cyclic loading and cyclic compression, respectively.
Experimental study on behavior of ferrocement retrofitted unconfined URM wall under cyclic loading
https://orcid.org/http://orcid.org/0000-0001-6421-1761
Earthquake is a regular phenomenon causing enormous damage in different corners of the world. A large number of masonry buildings in various countries, which contain unreinforced masonry (URM) walls are particularly at high risk. These structures are primarily designed to resist vertical load that makes them more susceptible to in-plane or out-of-plane shear forces resulting from lateral loads. Besides, shear resistance of these URM walls decreases due to the deterioration of mortar joint because of aging. Hence, retrofitting of these old buildings has become an important issue. Among several techniques, ferrocement retrofitting can be a low-cost technique in the context of the economic condition of different developing countries. This study aims at investigating the behavior of ferrocement retrofitted unconfined URM walls under both partially reversed cyclic loading and cyclic compression loading. Six 725 mm × 725 mm masonry wall units were prepared with bricks. To compare the effectiveness of ferrocement, two types (18 gauge and 20 gauge) of 12.5 mm × 12.5 mm square opening woven wire meshes were tested. Mix proportion of cement and sand for masonry mortar and ferrocement used were 1:4 and 1:2, respectively with 0.45 w/c ratio. The results showed that the ultimate load-carrying capacities of ferrocement retrofitted specimens were 35–58% and 27–46% greater than the reference specimen under partially reversed cyclic loading and cyclic compression, respectively. Deformations of ferrocement retrofitted specimens before failures were 43%-58% and 33%-46% greater than those of the reference specimens under partially reversed cyclic loading and cyclic compression, respectively.
Experimental study on behavior of ferrocement retrofitted unconfined URM wall under cyclic loading
Asian J Civ Eng
Asif, Md. Mahir (author) / Alam, Md. Zahidul (author) / Ahsan, Raquib (author)
Asian Journal of Civil Engineering ; 22 ; 1059-1074
2021-09-01
16 pages
Article (Journal)
Electronic Resource
English
Performance Analysis of Ferrocement Retrofitted Masonry Wall Units under Cyclic Loading
| BASE | 2018
Hysteretic Behavior of Ferrocement-Retrofitted Clay Tile Walls
| Online Contents | 2004
Hysteretic Behavior of Ferrocement-Retrofitted Clay Tile Walls
| British Library Online Contents | 2004