Design approach of shear strengthened masonry: welded wire meshes, Reticulatus and cementitious plastering methods

Julian Thamboo, Marco Corradi, Keerthan Poologanathan

Research output: Contribution to journalArticlepeer-review

3 Citations (Scopus)

Abstract

Masonry often requires strengthening to withstand against extreme actions such as earthquakes, cyclones and flooding. Recently, new methods have been developed to strengthen masonry, such as fabric reinforced cementitious matrixes and fibre reinforced polymers. However, other strengthening systems such as welded wire meshing (WWM), reticulatus and plastering with cementitious matrixes/mortar (CP) have been also practiced to reinforce masonry, conversely no systematic design guidelines are available for these methods. In this study, an attempt has been made to establish rational design approaches to predict the shear resistance of WWM, reticulatus and CP methods. Three sets of experimental database have been developed for design verification. The effectiveness of these strengthening methods was appraised by comparing their structural performances. The available formulations to predict the shear resistance of unreinforced masonry (URM) and CP strengthened masonry were assessed against the established database, and suitable modifications were proposed to effectively account the contribution of cementitious matrix. A unified approach to estimate the shear strength was proposed based on the contribution of URM, CP and reinforcements. The design approach is shown to conservatively predict the shear strength of strengthened masonry.

Original languageEnglish
Pages (from-to)997-1016
Number of pages20
JournalBulletin of Earthquake Engineering
Volume21
Issue number2
Early online date11 Nov 2022
DOIs
Publication statusPublished - 1 Jan 2023
Externally publishedYes

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