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Computational Science, Engineering & Technology Series
ISSN 1759-3158 CSETS: 39
COMPUTER ANALYSIS AND DESIGN OF MASONRY STRUCTURES Edited by: J.W. Bull
Chapter 4
Wide Spaced Reinforced Masonry Shear Walls M. Dhanasekar, N.G. Shrive2, A.W. Page3 and W. Haider4
1Faculty of Built Environment and Engineering
Queensland University of Technology, Brisbane, Australia
M. Dhanasekar, N.G. Shrive, A.W. Page, W. Haider, "Wide Spaced Reinforced
Masonry Shear Walls", in J.W. Bull, (Editor), "Computer Analysis and Design of Masonry Structures", Saxe-Coburg Publications, Stirlingshire, UK, Chapter 4, pp 99-126, 2017.
Keywords: reinforced masonry, shear walls, explicit solver, finite elements.
Abstract
The design methods for single leaf wide spaced reinforced masonry walls are reviewed.
Such masonry consists of reinforcement spaced up to 2000 mm in the horizontal
direction and 3000 mm in the vertical direction with only those cores containing reinforcement
being grouted. This wall system typically uses low strength hollow blocks
(concrete or clay), containing quite low percentages of steel reinforcement and hence
is economic and ductile under out-of-plane flexure, making it popular in regions dominated
by cyclonic wind in Australia. Unfortunately the in-plane shear resistance of
the wide spaced reinforced masonry walls is not well understood and hence is governed
by challengeable design provisions in AS3700, the Australian masonry structures
standard [1]. Recent research findings with respect to the in-plane shear response of
this system, especially nonlinear finite element modelling methods are reviewed. An
efficient explicit method that effectively predicts the global behaviour of the walling
system that requires a few minutes of computation on a typical desktop workstation
is presented in detail. Experimental validation of the explicit finite element model is
also presented.
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