Numerical analysis of grouted blockwork walls in axial compression

Soh, L. T., Morris, P., Dux, P. and Mullins, P. (2014) Numerical analysis of grouted blockwork walls in axial compression. Masonry International, 27 1: 17-26.

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Name Description MIMEType Size Downloads
Author Soh, L. T.
Morris, P.
Dux, P.
Mullins, P.
Title Numerical analysis of grouted blockwork walls in axial compression
Journal name Masonry International   Check publisher's open access policy
ISSN 0950-2289
Publication date 2014-01-01
Year available 2014
Sub-type Article (original research)
Volume 27
Issue 1
Start page 17
End page 26
Total pages 10
Place of publication Whyteleafe, Surrey, United Kingdom
Publisher British Masonry Society
Language eng
Formatted abstract
Several researchers have shown experimentally that grouted blockwork masonry walls under axial compression fail by separation of the face shell from the grout core, that is, by a splitting failure. This paper reports elastic finite element analyses conducted using the program LUSAS to identify the critical stress distribution leading to failure. The analyses show that splitting occurs as a result of the lateral horizontal tensile stresses that arise due to the different stiffnesses of the concrete block, grout and mortar comprising the blockwork. It is also shown that imperfections such as internal voids and cracks, and mortar intrusions into the grout increase these stresses. In addition, unrestrained vertical and horizontal reinforcement are shown to have no significant effect on the horizontal stresses that cause the splitting failure, although vertical reinforcement does increase the compressive load at which this failure occurs.
Keyword Blockwork
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: School of Civil Engineering Publications
Official 2015 Collection
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Created: Tue, 05 Aug 2014, 12:28:59 EST by System User on behalf of School of Civil Engineering