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- Title
Stability coefficient of interlocking compressed earth block masonry under axial compression.
- Authors
Wang, Tianya; Wang, Yihong; Zeng, Guiyuan; Zhang, Jianxiong; Shi, Dan
- Abstract
To investigate the effects of the height–thickness ratio (β) on the mechanical properties and stability coefficients (--> φ s -->) of interlocking compressed earth block (ICEB) masonry members under axial compression, four groups of specimens with different β of 3.75, 6.75, 11.25, and 14.25 were tested, thereby assessing their stress process, failure mode, compressive strength, and in- and out-of-plane deformations. All the specimens underwent brittle failure under axial compression: the compressive strength was found to decrease in a range from 5.6% to 43% with increasing β, whereas the initial stacking defects and the in- and out-of-plane deformations increased. The specimens became less stable, and we noticed that the overall damage was caused by strength failure and not instability failures. Because the stability coefficient of ICEB-based masonry components cannot be calculated as those of more conventional brickwork, we combined our results with well-established masonry design guidelines and derived an interlocking improvement coefficient. Finally, we proposed a formula for calculating the axial compression stability coefficient of ICEB masonry that can provide a useful reference for subsequent research on ICEB walls.
- Subjects
MASONRY; RETAINING walls; FAILURE mode &; effects analysis; COMPRESSIVE strength; ARCHES
- Publication
Canadian Journal of Civil Engineering, 2021, Vol 48, Issue 4, p389
- ISSN
0315-1468
- Publication type
Article
- DOI
10.1139/cjce-2019-0281