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In-plane behaviour of rammed earth under cyclic loading: Experimental testing and finite element modelling
RISE, SP – Sveriges Tekniska Forskningsinstitut, CBI Betonginstitutet AB, Betong & Berg.
2016 (English)In: Engineering structures, ISSN 0141-0296, E-ISSN 1873-7323, Vol. 125, 144-152 p.Article in journal (Refereed) Published
Abstract [en]

The purpose of this paper is to numerically simulate the in-plane behaviour of rammed earth walls under cyclic shear-compression tests. The experimental testing allowed obtaining the maximum horizontal loads, the displacement capacity and the level of non-linear behaviour of the respective load-displacement relationships as well as the failure modes. The calibration of the numerical model (finite element method) was carried out based on the experimental results. Within this framework, a micro-modelling approach was considered. The behaviour of the rammed earth material was simulated using a total strain rotating crack model. A Mohr-Coulomb failure criterion was used to reproduce the behaviour of the interfaces between the layers. Although the numerical results achieved a satisfactory agreement with the experimental results a sensitivity analysis of the parameters involved was performed. The sensitivity analysis aimed at determining which parameters of the model have a significant impact in the model's results. As expected the sensitivity analysis pointed out that the sliding failure occurrence is mainly influenced by two parameters of the interface elements: the interface tensile strength fit and the friction angle φ. Moreover the cohesion c and the layers thickness showed a limited effect on the shear behaviour. It should be noted that the results mentioned above are related to the cases where a significant level of vertical compressive stress σ is employed.

Place, publisher, year, edition, pages
Elsevier, 2016. Vol. 125, 144-152 p.
Keyword [en]
Cyclic shear-compression tests, Finite element modelling, In-plane loads, Pseudo-dynamic tests, Rammed earth, Shear behaviour, Compression testing, Load testing, Numerical methods, Sensitivity analysis, Shear flow, Tensile strength, Walls (structural partitions), Cyclic shear, Finite element method
National Category
Applied Mechanics Building Technologies
Identifiers
URN: urn:nbn:se:ri:diva-27599DOI: 10.1016/j.engstruct.2016.07.010Scopus ID: 2-s2.0-84989836635OAI: oai:DiVA.org:ri-27599DiVA: diva2:1059695
Available from: 2016-12-22 Created: 2016-12-21 Last updated: 2017-01-09Bibliographically approved

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CiteExportLink to record
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Cite
Citation style
  • apa
  • harvard1
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More styles
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  • fi-FI
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