In-Plane Shear Resistance between the Rammed Earth Blocks with Simple Interventions: Experimentation and Finite Element Study
The paper presents experimental and numerical works to assess the in-plane shear characteristics of rammed earth (RE) structures in Bhutan. The material characterization works involve compressive and tensile splitting strength tests on extracted cylindrical core samples. The effects of the RE layer...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2020-03-01
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| Series: | Buildings |
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| Online Access: | https://www.mdpi.com/2075-5309/10/3/57 |
| _version_ | 1819092597433434112 |
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| author | Kshitij C. Shrestha Takayoshi Aoki Mitsuhiro Miyamoto Phuntsho Wangmo Pema |
| author_facet | Kshitij C. Shrestha Takayoshi Aoki Mitsuhiro Miyamoto Phuntsho Wangmo Pema |
| author_sort | Kshitij C. Shrestha |
| collection | DOAJ |
| description | The paper presents experimental and numerical works to assess the in-plane shear characteristics of rammed earth (RE) structures in Bhutan. The material characterization works involve compressive and tensile splitting strength tests on extracted cylindrical core samples. The effects of the RE layer thickness and drying period in the strength characteristics of the rammed earth is presented. The main experimental part reports in-plane shear tests on 3 test specimens, 1200 mm long, 1200 mm high, and 600 mm wide. The test matrix has unreinforced and reinforced specimens with variable RE layer thicknesses. For the reinforced RE specimen, the effectiveness of a simple intervention with insertion of reinforced concrete dowel at the RE block interface as a strengthening measure is discussed. Furthermore, corresponding finite element models were developed to verify the test observations. Both the experimental observations and numerical computations showed the effectiveness of proposed intervention technique in enhancing the shear strength and delaying the slip along the RE joint interface. The results showed that the shear strength of the reinforced specimen increased by 12.3% over the benchmark specimen. |
| first_indexed | 2024-12-21T22:58:09Z |
| format | Article |
| id | doaj.art-6152bfe2421545e1b7da950efce76c8b |
| institution | Directory Open Access Journal |
| issn | 2075-5309 |
| language | English |
| last_indexed | 2024-12-21T22:58:09Z |
| publishDate | 2020-03-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Buildings |
| spelling | doaj.art-6152bfe2421545e1b7da950efce76c8b2022-12-21T18:47:24ZengMDPI AGBuildings2075-53092020-03-011035710.3390/buildings10030057buildings10030057In-Plane Shear Resistance between the Rammed Earth Blocks with Simple Interventions: Experimentation and Finite Element StudyKshitij C. Shrestha0Takayoshi Aoki1Mitsuhiro Miyamoto2Phuntsho Wangmo3Pema4Graduate School of Design and Architecture, Nagoya City University, Nagoya 464-0083, JapanGraduate School of Design and Architecture, Nagoya City University, Nagoya 464-0083, JapanFaculty of Engineering and Design, Kagawa University, Takamatsu 761-0396, JapanDepartment of Culture, Ministry of Home and Cultural Affairs, Thimphu 133, BhutanDepartment of Culture, Ministry of Home and Cultural Affairs, Thimphu 133, BhutanThe paper presents experimental and numerical works to assess the in-plane shear characteristics of rammed earth (RE) structures in Bhutan. The material characterization works involve compressive and tensile splitting strength tests on extracted cylindrical core samples. The effects of the RE layer thickness and drying period in the strength characteristics of the rammed earth is presented. The main experimental part reports in-plane shear tests on 3 test specimens, 1200 mm long, 1200 mm high, and 600 mm wide. The test matrix has unreinforced and reinforced specimens with variable RE layer thicknesses. For the reinforced RE specimen, the effectiveness of a simple intervention with insertion of reinforced concrete dowel at the RE block interface as a strengthening measure is discussed. Furthermore, corresponding finite element models were developed to verify the test observations. Both the experimental observations and numerical computations showed the effectiveness of proposed intervention technique in enhancing the shear strength and delaying the slip along the RE joint interface. The results showed that the shear strength of the reinforced specimen increased by 12.3% over the benchmark specimen.https://www.mdpi.com/2075-5309/10/3/57sustainable buildingrammed earthin-plane shearfinite elementstrengtheningdowelbhutan |
| spellingShingle | Kshitij C. Shrestha Takayoshi Aoki Mitsuhiro Miyamoto Phuntsho Wangmo Pema In-Plane Shear Resistance between the Rammed Earth Blocks with Simple Interventions: Experimentation and Finite Element Study Buildings sustainable building rammed earth in-plane shear finite element strengthening dowel bhutan |
| title | In-Plane Shear Resistance between the Rammed Earth Blocks with Simple Interventions: Experimentation and Finite Element Study |
| title_full | In-Plane Shear Resistance between the Rammed Earth Blocks with Simple Interventions: Experimentation and Finite Element Study |
| title_fullStr | In-Plane Shear Resistance between the Rammed Earth Blocks with Simple Interventions: Experimentation and Finite Element Study |
| title_full_unstemmed | In-Plane Shear Resistance between the Rammed Earth Blocks with Simple Interventions: Experimentation and Finite Element Study |
| title_short | In-Plane Shear Resistance between the Rammed Earth Blocks with Simple Interventions: Experimentation and Finite Element Study |
| title_sort | in plane shear resistance between the rammed earth blocks with simple interventions experimentation and finite element study |
| topic | sustainable building rammed earth in-plane shear finite element strengthening dowel bhutan |
| url | https://www.mdpi.com/2075-5309/10/3/57 |
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