Study on Mechanical Properties of Prefabricated Lattice Beam Joint
The slope protection structure of the prefabricated lattice beam is one of the most widely used and studied systems in slope structure, with the connection between the lattice beam joint and the longitudinal and transverse beams being critical for structural performance and stability in engineering...
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| Language: | English |
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MDPI AG
2024-11-01
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| Series: | Buildings |
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| Online Access: | https://www.mdpi.com/2075-5309/14/12/3781 |
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| author | Ren-Guo Gu Yong-Liang Kang Wei Huang Zong-Xue Yan Ying-Guang Fang Ya-Fei Xu |
| author_facet | Ren-Guo Gu Yong-Liang Kang Wei Huang Zong-Xue Yan Ying-Guang Fang Ya-Fei Xu |
| author_sort | Ren-Guo Gu |
| collection | DOAJ |
| description | The slope protection structure of the prefabricated lattice beam is one of the most widely used and studied systems in slope structure, with the connection between the lattice beam joint and the longitudinal and transverse beams being critical for structural performance and stability in engineering applications. Because the prefabricated structure is weak in its structural integrity, it is necessary to study the influence of prefabricated lattice beam joints and the longitudinal and transverse beams on the overall mechanical properties of the structure. In this paper, one ordinary cast-in-place concrete beam and six prefabricated beams with different joint-connection modes are designed, and the influence of different connection modes on the bending capacity of the beams is accordingly explored. Moreover, the flexural capacity, bending stiffness change, ductility, and energy absorption capacity of the beams are analyzed through three-point bending test. The test results show that the connection mode at the joints could significantly affect the overall mechanical properties of the structure. By embedding holes in steel sleeves, filling cement mortar in the middle, and using steel plates with a thickness of 16 mm for anchoring treatment joints of end plates, the specimen beams are thus obtained with the same flexural capacity, ductility, and energy absorption capacity as ordinary cast-in-place concrete beams. This study provides valuable insights into optimizing connection methods for prefabricated beams, which can lead to improved structural performance and wider adoption of prefabricated structures in the construction industry. |
| format | Article |
| id | doaj-art-a964bb3129df40aea86acdf98de40b9c |
| institution | DOAJ |
| issn | 2075-5309 |
| language | English |
| publishDate | 2024-11-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Buildings |
| spelling | doaj-art-a964bb3129df40aea86acdf98de40b9c2025-08-20T02:53:33ZengMDPI AGBuildings2075-53092024-11-011412378110.3390/buildings14123781Study on Mechanical Properties of Prefabricated Lattice Beam JointRen-Guo Gu0Yong-Liang Kang1Wei Huang2Zong-Xue Yan3Ying-Guang Fang4Ya-Fei Xu5School of Civil Engineering and Transportation, South China University of Technology, Guangzhou 510641, ChinaGuangzhou Highway Engineering Group Co., Ltd., Guangzhou 510170, ChinaGuangzhou Highway Engineering Group Co., Ltd., Guangzhou 510170, ChinaGuangzhou Highway Engineering Group Co., Ltd., Guangzhou 510170, ChinaSchool of Civil Engineering and Transportation, South China University of Technology, Guangzhou 510641, ChinaSchool of Civil Engineering and Transportation, South China University of Technology, Guangzhou 510641, ChinaThe slope protection structure of the prefabricated lattice beam is one of the most widely used and studied systems in slope structure, with the connection between the lattice beam joint and the longitudinal and transverse beams being critical for structural performance and stability in engineering applications. Because the prefabricated structure is weak in its structural integrity, it is necessary to study the influence of prefabricated lattice beam joints and the longitudinal and transverse beams on the overall mechanical properties of the structure. In this paper, one ordinary cast-in-place concrete beam and six prefabricated beams with different joint-connection modes are designed, and the influence of different connection modes on the bending capacity of the beams is accordingly explored. Moreover, the flexural capacity, bending stiffness change, ductility, and energy absorption capacity of the beams are analyzed through three-point bending test. The test results show that the connection mode at the joints could significantly affect the overall mechanical properties of the structure. By embedding holes in steel sleeves, filling cement mortar in the middle, and using steel plates with a thickness of 16 mm for anchoring treatment joints of end plates, the specimen beams are thus obtained with the same flexural capacity, ductility, and energy absorption capacity as ordinary cast-in-place concrete beams. This study provides valuable insights into optimizing connection methods for prefabricated beams, which can lead to improved structural performance and wider adoption of prefabricated structures in the construction industry.https://www.mdpi.com/2075-5309/14/12/3781prefabricatedlattice beamthree-point bending testbeam jointductility |
| spellingShingle | Ren-Guo Gu Yong-Liang Kang Wei Huang Zong-Xue Yan Ying-Guang Fang Ya-Fei Xu Study on Mechanical Properties of Prefabricated Lattice Beam Joint Buildings prefabricated lattice beam three-point bending test beam joint ductility |
| title | Study on Mechanical Properties of Prefabricated Lattice Beam Joint |
| title_full | Study on Mechanical Properties of Prefabricated Lattice Beam Joint |
| title_fullStr | Study on Mechanical Properties of Prefabricated Lattice Beam Joint |
| title_full_unstemmed | Study on Mechanical Properties of Prefabricated Lattice Beam Joint |
| title_short | Study on Mechanical Properties of Prefabricated Lattice Beam Joint |
| title_sort | study on mechanical properties of prefabricated lattice beam joint |
| topic | prefabricated lattice beam three-point bending test beam joint ductility |
| url | https://www.mdpi.com/2075-5309/14/12/3781 |
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