Seismic Behaviour of Hybrid Precast Shear Walls with Partially Connected Vertically Distributed Reinforcements
This paper presents a joint mode for a vertical grouting sleeve and a partially distributed reinforced composite connection. The seismic performance of four hybrids precast shear walls with a shear span ratio of 1.83, an axial compression ratio of 0.20, and partially connected vertically distributed...
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| Format: | Article |
| Language: | English |
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Wiley
2022-01-01
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| Series: | Advances in Civil Engineering |
| Online Access: | http://dx.doi.org/10.1155/2022/8565125 |
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| author | Henglin Lv Yuanzhou Wu Xiongshi Hu Cancan Huang Kefang Liu |
| author_facet | Henglin Lv Yuanzhou Wu Xiongshi Hu Cancan Huang Kefang Liu |
| author_sort | Henglin Lv |
| collection | DOAJ |
| description | This paper presents a joint mode for a vertical grouting sleeve and a partially distributed reinforced composite connection. The seismic performance of four hybrids precast shear walls with a shear span ratio of 1.83, an axial compression ratio of 0.20, and partially connected vertically distributed rebar was studied by pseudo-static tests. The connection ratios of the reinforced concrete with a vertical distribution were 100%, 67%, 50%, and 33% and were compared with cast-in-place shear walls. It was found that both the precast and cast-in-place specimens demonstrated bending and shear failure modes. Both ends of the mortar layer were cracked under compression, and steel connection failure occurred under the ultimate load. The load-displacement hysteresis curve was bow-shaped and relatively full; the yield load increased from 11.4 to 16.6, and the peak load increased from 4.2 to 6.8 compared with those of the cast-in-situ specimen. The strength degradation performance of the precast specimen was slightly weaker than that of the cast-in-place specimen. The ductility coefficient of the precast specimens was approximately 4, and the ultimate displacement angle was between 1/30 and 1/32, which was larger than the limit value of elastic-plastic interlayer displacement of shear wall structures required by the code. The reduction in the number of vertically distributed rebar connections led to a decrease in the bearing capacity, stiffness, ductility, and energy dissipation, but the impact was very small. |
| format | Article |
| id | doaj-art-70c2e13e925a4a43907c86b4719faaea |
| institution | Kabale University |
| issn | 1687-8094 |
| language | English |
| publishDate | 2022-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Civil Engineering |
| spelling | doaj-art-70c2e13e925a4a43907c86b4719faaea2025-08-20T03:33:57ZengWileyAdvances in Civil Engineering1687-80942022-01-01202210.1155/2022/8565125Seismic Behaviour of Hybrid Precast Shear Walls with Partially Connected Vertically Distributed ReinforcementsHenglin Lv0Yuanzhou Wu1Xiongshi Hu2Cancan Huang3Kefang Liu4Jiangsu Key Laboratory of Environment Impact and Structure Safety in EngineeringJiangsu Key Laboratory of Environment Impact and Structure Safety in EngineeringXuzhou Housing Expropriation and Property Security Management CentreSchool of Mechanics and Civil EngineeringXuzhou Construction Engineering Testing Centre Co., Ltd.This paper presents a joint mode for a vertical grouting sleeve and a partially distributed reinforced composite connection. The seismic performance of four hybrids precast shear walls with a shear span ratio of 1.83, an axial compression ratio of 0.20, and partially connected vertically distributed rebar was studied by pseudo-static tests. The connection ratios of the reinforced concrete with a vertical distribution were 100%, 67%, 50%, and 33% and were compared with cast-in-place shear walls. It was found that both the precast and cast-in-place specimens demonstrated bending and shear failure modes. Both ends of the mortar layer were cracked under compression, and steel connection failure occurred under the ultimate load. The load-displacement hysteresis curve was bow-shaped and relatively full; the yield load increased from 11.4 to 16.6, and the peak load increased from 4.2 to 6.8 compared with those of the cast-in-situ specimen. The strength degradation performance of the precast specimen was slightly weaker than that of the cast-in-place specimen. The ductility coefficient of the precast specimens was approximately 4, and the ultimate displacement angle was between 1/30 and 1/32, which was larger than the limit value of elastic-plastic interlayer displacement of shear wall structures required by the code. The reduction in the number of vertically distributed rebar connections led to a decrease in the bearing capacity, stiffness, ductility, and energy dissipation, but the impact was very small.http://dx.doi.org/10.1155/2022/8565125 |
| spellingShingle | Henglin Lv Yuanzhou Wu Xiongshi Hu Cancan Huang Kefang Liu Seismic Behaviour of Hybrid Precast Shear Walls with Partially Connected Vertically Distributed Reinforcements Advances in Civil Engineering |
| title | Seismic Behaviour of Hybrid Precast Shear Walls with Partially Connected Vertically Distributed Reinforcements |
| title_full | Seismic Behaviour of Hybrid Precast Shear Walls with Partially Connected Vertically Distributed Reinforcements |
| title_fullStr | Seismic Behaviour of Hybrid Precast Shear Walls with Partially Connected Vertically Distributed Reinforcements |
| title_full_unstemmed | Seismic Behaviour of Hybrid Precast Shear Walls with Partially Connected Vertically Distributed Reinforcements |
| title_short | Seismic Behaviour of Hybrid Precast Shear Walls with Partially Connected Vertically Distributed Reinforcements |
| title_sort | seismic behaviour of hybrid precast shear walls with partially connected vertically distributed reinforcements |
| url | http://dx.doi.org/10.1155/2022/8565125 |
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