Mechanical Characteristics of Steel Shear Keyed Joints in the Construction and Finished States
Joints that represent locations of discontinuity were the prominent factors affecting the overall behavior of precast segmental bridges. In this study, the steel shear key was designed, which was used to transmit the shear stress of the joints. To study the mechanical characteristics of the steel sh...
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| Format: | Article |
| Language: | English |
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Wiley
2021-01-01
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| Series: | Advances in Civil Engineering |
| Online Access: | http://dx.doi.org/10.1155/2021/7252122 |
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| author | Yu Zou Dong Xu |
| author_facet | Yu Zou Dong Xu |
| author_sort | Yu Zou |
| collection | DOAJ |
| description | Joints that represent locations of discontinuity were the prominent factors affecting the overall behavior of precast segmental bridges. In this study, the steel shear key was designed, which was used to transmit the shear stress of the joints. To study the mechanical characteristics of the steel shear keyed joints in the construction and finished states, direct shear experiments and numerical analysis were carried out. The experimental results showed that the steel shear keyed joints had a high bearing capacity and good ductility. Under the action of confining stress, the joints relied on the mechanical occlusion between the steel keys to transmit the shear forces. When the load-displacement curve entered the horizontal stage, it can still bore large relative deformation, and the bearing capacity did not decrease. In the construction state, the inelastic deformation of the steel shear key should be used to control the design value of the temporary load. In the finished state, the bearing capacity of joints should be controlled by the direct shear strength of the steel shear key, which can be calculated according to the shear formula. The shear strength of the material and size of the steel shear key are the main factors affecting the bearing capacity of steel shear keyed joints. |
| format | Article |
| id | doaj-art-61115c6706ed4d4a86972fa39691ea8e |
| institution | Kabale University |
| issn | 1687-8094 |
| language | English |
| publishDate | 2021-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Civil Engineering |
| spelling | doaj-art-61115c6706ed4d4a86972fa39691ea8e2025-02-03T01:21:45ZengWileyAdvances in Civil Engineering1687-80942021-01-01202110.1155/2021/7252122Mechanical Characteristics of Steel Shear Keyed Joints in the Construction and Finished StatesYu Zou0Dong Xu1College of Civil EngineeringCollege of Civil EngineeringJoints that represent locations of discontinuity were the prominent factors affecting the overall behavior of precast segmental bridges. In this study, the steel shear key was designed, which was used to transmit the shear stress of the joints. To study the mechanical characteristics of the steel shear keyed joints in the construction and finished states, direct shear experiments and numerical analysis were carried out. The experimental results showed that the steel shear keyed joints had a high bearing capacity and good ductility. Under the action of confining stress, the joints relied on the mechanical occlusion between the steel keys to transmit the shear forces. When the load-displacement curve entered the horizontal stage, it can still bore large relative deformation, and the bearing capacity did not decrease. In the construction state, the inelastic deformation of the steel shear key should be used to control the design value of the temporary load. In the finished state, the bearing capacity of joints should be controlled by the direct shear strength of the steel shear key, which can be calculated according to the shear formula. The shear strength of the material and size of the steel shear key are the main factors affecting the bearing capacity of steel shear keyed joints.http://dx.doi.org/10.1155/2021/7252122 |
| spellingShingle | Yu Zou Dong Xu Mechanical Characteristics of Steel Shear Keyed Joints in the Construction and Finished States Advances in Civil Engineering |
| title | Mechanical Characteristics of Steel Shear Keyed Joints in the Construction and Finished States |
| title_full | Mechanical Characteristics of Steel Shear Keyed Joints in the Construction and Finished States |
| title_fullStr | Mechanical Characteristics of Steel Shear Keyed Joints in the Construction and Finished States |
| title_full_unstemmed | Mechanical Characteristics of Steel Shear Keyed Joints in the Construction and Finished States |
| title_short | Mechanical Characteristics of Steel Shear Keyed Joints in the Construction and Finished States |
| title_sort | mechanical characteristics of steel shear keyed joints in the construction and finished states |
| url | http://dx.doi.org/10.1155/2021/7252122 |
| work_keys_str_mv | AT yuzou mechanicalcharacteristicsofsteelshearkeyedjointsintheconstructionandfinishedstates AT dongxu mechanicalcharacteristicsofsteelshearkeyedjointsintheconstructionandfinishedstates |