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| Nonlinear numerical simulation and parameter analysis of a new type of outsourcing enhanced hybrid joint |
| Received:July 19, 2021 Revised:November 11, 2021 |
| View Full Text View/Add Comment Download reader |
| DOI：10.7511/jslx20210719001 |
| KeyWord:RC frame-steel structure adding storey hybrid structure new outsourcing enhanced joint hybrid joint energy dissipation capacity seismic performance |
| Author | Institution |
| 潘秀珍 |
西安理工大学 土木建筑工程学院, 西安 |
| 高欢 |
西安理工大学 土木建筑工程学院, 西安 |
| 阿卜来则孜·奥斯曼江 |
西安理工大学 土木建筑工程学院, 西安 |
| 李慎 |
西安理工大学 土木建筑工程学院, 西安 |
| 梁刚 |
西安理工大学 土木建筑工程学院, 西安 |
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| Abstract: |
| The paper uses finite element software ABAQUS to establish a new type of outsourced enhanced hybrid joint model.On the basis of validating the correctness of the model,a nonlinear analysis under quasi-static load is performed.An in-depth study of the mechanical performance and failure mechanism of each loading stage is carried out,and the impact of relevant parameters on the seismic performance of the joints is analyzed.The results show that the final failure form of the new type of joints is the plastic hinge failure at the beam end.The plastic hinge is far away from the core area of the joint due to the embedding function of outsourcing concrete and enlarged wrapped foot,which can effectively protect the core area of the joint and the continuity of force transmission path.The hysteresis loop is relatively full,with good energy dissipation capacity and plastic deformation capacity.The initial stiffness and ultimate bearing capacity of the joints can be improved by appropriately increasing the elevation height and horizontal length of the wrapped foot.According to the research results of related parameters,a reasonable range of design suggestions is given to provide references for engineering design. |