原文传递
A Novel Shear Strength Prediction Approach for Headed Shear Studs Embedded in Ultrahigh-Performance Concrete
| 题名： | A Novel Shear Strength Prediction Approach for Headed Shear Studs Embedded in Ultrahigh-Performance Concrete |
| 正文语种： | eng |
| 作者： | Hu, Yuqing;Zhong, Rui;Meloni, Marco;Wang, Jingquan |
| 作者单位： | Southeast Univ Sch Civil Engn Nanjing 211189 Peoples R China;Southeast Univ Sch Civil Engn Key Lab Concrete & Prestressed Concrete Struct Minist Educ Nanjing 211189 Peoples R China;Southeast Univ Sch Civil Engn Nanjing 211189 Peoples R China;Southeast Univ Sch Civil Engn Nanjing 211189 Peoples R China |
| 关键词： | Shear strength;Headed stud;Ultrahigh-performance concrete (UHPC);Wedge block model;Push-out test |
| 摘要： | Due to the excellent mechanical properties of ultrahigh-performance concrete (UHPC), the shear strength of stud-UHPC composite connections is significantly enhanced. Nevertheless, the underlying mechanism remains not fully understood. This study discusses the process of failure of shear studs embedded in UHPC and develops a concrete wedge block model in an attempt to explain such improvement. The procedure to determine the key characteristics of the wedge block is established. Based on the wedge block model, a modified compression-dispersion model and plastic deformation theory were utilized to derive a shear strength prediction formula for stud-UHPC composite connections. Push-out test results combined with relevant data collected from available literature were used to validate the proposed formula. The deviation of predicted shear strength from experimental results was typically within 25%. The contribution from the UHPC wedge block to the shear strength of the stud-UHPC composite connection was found to be approximately 13%. |
| 出版年： | 2021 |
| 期刊名称： | Journal of structural engineering |
| 卷： | 147 |
| 期： | 11 |
相关文献
- Shear Behavior of Headed Stud Connectors at Low Temperatures Relevant to the Arctic Environment
- Analytical Model for Calculating Shear Capacity of NSC Beams Strengthened by UHPC Lateral Layers
- Behavior and Strength of Headed Stud-SFRCC Shear Connection. I: Experimental Study
- Behavior and Strength of Headed Stud-SFRCC Shear Connection. II: Strength Evaluation
- Development and Performance of Innovative Steel Wedge Block–Crossed Inclined Stud–UHPC Connections for Composite Bridge
- Behavior of CFSC-Encased Shear Connectors in Steel-Concrete Joints: Push-Out Tests
检索历史
应用推荐
