原文传递
Experimental Study on Innovative Π-Shaped Beam-to-Column Connections under Cyclic Loading
| 题名： | Experimental Study on Innovative Π-Shaped Beam-to-Column Connections under Cyclic Loading |
| 正文语种： | 英文 |
| 作者： | Jizhuo Huang1; Hande Lin2; Pingping Huang3; Zhibin Wang4 |
| 作者单位： | 1Professor, College of Civil Engineering, Fuzhou Univ., 2 Xue Yuan Rd., University Town, Fuzhou 350116, China; State Key Laboratory of Subtropical Building Science, South China Univ. of Technology,381 Wushan Rd., Tianhe District, Guangzhou 510641, China (corresponding author). 2Graduate Student, College of Civil Engineering, Fuzhou Univ.,2 Xue Yuan Rd., University Town, Fuzhou 350116, China. 3Graduate Student, College of Civil Engineering, Fuzhou Univ.,2 Xue Yuan Rd., University Town, Fuzhou 350116, China. 4Associate Professor, College of Civil Engineering, Fuzhou Univ.,2 Xue Yuan Rd., University Town, Fuzhou 350116, China. |
| 关键词： | Cyclic behavior; Connections; Slotted bolt holes; Rotation capacity; Ductility; Energy dissipation |
| 摘要： | An innovative type of bolted beam-to-column connection by means of a Π-shaped connector welded by two flanges, one web and one end-plate is put forward in this study. Besides standard bolt holes, short-slotted bolt holes are considered in the flanges and web of the connector for the Π-shaped bolted connections. An experimental investigation of six Π-shaped bolted connections with the parameters of slotted bolt-hole sizes and treatment methods of the faying surfaces between the Π-shaped connector and the beam and two comparative connections under cyclic load was undertaken to provide insight into the cyclic behavior of this joint type. The results demonstrate that the presented Π-shaped connections are characteristic of large plastic rotation, good ductility, and high energy dissipation, meeting the seismic design provisions for stiffness, resistance, rotation, and ductility. A slightly slotted size of the bolt holes in the connectors can greatly improve the seismic performance of connections in terms of the rotation capacity, ductility, and energy dissipation, and consequently prevent or reduce the risk of local damage progression in the beam flanges and web through the small movement allowed for the beam end. This can increase the postearthquake reparability of steel structures with such connections. Treatment methods of the surfaces just affect the slip resistance, the corresponding displacement, and therefore the ductility of connections. Observations of test connection specimens show that the Π-shaped bolted connections have multiple failure modes and can be viewed as a combination of end-plate and T-stub connections. Based on this, a reliable and conservative formula for prediction of rotation capacity of this joint type is proposed. |
| 出版年： | 2019 |
| 期刊名称： | Journal of Structural Engineering |
| 卷： | 145 |
| 期： | 5 |
| 页码： | 1-14 |
相关文献
- Experimental Study and Analysis on Rotational Behavior of Bamboo Scrimber Beam-to-Column Bolted Connections
- Experimental Investigation of Friction-Damped Self-Centering Prestressed Concrete Beam-Column Connections with Hidden Corbels
- Cyclic Testing of Glue-Laminated Beam-to-Column Connections
- Discussion of "Robustness of Beam-to-Column End-Plate Moment Connections with Stainless Steel Bolts Subjected to High Rates of Loading" by G. Culache, M. P. Byfield, N. S. Ferguson, and A. Tyas
- Seismic Performance of Joint between Timber–Concrete Composite Beams and Steel Column with Innovative Semirigid Connections: Experimental and Numerical Studies under Quasi-Static Cyclic Loading Conditions
- Postbuckling Shear Capacity of External Diaphragm Connections of CFST Structures
检索历史
应用推荐
