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Beam-to-CFT High-Strength Joints with External Diaphragm. I: Design and Experimental Validation
| 题名： | Beam-to-CFT High-Strength Joints with External Diaphragm. I: Design and Experimental Validation |
| 正文语种： | 英文 |
| 作者： | Cristian Vulcu; Aurel Stratan; Adrian Ciutina;Dan Dubina |
| 作者单位： | Dept, of Steel Structures and Structural Mechanics, Politehnica Univ, of Timisoara |
| 关键词： | Dual-steel solution; High-strength steel; Concrete filled tubes; Welded beam-to-column joints; Metal and composite structures. |
| 摘要： | The paper presents the outcomes of an experimental program developed and carried out with the aim of characterizing the behav-ior of two types of moment-resisting joints in multistory frames of concrete-filled high-strength steel rectangular hollow section (RHS) columns and mild carbon steel beams. The paper describes the design approach and displays the specific detailing for the two joint typologies: with reduced beam section (RBS) and with cover plates (CP). In spite of the various past and recent studies which were focused on the evaluation of full-strength welded beam-to-concrete-filled-tube (CFT) column joints, particular design procedures are missing at the European level. The objectives of the current research were to (1) development a design procedure for welded beam-to-CF-RHS joints, (2) experimental validation of the of the design procedure, and (3) assessment of the seismic performance. The monotonic and cyclic tests evidenced a good conception and design of the RBS and CP joints. In particular, the current study proved the feasibility of using higher steel grades in columns and joint components, and the use of an external diaphragm for the transfer the loads from the beam to the side walls of the RHS steel tube. The seismic performance of the joints was proved adequate, the joints sustaining rotation capacities larger than the 40 mrad at the significant damage performance level. DOI: 10.106l/(ASCE)ST.1943-541X.0001709. © 2017 American Society of Civil Engineers. |
| 出版日期： | 2017.05 |
| 出版年： | 2017 |
| 期刊名称： | Journal of Structural Engineering |
| 卷： | Vol.143 |
| 期： | NO.05 |
| 页码： | 04017001 |
相关文献
- Closure to "Beam-to-CFT High-Strength Joints with External Diaphragm. II: Numerical Simulation of Joint Behavior" by Cristian Vulcu, Aurel Stratan, Adrian Ciutina, and Dan Dubina
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