原文传递
Beam-to-CFT High-Strength Joints with External Diaphragm. II: Numerical Simulation of Joint Behavior
| 题名： | Beam-to-CFT High-Strength Joints with External Diaphragm. II: Numerical Simulation of Joint Behavior |
| 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; Finite element method; Metal and composite structures. |
| 摘要： | The paper presents the outcome of a finite-element numerical investigation program developed and carried out in connection to a set of experimental investigations performed on welded beam-to-column joints, with columns realized as concrete-filled tubes (CFT) with rectangular hollow sections (RHS). The current study was aimed to calibrate a set of numerical models, to conduct a parametric study, and to validate the proposed design procedure. Joint models were calibrated, and additional parameters were investigated numerically, such as: influence of the concrete core, influence of the axial force in the column, response of one-way and two-way joints. It was shown that (1) the influe nee of con crete core was proved to be low for the single sided RBS or CP joint assemblies, but significant corresponding to joints with strengthened beam, (2) the response of the joint assembly was not affected by the presence of the axial compression force in the column, and (3) the connection solution with external diaphragms was characterized by an adequate response considering one-way and two-way joints. The current study evidenced a good conception and design of the reduced beam section (RBS) and cover plate (CP) joints. In particular, the study proved the feasibility of using higher steel grades in columns and joint comp on ents, and the use of an external diaphragm for the transfer the loads from the beam to the side walls of the rectangular hollow section (RHS) steel tube. DOI: 10.1061/(ASCE)ST.1943-541X.0001693. © 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： | 04017002 |
相关文献
- Discussion of "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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