Cyclic behavior of beams rehabilitated by reinforced concrete layers

2021 ◽  
Author(s):  
Sabahattin Aykaç ◽  
Eray Özbek ◽  
Ali Tugrul Tankut
Keyword(s):  
Reinforced Concrete ◽  
Cyclic Behavior

Experiment Study on Cyclic Behavior of Concrete Filled Steel Tube (CFST) Column-Reinforced Concrete (RC) Beam Connections

2009 ◽  
Vol 417-418 ◽  
pp. 833-836 ◽  
Author(s):  
Qing Xiang Wang ◽  
Shi Run Liu
Keyword(s):  
Reinforced Concrete ◽  
Tube Wall ◽  
Plastic Hinge ◽  
Steel Tube ◽  
Reinforced Concrete Beams ◽  
Cyclic Behavior ◽  
Concrete Core ◽  
Concrete Filled Steel Tube ◽  
Steel Bars ◽  
Moment Resisting

The test results of six connections under cyclic loading are presented in the paper. Each test specimen was properly designed to model the interior joint of a moment resisting frame, and was identically comprised of three parts that including the circular concrete filled steel tube columns, the reinforced concrete beams, and the short fabricated connection stubs. Energy dissipation was designed to occur in the beams during a severe earthquake. Steel bars which were embedded into concrete core and welded to the connection stubs, were used to transfer the force distributed by the reinforcing bars of concrete beam to the concrete core. The results indicated that the embedded steel bars were very efficient in eliminating the stress concentration on the tube wall and there was no visible deformation occurred on the tube wall until the collapse of the specimen. Furthermore, the connection of each specimen had enough capacity and thus the plastic hinge appeared in the beams. As results, the ductility of this new type structure directly depended on the RC beams.

scholarly journals Cyclic behavior of ultra-high performance fiber reinforced concrete beam-column joint

2018 ◽  
Vol 20 (1) ◽  
pp. 348-360 ◽  
Author(s):  
Patricia A. Sarmiento ◽  
Benjamín Torres ◽  
Daniel M. Ruiz ◽  
Yezid A. Alvarado ◽  
Isabel Gasch ◽  
...  
Keyword(s):  
Reinforced Concrete ◽  
High Performance ◽  
Concrete Beam ◽  
Reinforced Concrete Beam ◽  
Fiber Reinforced Concrete ◽  
Cyclic Behavior ◽  
Fiber Reinforced ◽  
High Performance Fiber ◽  
Column Joint

Simplified method for modeling reinforced concrete column–steel beam connections with tube plate

2020 ◽  
Vol 23 (11) ◽  
pp. 2292-2304
Author(s):  
Rahman Jafari ◽  
Nader KA Attari ◽  
Ali Nikkhoo ◽  
Saeid Alizadeh
Keyword(s):  
Reinforced Concrete ◽  
Numerical Study ◽  
Load Cycle ◽  
Cyclic Behavior ◽  
Steel Beam ◽  
Concrete Column ◽  
Tube Plate ◽  
Initial Stiffness ◽  
Reinforced Concrete Column ◽  
Proposed Model

In this article, the cyclic behavior of reinforced concrete column–steel beam connections is investigated. In this research, an experimental and numerical study is conducted on the performance assessment of the through-beam connections with two detailing. The model details consist of the tube plate and steel doubler plate for the joints. The results show that the steel doubler plate increases the yielding capacity and initial stiffness of the connection but has no effect on the maximum capacity of the connection. Results show that using tube plate alone could have a good performance and there is no need for doubler plates. Furthermore, in order to model this type of connection with tube plate, modified model based on the Cordova’s proposed model is presented, and the load-cycle repetition on the connection at both specimens is simulated utilizing the OpenSees software by taking into account the bearing distortions and joint shear, and the obtained results are verified with the experimental ones as well.

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