Seismic behaviour of post-tensioned precast concrete beam–column connections

2021 ◽  
pp. 1-15
Author(s):  
Jin-Ha Hwang ◽  
Seung-Ho Choi ◽  
Deuck Hang Lee ◽  
Kang Su Kim ◽  
Oh-Sung Kwon
Keyword(s):  
Concrete Beam ◽  
Precast Concrete ◽  
Seismic Behaviour ◽  
Post Tensioned

Seismic Behaviour of Precast Reinforced Concrete Beam-Column Connections: A Literature Review

2013 ◽  
Vol 343 ◽  
pp. 9-13 ◽  
Author(s):  
P. Poluraju ◽  
G. Appa Rao
Keyword(s):  
Concrete Beam ◽  
Precast Concrete ◽  
Reinforced Concrete Beam ◽  
Structural Systems ◽  
Review Of Literature ◽  
Recent Past ◽  
Seismic Behaviour ◽  
Comprehensive Review ◽  
Moderate Seismicity ◽  
Precast Construction

Precast construction is gaining importance during recent past. Most of the studies reported on precast beam-column joints are to select the appropriate connections to be adopted particularly for regions of low to moderate seismicity. This paper reports on a comprehensive review of literature on the investigations carried out to analyze and evaluate the behaviour of precast concrete structural systems assembled with typical connections or joints under simulated earthquake loading. The seismic performance of precast concrete structure very much depends on the ductility of the joints framed by precast beams and columns. It has been understood that (1) moment resistance beam-column connection and (2) ductile connectors seems to be the most widely used in the precast construction in seismic regions. Further, refinement and research could be carried out in order to optimize such connections to be recommended in low seismicity regions.

Cyclic loading test on a locally post-tensioned precast concrete beam–column connection

2019 ◽  
Vol 22 (12) ◽  
pp. 2699-2711 ◽  
Author(s):  
Dongzhi Guan ◽  
Hui Yang ◽  
Dan Ju ◽  
Zhengxing Guo ◽  
Sen Yang
Keyword(s):  
Seismic Performance ◽  
Concrete Beam ◽  
Precast Concrete ◽  
High Strength ◽  
Loading Test ◽  
Weak Beam ◽  
Rapid Construction ◽  
Structural Details ◽  
Strut And Tie Model ◽  
Post Tensioned

A novel precast concrete beam–column connection locally post-tensioned using arc-shaped prestressing bars was proposed for satisfactory seismic performance and rapid construction. Three full-scale cruciform specimens, including one monolithic reference specimen, were tested under reversal cyclic loadings to evaluate the seismic behaviours. Grade 630 steel rods and high-strength deformed steel rebars were used for the arc-shaped prestressing bars in the precast specimens. The results show that the proposed precast connection presents an acceptable seismic performance and that the structural details should be ameliorated to improve the energy dissipation capacity. The design philosophy of strong column-weak beam is applicable to the new precast system. Finally, a strut-and-tie model was developed to investigate the force transfer mechanism of the novel precast connection.

Reversed Cyclic Behavior of Post-Tensioned Precast Concrete Beam-Column Connections with Unbonded Tendons

2018 ◽  
Vol 30 (6) ◽  
pp. 657-664
Author(s):  
Jin-Ha Hwang ◽  
Seung-Ho Choi ◽  
Jae-Hyun Kim ◽  
Kang Su Kim ◽  
n-Taek Woo
Keyword(s):  
Concrete Beam ◽  
Precast Concrete ◽  
Cyclic Behavior ◽  
Unbonded Tendons ◽  
Reversed Cyclic ◽  
Post Tensioned

Comparing the Seismic Performance of Beam-Column Joints with and without SFRC when Subjected to Cyclic Loading

2012 ◽  
Vol 626 ◽  
pp. 85-89 ◽  
Author(s):  
Kay Dora Abdul Ghani ◽  
Nor Hayati Hamid
Keyword(s):  
Energy Dissipation ◽  
Cyclic Loading ◽  
Seismic Performance ◽  
Experimental Work ◽  
Concrete Beam ◽  
Steel Fiber ◽  
Precast Concrete ◽  
Experimental Results ◽  
Column Joint ◽  
Initial Cracks

The experimental work on two full-scale precast concrete beam-column corner joints with corbels was carried out and their seismic performance was examined. The first specimen was constructed without steel fiber, while second specimen was constructed by mixed up steel fiber with concrete and placed it at the corbels area. The specimen were tested under reversible lateral cyclic loading up to ±1.5% drift. The experimental results showed that for the first specimen, the cracks start to occur at +0.5% drifts with spalling of concrete and major cracks were observed at corbel while for the second specimen, the initial cracks were observed at +0.75% with no damage at corbel. In this study, it can be concluded that precast beam-column joint without steel fiber has better ductility and stiffness than precast beam-column joint with steel fiber. However, precast beam-column joint with steel fiber has better energy dissipation and fewer cracks at corbel as compared to precast beam-column joint without steel fiber.

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