Experimental study on the flexural behavior of RC beams strengthened with prestressed BFRP laminates

2021 ◽  
Vol 233 ◽  
pp. 111801
Author(s):  
Changyuan Liu ◽  
Xin Wang ◽  
Jianzhe Shi ◽  
Lulu Liu ◽  
Zhishen Wu
Keyword(s):  
Experimental Study ◽  
Flexural Behavior ◽  
Rc Beams

Experimental Study on Flexural Behavior of Damaged RC Beams Strengthened with Prestressed CFRP Plate

2011 ◽  
Vol 250-253 ◽  
pp. 2263-2270
Author(s):  
Rui Zhou ◽  
Mei Zhen Zhang ◽  
Zhou Hong Zong
Keyword(s):  
Experimental Study ◽  
Finite Element ◽  
Element Model ◽  
Nonlinear Finite Element ◽  
Flexural Behavior ◽  
Finite Element Models ◽  
Rc Beams ◽  
Cfrp Plate ◽  
Sustained Loading ◽  
The Finite Element Model

Strengthening using prestressed CFRP plate is a new developed technology in recent years, which can significantly improve the flexural behavior of reinforced concrete (RC) beams. In this paper, an experimental study including four RC beams stengthened with CFRP plates using self-developed anchorage system was carried out. The nonlinear finite element models of the strengthened beams were constructed to simulate the influence of flexural behavior on RC beams strengthened with CFRP plates under different damage degrees. The experimental results indicated that initial damage degrees have greatly influence on the crack distribution and ductility, deflection and the ultimate flexural strength of the strengthened beams, as well as steel reinforcement strain and CFRP plate strain. Meanwhile, the finite element model can predict accurately performances of strengthened RC beams before CFRP debonding. In addition, the numerical analysis indicated that the sustained loading while strengthening RC beam using prestressed CFRP plates would induce adverse effect, so the live loading should be removed before starting the strengthening works.

Sign in / Sign up

Export Citation Format

Share Document