The influence of web openings on the structural behavior of reinforced high-strength concrete deep beams

Yang, Keun–Hyeok; Eun, Hee-Chang; Chung, Heon-Soo

doi:10.1016/j.engstruct.2006.03.021

Cited by 87 publications

(68 citation statements)

References 5 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Due to sudden changes presented in the cross section of the beam, the opening edges are, for the most part, subjected to high stress concentrations, which inadvertently leads to induced transverse cracks in the beam; resulting in a significant reduction in the beam shear capacity and stiffness (Mansur 1998;Mansur et al 1999;Yang et al 2006). The external bonding of different materials, such as high-strength fiber reinforced plastics (FRP) or steel plates, has gained wide popularity in recent years to strengthen the RC structural (Hawileh et al 2012).…”

Section: Introductionmentioning

confidence: 99%

Repair of Pre-cracked Reinforced Concrete (RC) Beams with Openings Strengthened Using FRP Sheets Under Sustained Load

Osman

et al. 2017

Int J Concr Struct Mater

View full text Add to dashboard Cite

Strengthening reinforced concrete (RC) beams with openings by using aramid fiber reinforcement polymers (AFRP) on the beams' surfaces offers a useful solution for upgrading concrete structures to carry heavy loads. This paper presents a repairing technique of the AFRP sheets that effectively strengthens RC beams, controls both the failure modes and the stress distribution around the beam chords and enhances the serviceability (deflection produced under working loads be sufficiently small and cracking be controlled) of pre-cracked RC beams with openings. To investigate the possible damage that was caused by the service load and to simulate the structure behavior in the site, a comprehensive experimental study was performed. Two unstrengthened control beams, four beams that were pre-cracked before the application of the AFRP sheets and one beam that was strengthened without pre-cracking were tested. Cracking was first induced, followed by repair using various orientations of AFRP sheets, and then the beams were tested to failure. This load was kept constant during the strengthening process. The results show that both the preexisting damage level and the FRP orientation have a significant effect on strengthening effectiveness and failure mode. All of the strengthened specimens exhibited higher capacities with capacity enhancements ranging from 21.8 to 66.4%, and the crack width reduced by 25.6-82.7% at failure load compared to the control beam. Finally, the authors present a comparison between the experimental results and the predictions using the ACI 440.2R-08 guidelines.

show abstract

Section: Introductionmentioning

confidence: 99%

Repair of Pre-cracked Reinforced Concrete (RC) Beams with Openings Strengthened Using FRP Sheets Under Sustained Load

Osman

et al. 2017

Int J Concr Struct Mater

View full text Add to dashboard Cite

show abstract

“…In 2000, experiments on eleven reinforced concrete deep bending elements under the action of concentrated load and uniformly distributed load were conducted by Liu Lixin [2] and other people, under the action of concentrated load the deep beams critical diagonal cracks craze from bearing chairs to loading point, as different shear-to-span ratios, there are three kinds of failures, diagonal compression failure, shear compression failure, diagonal tension failure; critical diagonal cracks craze from bearing chairs to a quarter of the beam top span, diagonal compression failure will arise when high-to-span ratio is very small, shear compression failure will occur when high-to-span ratio is very big; shear-to-span ratio is the main factor affect deep bending elements shear strength, while shear strength also increases with increase of longitudinal stressed bar reinforcement ratios, turn to be linear relationship [3].…”

Section: Researches Status Of Deep Holed Beams Domestic and Overseasmentioning

confidence: 99%

Bearing performance analysis based on ANSYS of deep beams with opening

Liu

Jin

2011

2011 International Conference on Multimedia Technology

View full text Add to dashboard Cite

The numerical simulation of reinforced concrete deep beams with opening is analyzed by Finite Element Software ANSYS to establish reasonable mechanical model. The stress characteristics and deformation's situation of the deep beams with opening are in analyzed under concentrated load and different openings in different parts. The purpose is to supply some favorable suggestions in engineering application of reinforced concrete deep beam with openings. Keywords-deep beams with opening; force performance; the finite element; calculation analysisI.

show abstract

“…The inclusion of an opening in the web of an existing beam leads to early diagonal cracking and significantly reduces the beam shear capacity and stiffness [1][2][3][4]. The reduction in the shear capacity depends on the degree of interruption of the natural load path that is the line connecting the load and support points.…”

Section: Introductionmentioning

confidence: 99%

Nonlinear finite element modeling of concrete deep beams with openings strengthened with externally-bonded composites

2012

View full text Add to dashboard Cite

The influence of web openings on the structural behavior of reinforced high-strength concrete deep beams

Cited by 87 publications

References 5 publications

Repair of Pre-cracked Reinforced Concrete (RC) Beams with Openings Strengthened Using FRP Sheets Under Sustained Load

Repair of Pre-cracked Reinforced Concrete (RC) Beams with Openings Strengthened Using FRP Sheets Under Sustained Load

Bearing performance analysis based on ANSYS of deep beams with opening

Nonlinear finite element modeling of concrete deep beams with openings strengthened with externally-bonded composites

Contact Info

Product

Resources

About