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Shear-induced Deformation of FRP RC Beams (bibtex)
by Fang Yang, Maurizio Guadagnini
Abstract:
The low stiffness of FRP reinforcement, along with its lack of ductility, yields a deformation and cracking behaviour of the resulting FRP RC elements that is different from that of their steel RC equivalent. The ability of estimating accurately the deformation of structural elements at a given level of load is critical not only when assessing their in-service behaviour, but also whenever information on maximum deflections, crack widths or rotations is required, for instance when carrying out a performance-based design. Several predictive equations and design guidelines are currently available to estimate the deformation of FRP reinforced members. Although the flexural deflection determined according to most of these proposals seems to adequately capture the total deformation observed up to service load, as the linear elastic approach is still applicable, deformations at load levels beyond service can be largely underestimated. This additional deflection, which has been observed experimentally by various researchers, can be attributed to various causes. This paper will discuss some of the aspects than can affect deflections of RC beams and in particular shear-induced deflections.
Reference:
Shear-induced Deformation of FRP RC Beams (Fang Yang, Maurizio Guadagnini), In FRPRCS-11: 11th International Symposium on Fiber Reinforced Polymers for Reinforced Concrete Structures (Joaquim Barros, Jose Sena-Cruz, eds.), 2013. (electronic proceedings)
Bibtex Entry:
@INPROCEEDINGS{Yang2013,
  author = {Fang Yang and Maurizio Guadagnini},
  title = {Shear-induced Deformation of FRP RC Beams},
  booktitle = {FRPRCS-11: 11th International Symposium on Fiber Reinforced Polymers
	for Reinforced Concrete Structures},
  year = {2013},
  editor = {Joaquim Barros and Jose Sena-Cruz},
  month = {June},
  note = {electronic proceedings},
  abstract = {The low stiffness of FRP reinforcement, along with its lack of ductility,
	yields a deformation and cracking behaviour of the resulting FRP
	RC elements that is different from that of their steel RC equivalent.
	The ability of estimating accurately the deformation of structural
	elements at a given level of load is critical not only when assessing
	their in-service behaviour, but also whenever information on maximum
	deflections, crack widths or rotations is required, for instance
	when carrying out a performance-based design. Several predictive
	equations and design guidelines are currently available to estimate
	the deformation of FRP reinforced members. Although the flexural
	deflection determined according to most of these proposals seems
	to adequately capture the total deformation observed up to service
	load, as the linear elastic approach is still applicable, deformations
	at load levels beyond service can be largely underestimated. This
	additional deflection, which has been observed experimentally by
	various researchers, can be attributed to various causes. This paper
	will discuss some of the aspects than can affect deflections of RC
	beams and in particular shear-induced deflections.},
  keywords = {Analytical analysis; Reinforced concrete; Limit design; FRP rod; Beam},
  owner = {Maurizio},
  timestamp = {2013.07.18}
}
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