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Economical and Technical Comparison of Steel Bonding and CFRP

economic and technical comparison of bonding steel method and carbon fiber(CFRP) strengthening reinforcement concrete beams

Economic and technical comparison of bonding steel method and carbon fiber(CFRP) strengthening reinforcement concrete beams


bonding steel method



carbon fiber(CFRP) strengthening reinforcement



ItemSteel Plate BondingCFRP StrengtheningRemarks
Ease of constructionGenerally simpleSimple
Construction site space requirementsLowLower
Construction periodShortShorter
Whether wet workNoNo
Increased component bearing capacityHighHigh
Increased component stiffnessLowerLow
The effect of making up cracksGeneralBetter
The effect of reinforcement on the appearance, shape and weight of the original componentsHave some influenceBasically does not affect
Applicability to the outer contour of special-shaped componentsPoorBetter
Requirements on the surface of the substrate to be reinforcedHighHigh
Impact on production and lifeHave some influenceBasically does not affect
Resistant to acid, alkali, salt and atmospheric corrosionPoorBetter
Requirements for structural adhesive performance, environmental corrosion, etc.HighHigh
Effective bonding surface saturationHighHigher
Fire resistance and high temperature resistancePoorGeneralDepends on the performance of structural adhesive
Stress hysteresis

More obvious

Obvious


Seismic performance (mainly component ductility)GoodGood
Construction cost (economical)CheapSlightly more expensive
Requirements for the construction level of the construction unitHigherHigher
Daily maintenance costsHigherLower


Remarks: Horse can customize high temperature resistant structural adhesives for bonding steel and carbon fiber reinforcement strengthening

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