Shear capacity models for RC columns with FRCC jacketing

Existing RC buildings may suffer of brittle failure due to the limited shear capacity of non-conforming columns. To reduce the vulnerability of such members, several retrofit techniques based on composite materials can be successfully adopted for enhancing the shear capacity of RC columns. The use of FiberReinforced CementComposite (FRCC) jacketing has been re-cently recognized as an effective solution for improving the durability of RC members and some experimentaltests have been carried out for investigatingthe role of FRCC jacketing on the shear capacity of RC members.However, poor indicationsare availableregarding the modelling of strengthened members capacity and the design of the strengthening solution. In this work, an in deep analysis about the available analytical modelsfor assessing the shear capacity of membersis reported and thendifferent methods are proposed for assessing the shear capacity of RC members with FRCC jacketing.