Fragility Curves for Material Characteristics and Damage Index for Brick Masonry Exposed to Freeze–Thaw Action

In regions exposed to floods followed by cold weather, brick masonry as a structural basis of the building envelope can be damaged due accompanying phenomenon freezing and thawing. The main purpose article is development mathematical model able predict chosen mechanical parameters damage index wallets for given number freeze-thaw cycles. For this, statistical derived from experimental data used. As result, regression curves Young’s modulus ductility two types mortar are obtained. Furthermore, fragility also index, which based on displacement ductility, presented. obtained results enable probabilistic risk assessments in case deteriorated increased freeze–thaw