Seismic behaviour of Confined Masonry Walls

Authors: Miha Tomazevic and Iztok Klemenc

Reference: Earthquake Engg.and Structural Dynamics,Wiley Interscience, March 1997

Summary:

Rational method for modeling of seismic behaviour of CM walls has been carried out based on test results on plain and CM wall with h/l ratio 1.5, made at 1:5 scale. A trrlinear model wherein resistance is calculated as combination of shear resistance of plain masonry and dowel effect of tie-collumn reinforcement. THe method was verified for prototype CM wall with h/l ratio equal to 1.

Conclusion and future Scope:

Monotonic behaviour and actual boundary restraints are assumed in the case of determination of effective stiffness of CM wall panel.  Stiffness degradation has been modelled as a function of effective stiffness of the panel and damage index at characteristic limit states.  Good coorelation between predicted and experimental envelopes has been obtained