A new strut model for solid masonry infills in steel frames

The model can be observed in the following figure:158aP=0.001aM(6θ+7.5αp)θandαpin degreesLceff-p=0.006h(θ+αp-10λlh)θandαpin degreesα≅tan-11μαp=α-λlhαpandαin degreesaM is Mainstone proposed strut model and μ is coefficient of friction between bricks of the wall.