8B. ANALYSIS PART 2

CHAPTER 8B 'ANALYSIS' 62 Calculation of Targeted v: The field refers to : Masonry members / Other members (concrete, metal) Selection of Capacity Curves with Residual strength after lamination Falling Branches The following concepts are mainly related to masonry using the Equivalent Frame Method • With gradual loss of strength It means the creation of "descending branches" (necessary for masonry) Explanation : The 1st curve starts and stops when a limb becomes Red Then, a hinge is applied to the limb and the 2nd curve starts. • Maximum number of curves The maximum number of downward branches to be created is set • Percentage Vmax for curve The range for calculating the final curve is defined. Explanation : Gradually branches (2), (3) and (4) arise and the girder reaches the limit state in which the reduction of the base shear is greater than 20% of the maximum base shear that had developed in the girder, Vmax It is noted that branch (4) which is entirely below the 20 % limit shall not be included in the final capacity curve of the structure, which shall be completed at the last point of curve (3). • Plastic joints at both ends Means the creation of a plastic joint at the other end of the member (necessary for masonry) -Remaining strength: It means that a residual strength at the end of the failed member will be taken into account, -with lower resistance Vres, but -with a larger θmax More about the Equivalent Frame Method in Manual F. Masonry with the Equivalent Frame Method