EXAMPLE 6. BUILDING VALUATION & REDESIGN STUDY

EXAMPLE 6: "STUDY FOR THE VALUATION AND REDESIGN OF A BUILDING ACCORDING TO THE CANC. 83 3(a).5.1 Capability Curve It expresses the non-linear relationship between the imposed horizontal load and the displacement of the Control Node. EPE 7.1.2.2.1 Intensity-Deformation "F-d" curve α) The mechanical behaviour of a structural element, a critical region of a structural element, or a connection of elements (node), is described by means of a diagram of stress 'F' versus strain or relative displacement 'd'. The type, direction, etc. of the magnitude F shall be chosen so as to characterise the main part of the stress caused by the seismic action on the element, critical region or connection. The deflection δ shall be chosen so that, in combination with the intensity magnitude F, expresses the deformation energy of the element, critical region or connection. On the Resistance Curve, the "Steps" of the pushover analysis are formed in the form of points. The selected step is shown in pink and represents the creation of a plastic joint (i.e. when the shear stress at Control Node X has a value Vb then the first plastic joint is created). ▪ Moving the mouse to the step points displays the step number and the corresponding Vb and Ux values.