EXAMPLE 6. BUILDING VALUATION & REDESIGN STUDY

EXAMPLE 6: "STUDY FOR THE VALUATION AND REDESIGN OF A BUILDING ACCORDING TO THE CANC. 89 3(α). 5.3 Targeted Movement The three targeted movements, one for each level of performance. EIA 5.7.4.2 Targeted movement α. The target displacement δt (§5.7.1.2) shall be calculated by taking into account appropriately all factors affecting the displacement of an inelastic responding building. It is permissible to consider the displacement of an elastic single- stage system with an eigenplane equal to the fundamental eigenplane of the building (§5.7.3.5) subject to the seismic action for which the check is being made, with an appropriate correction to obtain the corresponding displacement of the elastically responding building... CAN.EPE 2.2.1 General α. In order to serve wider socio-economic needs, various measures are introduced to "performance levels" (target behaviours) under given corresponding design earthquakes. β. The assessment or redesign objectives are combinations of a performance level on the one hand and a seismic action on the other hand, with a given "tolerable probability of exceedance during the technical lifetime of the building" (design earthquake). The options , , and give the deformed state of the vector for the three performance levels respectively, i.e. they show the deformed vector at the analysis step where the control node movement is equal to the corresponding target one. The blue dotted line corresponds to the target displacement for the first performance level and the yellow and red for the second and third respectively For this example, for a triangular distribution and for the combination -Fz+0.30*Fx the steps of the analysis corresponding to the three levels are: - Performance level : Step 85 - Performance level : Step 87 - Performance level : Step 89