EXAMPLE 6. BUILDING VALUATION & REDESIGN STUDY

EXAMPLE 6: "STUDY FOR THE VALUATION AND REDESIGN OF A BUILDING ACCORDING TO THE CANC. 11 It is recalled that for the elastic analyses (checks in terms of forces - intensities) the representative (characteristic) strength value of the materials is the mean value minus one standard deviation, while for the inelastic analyses (checks in terms of deformations) and for the m method the representative (characteristic) strength value of the materials is the mean value. Method m is considered to belong, as far as the determination of strength is concerned, to the inelastic methods. The EIS provides criteria for determining the S.A.D. §3.6.4 and Minimum investigation requirements for material characteristics, evaluation of results and definition of S.A.D. §3.7 In addition, in cases where it is objectively impossible to carry out the inspection and investigation programme (§§ 3.5 and 3.6) for the characteristics of the materials, and if no problems of defects, wear and tear, damage, etc. are found, reliable results of previous quality inspections may be used to document the strength of the materials. Although these are not available, it is possible, exceptionally, to use 'in absentia' representative material strength values in accordance with Annex 3.1. In this case the Data Reliability Level (DRL) is considered 'tolerable' for concrete and masonry infills and 'satisfactory' for reinforcing steel.