EXAMPLE 6. BUILDING VALUATION & REDESIGN STUDY

EXAMPLE 6: "STUDY FOR THE VALUATION AND REDESIGN OF A BUILDING ACCORDING TO THE CANC. 14 The selection of appropriate method is based on the importance and any damage or deterioration of the structure, as well as the available data on the cross-sections and strengths of the structural elements. In addition, the choice is also influenced by certain conditions that must be met for each method. These conditions are mainly related to the S.A.D. and the normality or otherwise of the structure under consideration. Allows the distinction of elements into primary and secondary* (except for S.E. "A"). *Secondary elements will be those elements that contribute to vertical loads but do not contribute significantly to earthquake resistance, or their contribution is rather unreliable due to low stiffness or strength or ductility. This category includes wall-coupling beams and, in general, relatively short beams contributing to walls, beams with indirect supports on beams, planted columns, etc. The distinction between primary and secondary elements is at the discretion of the engineer. 4.6 SINGLE INTEREST INDICATOR q The estimation of the available single index of behaviour of an existing structure depends on whether the building is damaged or not, as well as on the date of construction. Depending on the performance level for the assessment or redesign of the building's load-bearing structure (see Chapter 2), the differentiated values of q* given in the following Table are taken into account, with the reference value q΄ being the value applicable to performance level B ("Significant damage"), which corresponds to the provisions and provisions of EC 8-1, as applicable to the design of new buildings. According to Table S4.4 of CEE.EPE, the values of the behaviour index q are proposed for performance level B (significant damage), depending on the damage and the effect of the wall fillings on the whole structure: