EXAMPLE 6. BUILDING VALUATION & REDESIGN STUDY

EXAMPLE 6: "STUDY FOR THE VALUATION AND REDESIGN OF A BUILDING ACCORDING TO THE CANC. 8 The four categories of importance are defined according to Annex 2.1 of the EIA and buildings are distinguished into (I) buildings of minor importance in terms of public safety, (II) in ordinary buildings, (III) buildings housing establishments of very high economic importance and public assembly buildings; and (IV) in buildings whose function is vital during and after the earthquake. Investigation, documentation of the load-bearing structure of an existing structure §3 Prior to the preparation of any valuation or redesign study, it is necessary to investigate and document the existing structure to a sufficient extent and depth in order to make the data on which the valuation or redesign study will be based as reliable as possible. This requires – the recording of the structure and its condition, – the compilation of the history of the construction and its maintenance, – the recording of any damage or deterioration, and – the performance of on-site exploratory work and measurements. §3.1 Damage and deterioration are recorded regardless of whether they are caused by earthquake or other actions (fire, environmental actions, etc.). Depending on the intensity and extent of the damage or deterioration, and as far as the usability of the building is concerned, the following cases are mentioned: i. No or minor damage : The building can be used without restrictions. ii. Severe damage : The ability to use the building should be severely restricted until a more accurate and final assessment of the situation is made. The possibility of safety measures and shoring or bracing should also be considered. iii. Severe damage, with or without collapse : Access to the building and access to the surrounding area should be prohibited. Parts likely to collapse suddenly should be demolished immediately and immediate intervention measures should be considered (see § 3.4.e). Inspection procedures, checklists and other data collection procedures will follow professional or public agency specifications and should be compatible with the means available for inspection, investigation and repair/reinforcement measures.