WIT Press

Durability Assessment Of Heritage Architecture


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M. Holický & J. Marková


General principles on durability assessment are provided in a newly developing international standard ISO \“General Principles on the Design of Structures for Durability” prepared by an international working group of experts. It is expected that the document will soon be completed and then implemented into the systems of national standards in many countries. The document can be used in durability assessment of any building including heritage architecture. However, the operational use of the new procedures in practice would require additional studies focussed primarily on durability criteria, physical models of material deterioration, and theoretical models of basic variables. It appears that the probabilistic methods may provide valuable background information facilitating specification of appropriate durability criteria. Keywords: durability, service life, limit states, target probability, architecture. 1 Introduction The Technical Committee TC 98 of the International Organisation for Standardisation ISO prepares a new document on structural design (ISO 13823 [1]) provisionally entitled \“General Principles on the Design of Structures for Durability”. It is foreseen that the document will be used for durability assessment of buildings from different materials including heritage architecture. The document is based on fundamental principles provided in recent international documents (ISO 2394 [2], ISO 19338 [3] and EN [4]). Materials of other international organisations (CEB [5] and RILEM [6] and Fib [7]) and number of publications ([8] to [13]) are also taken into account. Other references to ISO/IEC materials and to particular studies are given in the upcoming document ISO 13823 [1]. Experts participating in the development of the document ISO 13823 [1] come from different countries of the whole word. International discussions of


durability, service life, limit states, target probability, architecture.