6th International Conference on Structural Analysis of Historical Constructions: Preserving safety and significance edition:6 pages:1321-1329
SAHC location:Bath date:2-4 July 2008
The architectural preservation process is generally based on a sequence of anamnesis and analysis, diagnosis, therapy, control and prognosis. In the analysis phase, an objective way to assess the safety of the structure is essential. The outline of the assessment process is described both in the ISCARSAH Recommendations and ISO13822, referring to determining the actual safety or reliability of existing (historical) structures. This paper focuses on the use of reliability based assessment techniques, using a probabilistic analysis accounting for the uncertainty within the analysis in an objective manner. As a result the user obtains a value for the actual reliability or failure probability. Besides a general description of its possibilities within the analysis of historical structures, an application is treated to illustrate the methodology as well as its limitations.