INTEGRATING BIM WITH ON SITE INVESTIGATION FOR SEISMIC VULNERABILITY ASSESSMENT
Riferimenti GIAN PAOLO CIMELLARO
Tipo tesi RESEARCH / EXPERIMENTAL
Descrizione The Italian school buildings asset consists of over 40,000 units. The most (more than 60%) were built before the introduction of the national standard on school buildings and construc-tions in seismic areas. The present research aims to implement a methodology that consists in an informative modelling for seismic risk analysis. The objective of the activity is to pro-vide the policy makers of an innovative and useful tool for screening the existing building stock, in order to define the priorities of intervention. The research is divided into several parts.
The paper firstly investigates a structured way to collect data for an existing school building, through non-destructive tests (impact hammer - sclerometer, pacometer, thermal camera, ac-celerometric network) for the reconstruction of the information heritage related to the struc-tures. The existing BIM model is then integrated with the structural data, e.g. the cast in place reinforced concrete and, in particular, the type of reinforcement, the position of the steel rebars, the joints’ and beams’ positions, dimensions, etc. The usefulness of implement-ing the actual BIM LOD (level of detail) or an higher detail level that can represent the new state of knowledge is also investigated.
Then, the on field acceleration measures to extract the modal characteristics of the analyzed structure are also analyzed. This is in order to integrate the BIM model with the natural vi-bration signature of the structure but also to prepare a validated finite element model. The computation of the vulnerability coefficient of the structure in accordance with the new Ital-ian standard is the last step.
Conoscenze richieste English
Scadenza validita proposta 19/12/2019 PROPONI LA TUA CANDIDATURA