Quantifying the Differences in Documentation and Modeling Levels for Building Pathology and Diagnostics
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ORIGINAL PAPER
Quantifying the Differences in Documentation and Modeling Levels for Building Pathology and Diagnostics Rebecca Napolitano1 · Michael Hess2 · Branko Glisic1 Received: 5 February 2019 / Accepted: 28 June 2019 © The Author(s) 2019
Abstract Building pathology and diagnostics enable a practitioner to quantify the severity of damage to an existing structure as well as prioritize interventive and preventive measures. Two key aspects of building pathology and diagnostics are documentation and analysis to understand how damage could have occurred on a structure and how it affects overall stability. Within these two methods there are various levels which a practitioner can utilize. The aim of the present work is to quantify the differences in documentation and modeling levels to understand how they affect the overall process of building pathology and delineate the advantages and disadvantages of each approach. Using combinations of photogrammetry, laser scanning, thermal imaging, distinct element modeling, and finite-distinct element modeling, this work seeks to understand how differences in the level of numerical modeling affect damage diagnoses as well as how differences in documentation levels affect damage diagnoses. In particular, the advantages and disadvantages of simulations using simplified micro-modeling versus detailed micro-modeling, the effects of small perturbations to modeling geometry, and the influences of initial conditions are explored. These questions are examined through the use of two case studies including the foundation walls of the Baptistery di San Giovanni in Florence, Italy and a wall in Palazzo Vecchio in Florence, Italy.
1 Introduction Building pathology and diagnostics focuses on the degradation and downfall of existing structures. By assessing the condition of a building, the sources of defects and paths for intervention can be presented in an actionable and intelligible manner [28]. In particular, the severity of defects can be quantified, the sources can be identified, and plans for intervention and prevention can be prioritized [79]. The condition of an existing structure can be assessed by assembling relevant data regarding a building, documenting it with reality-based imaging methods, and using computational modeling to simulate its response to a spectrum of loading conditions. During this process both the documentation and computational modeling can be carried out at different levels depending on the scope and budget of a project. The overall aim of this paper is to understand how the different levels of * Rebecca Napolitano [email protected] 1
Department of Civil and Environmental Engineering, Princeton University, Princeton, USA
Department of Civil Engineering, University of California San Diego, San Diego, USA
2
documentation and computational modeling can affect the process of building pathology and what are the advantages and disadvantages of the different approaches. Letellier [39] and Santana and Patias [54] outline three main levels of documentatio
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