A Numerical Model for Pre-Monitoring Design of Historical Colonnade Courtyards: The Case Study of Chiaramonte Palace in Palermo

Abstract

This paper proposes a numerical model that can be used for theoretical and experimental dynamic characterization of historical colonnade courtyards. Such an architectural element appears often in buildings of historical heritage and, especially under seismic excitation, it represents the most vulnerable structural part. Therefore, it is very important to have reliable as well as simple models available for vulnerability analysis, to evaluate different reinforcing systems if needed, or to plan dynamic characterization tests or monitoring campaigns, as in the present case. Chiaramonte Palace, a wonderful example of the historical heritage of Palermo, is investigated as case study. Firstly, a review of the restoration and structural consolidation works made over the years is presented, as fundamental step towards the knowledge of any existing structural system. Then the acquired information are used to propose a simplified finite element model that properly accounts for the interaction with the surrounding part of the building, and that can be easily calibrated on the basis of estimated or measured vibration periods.

New approach for monitoring historic and heritage buildings: Using terrestrial laser scanning and generalised Procrustes analysis

“…Therefore, it is difficult to predicate the type and the location of deformations of this type of buildings that made some researchers to recommend, for an effective structural health monitoring, distributing redundant sensors . Other researchers have proposed a numerical modal analysis using finite elements to choose the appropriate locations for monitoring sensors, or employing digital photogrammetry and terrestrial laser scanning to obtain the finite element model . Consequently, the required technique should have ability to detect unpredictable deformations.…”

Development of Smart Applications for Coastal Erosion and Landslide Risk Reduction

“…For prevention, a central role is played both by the context in which the alert is produced that by the know-how previously accumulated through assimilation of the relevant prevention rules and their perceived trustworthiness. In the intervention phase, there is a need for active participation of multiple subjects to a concerted effort, under high levels of stress: thus it is essential to model trust factors focused on interaction and cooperation between subjects (Ahmed et al, 2020;Bilello et al, 2016;Castelli et al, 2008). The effectiveness of response approaches during a natural catastrophe relies heavily on delegated action by delegations of stakeholders that are willing, on the basis of their well-tested and generally recognized expertise, of guarantee full legitimacy.…”

“…Bilello et al, 2016;Castelli et al, 2008; Castelli & Motta, 2013;Hironori et al, 2016) regarding also the disastrous events. The final goal is to have details that explain in depth the characteristic elements that can be used and that assist agencies such as national civil protection accessible in:…”

An innovative only-output method to identify a structural system

“…The structural output process has been acquired through the use of piezoelectric accelerometers whose characteristics are reported in table 1. Particularly, six sensors have been placed in the points indicated in figure 3 [31]. The piezoelectric sensors have been connected, through the use of BNC cables, to a PXIe 1028 acquisition unit equipped with a PXIe 4497 acquisition card.…”