Enrica Petrucci

An integrated Survey Experience for Assessing the Seismic Vulnerability of Senigallia’s Fortress (Italy): Documentation for Conservation and FEM Modeling

The paper presents the results of research carried out by an interdisciplinary team at the SAD in Ascoli Piceno in collaboration with MiBACT to verify the seismic safety of national museums. The object of study was the Rocca Roveresca Fortress complex in Senigallia (Marche, Italy), a unique example of a small 14th-century fortress shaped by a series of successive modifications. It currently houses a national museum. An integrated survey based on the acquisition of 3D laser-scanner data and endoscopic investigation was necessary to outline the traces of the stratifications and therefore to obtain different high- and low-poly 3D models useful for different purposes. The main objective was to propose an ideal workflow in developing 3D models that are useful for finite element method (FEM) analysis to detect hidden vulnerabilities in the fortress by evaluating the behaviour of several substructures in the walls.

Projection-based city atlas: An interactive, touchless, virtual tour of the urban fabric of Ascoli Piceno

This proposal is aimed at illustrating a low cost exhibit of a projection-based city atlas. The exhibit could be replicated and reconfigured in accordance with the size of the mock-up and the spatial arrangement of the place where it will be located. The paper will be divided into different sections in order to explain and illustrate: the state of the art and previous experiences about spatial augmented geographycal representation; the technical issues regarding the projection set-up and the technological framework related to the touchless interaction system; the content design process. Within this framework, the experimentation has been carried out on the urban area of Ascoli Piceno (Italy). Based on the description of events occurring over time, the interactive virtual tour aims to highlight how the urban fabric has changed throughout the historical and political periods that have affected the city.

A framework to increase the video-mapping accuracy of an architectural heritage mock-up

This paper aims to describe a method to improve the mapping accuracy of a spatial-projection-based augmented mock-up in order to illustrate different surveys conducted of the church of Santa Maria Inter Vineas in Ascoli Piceno (Italy). These surveys are compared to the churchs complex building history in order to better understand the changes that have occurred over the centuries and investigate different approaches to its restoration. A content-aware mesh-correction projection technique is illustrated, which can then project information concerning the cultural object of study onto a scaled mock-up, either for educational purposes and analytical knowledge, or to draft a restoration plan.

Assessment of seismic vulnerability of historical defensive walls

Abstract. This paper presents a study on the behaviour of the walls of the Rocca Roveresca of Senigallia in Italy built in the XIV century on the ruins of a former Roman defensive struc-ture. This is a peculiar example of a small fortress that had undergone in the XV century im-portant modifications of the plant in order to enhance its defensive performances. A linear finite element model is first developed in order to understand the dynamic behaviour of a ge-neric portion of the wall and to detect the probable incipient failure mechanisms. A subse-quent static nonlinear analysis is carried out, with the same finite element model, to investigate the formation of the cracking layout and to detect the position of plastic hinges. The last analysis level is carried out with a tailored macro-element constituted by three bod-ies, namely the two external curtains and the inner fill for which a degradation of the behav-iour is considered. The results obtained demonstrates the efficiency of the wall against earthquakes characterized by return times typical for ultimate limit states. Same issues that deserve further investigation are highlighted.

Method to define a solar energy platform for historical city centers and identification of new scenarios for sustainability

Sustainable energy is no longer a technological challenge, as many of its aspects have now been analyzed and solved. However, this is not true when looking for sustainable systems that are technologically compatible with the characteristics of the historical city. The research first investigated a specific case study: the historical center of Ascoli Piceno in the Marche Region. The analysis began by estimating the solar radiation and evaluating useful parameters such as the sky view factor and shadows. In order to provide useful services to citizens dealing with the environment and to reduce energy consumption, a web application was developed to identify renewable energy systems that have already been constructed in the municipal area and to assess the benefit of installing pv devices on the roofs.