From Field Work to Deliverables. Experiences on the Tin House Courtyard Documentation

Abstract

ABSTRACT:The Tin House Courtyard is a property of the National Capital Commission (NCC) in Ottawa, Canada. The site is located within the 'Mile of History', a historical route running from Parliament Hill to the Governor General's residence. Currently, existing assets are under intervention works that include several preservation and renewal actions. Within the broader project, one of the tasks before construction works started was the documentation of the set of facades. The Carleton Immersive Media Studio (CIMS) at Carleton University in Ottawa was commissioned by NCC to conduct the recording of the area. This paper describes the process undertaken from field work to the final deliverable to the client, as well as the issues faced in between. Nowadays, up to date surveying technologies have revolutionized the methodologies for cultural heritage documentation. In this regard, the recording strategy employed encompassed the use of photogrammetry, laser scanner, total station, as well as different pre and post processing software in order to generate the desired outcomes.

Displacement and deformation assessment of timber roof trusses through parametric modelling. The case of San Salvatore’s church in Bologna

“…The analysis method used has been the same, although specific adaptations were made to consider the differences in the structural scheme of the timber trusses. While in the Church of San Salvatore, nine trusses over the central nave have been analyzed, in the Basilica of San Domenico, the analysis has been carried out on the five trusses over the choir [7]. Both types of wooden trusses belong to the queen posts truss family and are often used to cover large spans up to 18/20 meters.…”

“…This project aims to deepen the knowledge of these complex construction systems and their evolution over time, through the wise use of Terrestrial Laser Scanning (TLS) and the reworking and interpretation of the collected point cloud data. The use of the laser scanner is certainly not new in the architectural survey of the built heritage, and it is increasingly used in the restoration field [2][3][4], while it is rarely or not yet used in the study of hidden three-dimensional structures such as wooden roofs [5][6][7][8]. The large number of geometric data deduced from the acquired point cloud by the TLS tool can be used to draw trusses in detail, derive precise and comparative information on their static behavior, and make assess-e-ISSN 2421-4574 a religious figure.…”

Wooden Truss Analysis, Preservation Strategies, and Digital Documentation through Parametric 3D Modeling and HBIM Workflow

“…Still-high costs, the operative expertise need, and time-consuming process dependence strongly limited their widespread use [27]. If the use of TLS for the surveying of complex architectural surfaces is not new and is linked to many types of research in the field of restoration [28], its application to the study of hidden spatial structures, such as wooden roofs, is rarer or even absent. An example can be found in the analysis of past interventions on the wooden roof of the "Castello del Valentino" [29], where a TLS point cloud was manually rendered to obtain a finite element model useful for the numerical assessment of the roof.…”

Wooden Trusses Reconstruction and Analysis Through Parametric 3d Modeling

“…However, certain limitations like nonaffordability, requiring expertise to operate, and dependence on time-consuming processes are restricting their usage (Kalyan et al, 2016). Actually, if use of TLS for surveying complex architectural surfaces is not new and is matter of many researches in restoration field (Bello Caballero et al, 2017), rarer, or even absent, is its use applied to the study of hidden spatial structures such as wooden roofing. One example is the analysis of past intervention in the timber roof of San Valentino Castle (Bertolini-Cestari et al, 2015) in which a TLS point cloud is manually rendered to obtain a finite element model useful to the numerical assessment of the roofing.…”