ABSTRACT:In 2011, Public Works and Government Services Canada (PWGSC) embarked on a comprehensive rehabilitation of the historically significant West Block of Canada's Parliament Hill. With over 17 thousand square meters of floor space, the West Block is one of the largest projects of its kind in the world. As part of the rehabilitation, PWGSC is working with the Carleton Immersive Media Studio (CIMS) to develop a building information model (BIM) that can serve as maintenance and life-cycle management tool once construction is completed. The scale and complexity of the model have presented many challenges. One of these challenges is determining appropriate levels of detail (LoD). While still a matter of debate in the development of international BIM standards, LoD is further complicated in the context of heritage buildings because we must reconcile the LoD of the BIM with that used in the documentation process (terrestrial laser scan and photogrammetric survey data). In this paper, we will discuss our work to date on establishing appropriate LoD within the West Block BIM that will best serve the end use. To facilitate this, we have developed a single parametric model for gothic pointed arches that can be used for over seventy-five unique window types present in the West Block. Using the AEC (CAN) BIM as a reference, we have developed a workflow to test each of these window types at three distinct levels of detail. We have found that the parametric Gothic arch significantly reduces the amount of time necessary to develop scenarios to test appropriate LoD.
<p><strong>Abstract.</strong> In this paper, we explore the evolution of modelling practices used to develop three significant Heritage Building Information Models (HBIM) on Canada’s Parliament Hill National Historic Site – West Block, Centre Block, and The Library of Parliament. The unique scope, objective, and timeline for each model required an in-depth analysis to select the appropriate classification for Level of Detail (LOD) and Level of Accuracy (LOA). With each project, the refinement of modelling practices and workflows evolved, culminating in one of our most complex and challenging projects – the Library of Parliament BIM. The purpose of this paper is to share ideas and lessons learned for the intricate challenges that emerge when using LOD and LOA classifications including trade-offs between model performance, tolerances, and anticipated BIM use. In addition, we will evaluate how these decisions effected managing the digitization, data processing, data synthesis, and visualisation of the models.</p>
Once a place of silence and solitary contemplation for a group of Franciscan friars known as Capuchos, Nossa Senhora da Piedade da Caparica (1558) today is in a state of confusion about the original configuration of its spaces. Following a major renovation project in the 1950s and a lack of documentation throughout its life, the convent seeks to better understand its past and its continued role within the municipality of Almada. Since no record drawings or descriptions of the building exist prior to the renovation, an interdisciplinary, mixed-methodological research approach was taken to generate a HBIM reconstruction of the convent. The HBIM will serve as a record of the building's modifications across time as well as an as-found record of the building to date for use into the future. This paper focuses on one aspect of this overall research project by presenting the modelling methods used to overcome the limitations of BIM software (Revit 2020) for heritage. Since the software was designed to facilitate the construction of new buildings, a high level of effort is needed to adapt the tool to fit the irregularities and asymmetries of heritage. Focusing on the ornate 17 th century facade -subjected to years of weathering and renovation campaigns-along with the entranceway and choir of the church, this paper addresses techniques for modelling a range of conditions typical to those found in heritage in Portugal. The paper will address methods for modelling irregular geometries such as wall deviations, arched ceilings, inconstancies in wall profiles and methods for modelling custom window families from point cloud data.
Critiquing the anthropocentric dispositions of architectural education, this dissertation introduces a "de-anthropocentric" vector of ethical thinking through fiction as a form of pedagogy. The term de-anthropocentric as opposed to non-anthropocentric here posits nonhuman life as an important dimension of architectural consideration while acknowledging that there are limitations to understanding or advocating on behalf of the nonhuman other.By problematizing anthropocentrism in this way, the research participates in concurrent discourses in philosophy, education theory, anthropology, biology and literature studies that challenge the inherited biases of Western ontology and epistemology. Recognizing the predominance of education in structuring these biases, the research takes inspiration from experimental approaches in posthuman education studies that historically situate and reorient definitions of the human and disciplinarity. Toward this, the dissertation investigates three trajectories in literature studies as departure points: the weird realism of Howard Phillips Lovecraft, the multispecies worlding of Donna Haraway and the graphic portrayal of animal subjectivities in David Herman's narratology beyond the human. From these examples, the dissertation theorizes nonhuman narrative, representation and worldbuilding approaches in an architectural context. Finally, locating the early Renaissance as a period of major educational transition in architecture, the research analyzes Antonio di Pietro Averlino's Libro architettonico (1461-63) as a model of fiction-based pedagogy for the present. Written as a iii continuous fictional dialogue disrupted by digressions into the natural environment, animals, anecdotes, fictional buildings and social practices, the work offers a multifaceted educational model for questioning human-nonhuman relations. Between text and image, the work instructs by imagining the ideal city of Sforzinda through the narrative device of the golden book: a source of ancient literary wisdom. Following an analysis of Filarete, the dissertation presents a re-interpretation of Filarete's golden book as a pedagogical device to channel critical insight from literature and other disciplines into architectural education. My sincerest appreciation goes to Stephen Fai for continually reminding me what this dissertation was trying to do and helping to achieve it. I am indebted to him for the many opportunities he has provided throughout my academic career. Claudio Sgarbi has been a source of deep insight and necessary interrogation throughout the years. I owe him immeasurable gratitude for his encouragement and for all the tunnels and burrows he has brought into my thinking and writing. Michael Jemtrud brought my attention to many of the discourses that inspired this dissertation. I truly appreciate his continued presence and willingness to listen to these ideas since my time at McGill. Roger Connah's pedagogical insight shaped my teaching and thinking tremendously during these past five years. Because of him ...
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