Abstract
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.
Highlights
The ability to quickly and freely download parametric three and four dimensional construction assemblies and building information model (BIM) objects from manufacturer libraries makes BIM an efficient and cost effective tool for the design, construction, and life cycle management of doi:10.5194/isprsannals-II-5-123-2014
BIM has proven valuable for the documentation of architectural heritage and for the long-term management of heritage assets
Acknowledging an absence of freely available BIM assemblies and objects for heritage buildings, the research discussed in this paper looks to capitalize on the advantages of BIM through the development of a modelling strategy — using terrestrial laser scans (TLS) data and photogrammetric survey data — to produce ‘generic’ but parametric Gothic arches that can be modified to satisfy a broad spectrum of unique variations
Summary
1.1 Context “There is, I repeat, no degradation, no reproach in this, but all dignity and honourableness: and we should err grievously in refusing either to recognize as an essential character of the existing architecture of the North, or to admit as a desirable character in that which it yet may be, this wildness of thought, and roughness of work; this look of mountain brotherhood between the cathedral and the Alp; this magnificence of sturdy power, put forth only the more energetically because the fine finger-touch was chilled away by the frosty wind, and the eye dimmed by the moor-mist, or blinded by the hail; this outspeaking of the strong spirit of men who may not gather redundant fruitage from the earth, nor bask in dreamy benignity of sunshine, but must break the rock for bread, and cleave the forest for fire, and show, even in what they did for their delight; some of the hard habits of the arm and heart that grew on them as they swung the axe or pressed the plough.” John Ruskin The Stones of Venice. Built on a rocky outcrop overlooking the turbulent Ottawa River, Canada’s Parliament Hill is a testament to the “savageness” of John Ruskin’s Gothic Architecture. Framed by three monumental buildings — the West, Centre and East Blocks — “The Hill” is a designated National Historic Site and both the political and symbolic heart of the country. The West Block has housed committee rooms and offices for parliamentarians — including the Prime Minster. The building that we see today was designed in three phases Construction began in 1859, following the Gothic Revival design of Thomas Stent and Augustus Laver. Construction of the first phase was completed in 1866. The second and third phases, Gothic in design, were completed in 1878 and 1906, respectively. The building underwent a significant renovation to the interior and exterior in 1965
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
