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ELEMA – Structural Engineering Firm
ELEMA – Structural Engineering Firm
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New Structural Glass Shell | Grand Théâtre de Québec

  • Client :Grand Théâtre de Québec
  • Architecture :Lemay + Atelier 21
  • Photos Credits :Stéphane Groleau

The original Grand Théâtre de Québec building, constructed in 1971, has experienced significant deterioration of its precast concrete façade. The solution selected to remedy this erosion is the installation of a structural glass envelope to cover the entire perimeter of the existing building. This innovation will preserve the heritage of the building, the integrity of the mural by Jordi Bonnet with the words of the poet Claude Péloquin embedded and showcase its brutalist architecture, immortalized by architect Victor Prus.

ELEMA was commissioned to design the glass systems for this new transparent envelope of an approximate area of ​​5,900 m² (63,500 ft²). More specificly :

  • Development of the initial concept of the facade with the architects;
  • Analysis of the global and local behavior of the facade;
  • Structural specifications of glasses (types, dimensions and thicknesses);
  • Detailed design of about ten fasteners (horizontal, vertical, corner or angle application);
  • Coordination of glass systems with the structural steel engineers;
  • Development of glazing plans and specifications;
  • Consultation during the development of the construction sequence;
  • Construction site surveillance.

CPA Structural Glass‘ expertise was called upon for the Master team commissioned by the Grand Théâtre de Québec to assist the designers in all stages of the final development of the glass system and its interaction with the proposed frame by collaborating in collegiality with ELEMA’s engineers.

To consult the web camera of the construction site (tab “Travaux en direct”) …


Technical challenges :

  • System designed to consider operating range from -30 ° C (-22 ° F) to 80 ° C (176 ° F).
  • Glazing and fastening designed to ensure resistance to wind, seismic, thermal and snow loads.
  • Design of a joint system between the glasses with a width of 31 mm (1.22 in).  

Notable solutions and innovations :

  • Design of mounting plates made entirely of aluminum to avoid the risk of corrosion.
  • Fastening system designed to avoid piercing and glass cutting.
  • Custom design of the entire facade fastening system to respect the architectural intent.
  • Use of 2x10 and 10+12 tempered laminated glass with a 1.52 mm (0.060 in) SGP interlayer film.

Video(s)

More Information Visit Via Street View

Press reviews :

  • JOURNAL DE QUÉBEC - "Une murale à préserver"
  • LE SOLEIL - "Un cube de verre pour «encapsuler» le Grand Théâtre"
  • RADIO-CANADA - "Un écrin de verre pour le Grand Théâtre de Québec"
  • LE SOLEIL - "Prix d’excellence en architecture: l’écrin de verre du Grand Théâtre éblouit"
  • VOIR VERT - "La réfection de l’enveloppe du Grand Théâtre de Québec primée par l’IRAC"

Distinctions :

2023
Winner – 2023 City of Québec Mérites d’architecture – “Jury’s Choice”, “Sustainable Building”, “Heritage Conservation and Preservation – Public Building” and “Quebec City Planning and Conservation Commission Award – Public Building” Categories
2022
Winner – 2022 Loop Design Awards – « Architecture | Heritage Architecture »
2022
Winner – 2022 Loop Design Awards – « Themed | Design & Glass »
2021
Winner – 2021 Awards of Excellence in Architecture of the Ordre des Architectes du Québec – “People’s Choice Award” and “Grand Prize for Excellence Award”
2021
Winner – 2021 Canadian Green Building Awards by SABMag – “Existing Building Upgrade” Category
2021
Winner – 2021 Awards of Excellence of the Royal Architecture Institute of Canada (RAIC) – “Innovation in Architecture” Medal
2021
Platinum Winner (“Special Award / Heritage Conservation, Restoration & Presentation” Category) + Gold Certification (“Public Building / Cultural Building” Category) – 2021 Grands Prix du design
2021
Winner – 2021 Architecture Masterprize – “Restoration and Renovation” Category
2021
Gold Winner (“Glass in Architecture” Category) + Silver Winner (“Façade” Category) – 2021 World Architecture News Awards
2021
Winner – 2021 AN Best of Design Awards – “Restoration and Preservation” Category
2021
Gold Winner – 2021 IDA Design Awards – “Renovation” Category
2019
Winner – Awards of Excellence 2019 of the Canadian Institute of Steel Construction (CISC) – Québec – Buildings – Renovations category
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