Grand Palais Éphémère
The Grand Palais Éphémère is a temporary event hall on the Champ de Mars in Paris. The building was constructed in 2021 according to the plans of architect Jean-Michel Wilmotte by the event group GL Events on behalf of the Réunion des musées nationaux et du Grand Palais des Champs-Élysées and the Organizing Committee for the 2024 Summer Olympics. Initially, the building will replace the Grand Palais, which is closed for renovation work, and will be designated as one of the venues for the Olympic Games in Paris under the name Arena Champ-de-Mars. The building will then be dismantled.
Architecture
The plans for the Grand Palais Éphémère were drawn up by architect Jean-Michel Wilmotte. When planning the temporary structure, which is reminiscent of the transept of a church, he paid particular attention to the overall surroundings. The load-bearing structure of the glulam vault was made from spruce wood, which is encased in a translucent ETFE membrane.
It is 145 meters long, 140 meters wide, up to 20 meters high and covers an area of 10,000 m². This makes it significantly lower than the dome of the École militaire opposite it, which is reflected in the arched glass façade of the entrance on Place Joffre. The two arched entrances in the middle of the building are reminiscent of the arch motif of the base of the Eiffel Tower, which is located at the other end of the Champ de Mars.
Its alignment corresponds to that of the Eiffel Tower and thus blends harmoniously into the surroundings without being obtrusive or overshadowing the architecture of the École Militaire or the Eiffel Tower. The quick assembly on site was a decisive factor in the choice of timber construction. The site of the Grand Palais Éphémère was chosen by the City of Paris. As the building was to blend harmoniously into its surroundings, the basic structure was also quickly decided. The decision for the material was made just as quickly.
Events
The Grand Palais Éphémère now regularly hosts events that were previously held in the traditional Grand Palais. These include the Paris Photo trade fair, the annual Saut Hermès horse show and Chanel′s biannual fashion shows as part of Paris Fashion Week. Various art exhibitions, conferences and gala dinners are also held here. In 2022, the Wood Construction Forum, one of the most important events in the wood construction industry, was also held here.
The plans for the Grand Palais Éphémère were drawn up by architect Jean-Michel Wilmotte. When planning the temporary structure, which is reminiscent of the transept of a church, he paid particular attention to the overall surroundings. The load-bearing structure of the glulam vault was made from spruce wood, which is encased in a translucent ETFE membrane.
It is 145 meters long, 140 meters wide, up to 20 meters high and covers an area of 10,000 m². This makes it significantly lower than the dome of the École militaire opposite it, which is reflected in the arched glass façade of the entrance on Place Joffre. The two arched entrances in the middle of the building are reminiscent of the arch motif of the base of the Eiffel Tower, which is located at the other end of the Champ de Mars.
Its alignment corresponds to that of the Eiffel Tower and thus blends harmoniously into the surroundings without being obtrusive or overshadowing the architecture of the École Militaire or the Eiffel Tower. The quick assembly on site was a decisive factor in the choice of timber construction. The site of the Grand Palais Éphémère was chosen by the City of Paris. As the building was to blend harmoniously into its surroundings, the basic structure was also quickly decided. The decision for the material was made just as quickly.
Events
The Grand Palais Éphémère now regularly hosts events that were previously held in the traditional Grand Palais. These include the Paris Photo trade fair, the annual Saut Hermès horse show and Chanel′s biannual fashion shows as part of Paris Fashion Week. Various art exhibitions, conferences and gala dinners are also held here. In 2022, the Wood Construction Forum, one of the most important events in the wood construction industry, was also held here.
Fast on-site assembly decisive for the decision in favor of timber construction
The decision in favor of a timber construction was made due to the high degree of prefabrication outside of Paris, the delivery of the building in finished elements and the resulting significant reduction in construction time on site. If steel had been chosen, for example, much stronger anchors would have been required in the ground, the building would have been much heavier and the development would have been more complicated. The first plinth for the construction site was delivered in September 2020 and only a few months passed before construction work was completed in 2021
Costs and dismantling at the end of the period of use
The costs for the new temporary building amounted to 40 million euros and include the planning, construction, technical operation and maintenance of the building for four years as well as the dismantling.
Keyword "dismantling": the building should be dismantled after its use and rebuilt elsewhere. According to Wilmotte, some municipalities have already bought parts of the building and would like to reuse them, e.g. as a sports hall. Another major advantage of timber construction.
Materials
The wood used for the structure comes from sustainably managed forests and has been awarded the PEFC seal. Wood is a carbon store: an estimated 1956 tons of CO2 are bound by the roof truss! The double skin that surrounds the building not only has strong acoustic properties, but also thermal and ventilation properties, which can reduce energy costs. The transparent screen visible from the outside is designed from polymers derived from mineral and not petroleum sources, which generates 90 % less energy in production compared to glass; it is fully recyclable.
Schmid Screws Hainfeld
Thousands of RAPID® SuperSenkFix screws have been used for the metal structure attached to the beams. Perfectly suited for metal-to-wood connections thanks to the shoulder under the head, which exerts initial pressure on the fitting and optimal centering of the screw, the load-bearing capacities, such as pull-out resistance and head strength, make RAPID® SuperSenkFix a premium product for durable connections. They also have excellent corrosion resistance thanks to the BlueWin700+ coating.
The costs for the new temporary building amounted to 40 million euros and include the planning, construction, technical operation and maintenance of the building for four years as well as the dismantling.
Keyword "dismantling": the building should be dismantled after its use and rebuilt elsewhere. According to Wilmotte, some municipalities have already bought parts of the building and would like to reuse them, e.g. as a sports hall. Another major advantage of timber construction.
Materials
The wood used for the structure comes from sustainably managed forests and has been awarded the PEFC seal. Wood is a carbon store: an estimated 1956 tons of CO2 are bound by the roof truss! The double skin that surrounds the building not only has strong acoustic properties, but also thermal and ventilation properties, which can reduce energy costs. The transparent screen visible from the outside is designed from polymers derived from mineral and not petroleum sources, which generates 90 % less energy in production compared to glass; it is fully recyclable.
Schmid Screws Hainfeld
Thousands of RAPID® SuperSenkFix screws have been used for the metal structure attached to the beams. Perfectly suited for metal-to-wood connections thanks to the shoulder under the head, which exerts initial pressure on the fitting and optimal centering of the screw, the load-bearing capacities, such as pull-out resistance and head strength, make RAPID® SuperSenkFix a premium product for durable connections. They also have excellent corrosion resistance thanks to the BlueWin700+ coating.
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