Kindergarten School of Grézieu-la-Varenne
New Construction
- Building Type : Preschool, kindergarten, nursery
- Construction Year : 2018
- Delivery year : 2018
- Address 1 - street : 69290 GREZIEU LA VARENNE, France
- Climate zone : [Cfb] Marine Mild Winter, warm summer, no dry season.
- Net Floor Area : 1 810 m2
- Construction/refurbishment cost : 3 697 000 €
- Number of Children : 330 Children
- Cost/m2 : 2042.54 €/m2
Proposed by :
-
Primary energy need
73.5 kWhep/m2.an
(Calculation method : RT 2012 )
The building implements itself so as to be closer to the structuring axes of the site and to propose a frontage "strong and significant" in term of image, to open in the south on the courtyard, in arc of circle, to benefit from the bioclimatic orientation, for the optimization of the solar gains, the protection against the winds of the north of the spaces of recreations, an inscription in the vein of the North-South winds for the natural ventilation through, the comfort in hot season, and views of the great landscape, preserve a space to enlarge the school to the west and showcase the building in a "box" plant installed in the regulatory withdrawals to the north and development of an ecological corridor to the 'East.
The project articulates the two main functional entities of the program in two building blocks, which come in continuity of one another on an arc of circle: the school (10 classrooms, 2 rooms of motricity, auditorium, offices) and the kitchen with the dining room.
A south-west / northeast radiating axis supports a large pedestrian mall, underlined by the roof of the courtyard, connecting the new street and the parking lots to the foyer crossing the school, which leads north to the crossroads of the Greenway (to encourage and encourage this type of eco-friendly travel) with the access street.
This backbone of the project generates a co-visibility by its transparency to unify the equipment, both shot on the "heart island" in the south, but also open on its north-east facade, the latter is not being not only a rear facade, but an elevation of representation of the institution in the village fabric, an "urban" facade.
The general concept of radiant equipment seeks to create an "inside" around the main access mall, for "village-school", composed of small volumes on a human scale.
This split architectural feature allows the building to be apprehended as a series of organically installed pavilions in a natural continuum, both north and south. It offers a scale architecture for children, while remaining compact at the level of the envelope to be energy efficient and economical.
The internal organization is simple and develops around a central circulating arc which serves: south side, the living areas and north side, the serving spaces. This circulation expands at the level of the class entrances, to form well-sized cloakrooms and out of the passing stream.
Rooms naturally lit naturally with adjustable solar protection (BSO)
Work on the thermal envelope of the building has reduced the energy needs of heating and lighting to meet the challenges of passive building.
Passive level achieved for the school part: heating requirements <15kWh / m2.an
Sustainable development approach of the project owner
The client attaches great importance to the environmental quality of this operation, which goes beyond simple regulatory levels for a large number of components. However, he does not consider HQE® certification because he prefers an environmental approach that best meets the challenges he has identified and limits administrative burdens.
Architectural description
The general concept of radiant equipment seeks to create an "inside" around the main access mall, for "village-school", consisting of small volumes on a human scale.
This split architectural feature allows the building to be apprehended as a series of organically installed pavilions in a natural continuum, both north and south. It offers a scale architecture for children, while remaining compact at the level of the envelope to be energy efficient and economical.
The internal organization is simple and develops around a central circulation in an arc of circle which serves:
- South side, the living areas: classrooms, - North side, the serving areas: activity rooms, cleaning rooms, offices and meeting rooms, technical rooms. This circulation expands at several points: - at the entrance hall at the center of this distribution, - at the level of the class entrances, to form well-sized cloakrooms and out of the flow.
The writing of the two main elevations is differentiated according to the orientations: - in the south, large windows taking advantage of the sunshine and the landscape, are equipped with large overflowing frames that allow sun protection in summer (complete with blinds) . The facades of the volumes are clad in dark panels that contrast with the wooden cladding of the interior of the frames, thus protected against differentiated aging.
- to the north, more measured bays punctuate the facade of "representation" along the Greenway and the path of the Voyageurs; the latter is dressed with vertical wooden cleats, which are painted on their re-entrant slice: this treatment provides a dynamic and changing perception of volumes, depending on the walk of the observer. The colors that follow each other are never perceptible in their entirety but always in a sequence of gradients studied according to a color chart. In doing so, we offer a facade "moving" and kinetic equipment along the route of many visitors using its tracks, both fun, joyful but refined. At the level of the kitchen / restaurant, the two writings meet, giving this body of building the function of signal of entry of the site.
Building users opinion
The building is just delivered. The occupants have not yet returned to the building.
See more details about this project
http://www.tekhne-architectes.com/projet_archi/ecole-communale-de-grezieu-la-varenne/?cat=Enseignement
Contractor
Construction Manager
Stakeholders
Other consultancy agency
TRIBU
Sarah GIRAUD, [email protected], 04 26 03 48 20
http://www.tribu-concevoirdurable.frenvironmental quality studies office
Structures calculist
ARBORESCENCE
Pierre BREGEON, [email protected], 04 79 07 96 54
http://www.arborescence-concept.com/fr/accueil/index.htmdesign office wood structure
Other consultancy agency
Echo Energies Solutions
Geoffrey MENARD, [email protected]
https://energies-ees.fr/thermal and fluid design office
Structures calculist
DPI
Didier PIERRON, [email protected], 04 78 53 00 84
design office concrete structure
Other consultancy agency
ACI
Alain CLEMENT, [email protected], 04 72 12 00 28
kitchen design office
Other consultancy agency
DENIZOU
Stephane NARDY, [email protected], 04 78 84 44 71
Construction Economist
Assistance to the Contracting Authority
EEGENIE
Philippe VAUFREY, [email protected],04 78 74 41 58
AMO environmental quality
Assistance to the Contracting Authority
SEDL
Jérôme DUMAS, [email protected]
Operational AMO
Assistance to the Contracting Authority
INITIAL CONSULTANT
Stéphane Coche
programmiste
Company
SDCC
David BOSCH, [email protected]
company lot structure wood
Type of market
Global performance contract
Energy consumption
- 73,50 kWhep/m2.an
- 98,73 kWhep/m2.an
Real final energy consumption
83,00 kWhef/m2.an
Envelope performance
- 0,25 W.m-2.K-1
- 0,89
- 0,60
More information
For the moment there is no invoice. An AMO QEB two-year analysis is planned to identify potential problems and to take corrective action where necessary.
Systems
- Water radiator
- Low temperature floor heating
- Wood boiler
- Individual electric boiler
- Wood boiler
- No cooling system
- Free-cooling
- Double flow heat exchanger
- Wood boiler
- 56,00 %
Smart Building
Urban environment
- 10 280,00 m2
- 21,00 %
- 4 025,00
- to be closer to the structuring axes of the site (path of the Voyageur and green way) and to propose a facade "strong and significant" in term of image,
- open to the south on the courtyard, in an arc, to enjoy the bioclimatic orientation and views of the great landscape,
- preserve a space to enlarge the school to the west,
- to stage the building in a vegetal "box" installed in the regulatory withdrawals to the north and the development of the ecological corridor to the east,
- access mainly to the equipment from the south, from the new east-west street stuck on Voyageurs Road, which irrigates parking and other plots, or by pedestrian paths from the Greenway.
- south / south-west orientation of all classes (except for a basic class) for optimal living comfort,
- protection against the north wind of recreation areas,
- inscription in the vein of north-south winds for the natural ventilation through and comfort in hot season.
- the reduction of runoff water by installing green roofs and limiting impervious surfaces,
- the actual management, by the establishment of vegetated areas ensuring the collection and storage of rainwater: The roof waters are collected at the foot of facades in a system of valleys, then airlifted to a water system. retention ponds that dump into each other following the dip of the land before being rejected to the network in limited flow.
- the road network can be continued to ensure the service of the future activity zone,
- Parking pockets can also be extended to the south, in connection with future public facilities.
Product
Hunter Industry 2 air brewers
ALDES
M. Thorez [email protected]
https://pro.aldes.fr/Génie climatique, électricité / Ventilation, rafraîchissement
3-speed air blower.
The air brewers achieve the desired temperature with a temperature drop of -3 or 4 degrees. With work on the envelope for summer comfort it is a good alternative to air conditioning. The model prescribed and laid down had an acoustic requirement.
Dimeter 132 cm
Speed flow 5134/7524/8902 m3 / h depending on speed
acoustic 26.3 / 32.8 / 39 dB (A) depending on speed
price supplied asked 350 € HT
This product has been proposed by the project management to reach the desired temperature in hot period. The project owner has accepted this solution to stay in a passive system.
The users have not yet taken possession of the premises but we have a very good feedback from users of other buildings where we have prescribed such products.
Construction and exploitation costs
- 8 918 180,00 €
- 41 784,00 €
Energy bill
- 1 069 110,00 €
Comfort
GHG emissions
Life Cycle Analysis
Reasons for participating in the competition(s)
PASSIVE LEVEL heating requirement <15kWh / m2.an
Building candidate in the category
Energie & Climats Tempérés
Coup de Cœur des Internautes
Prix des Etudiants
Tekhne Architectes
Other case studies
Contest