Brussels Greenbizz by architectesassoc.

BRUSSELS GREENBIZZ Environmental Incubator, Workshops and Of fices rue LefĂ¨vre in Brussels (work in progress)

BRUSSELS GREENBIZZ

MASTERPLAN

Environmental Incubator, Workshops and Of fices rue LefĂ¨vre in Brussels Located

long-

abandoned and polluted

It includes industrial 4-hectare workshops site for e n v i r othe n m e ncity t - o r i centre, ented near businesses andGREENBIZZ BRUSSELS spin-offs (low-energy), is part of aanlarge-scale incubator (nzeb) andurban 14-hectare officedevelopspace (passive), ment called plus TIVOLI, an array publicly of extra amenities funded by European openFEDER to the public and funds including citydev.brussels. exhibition space andincludes TIVOLI cafĂŠ. Two prinboth cipal volumes housing (+/-450 (phases unitsI and on II) articulate site in 2016) and a new economic public

plaza offering facilities in whichtransition GREENbetween BIZZ (12.000sqm) the more holds industhe trial quartier pivotal role. to the south and the more urban and residential one to the north. Sitting in limbo between these apparently opposed 1 Brussels Greenbizz 2 Tivoli 3 Tour&Taxis 4 Canal

BRUSSELS GREENBIZZ

CONCEPT

Environmental Incubator, Workshops and Of fices rue Lefèvre in Brussels

a b et

Lefè

vre

stre

Cla

stre

Cla

Lefè

vre

stre

Axe végétal Axe végétal

a Liaison> Tour&Taxis Liaison Tour&Taxis Tivoli > Tivoli

ouestpignon ouest Retrait pignonRetrait

> Canal Tivoli > Canal Liaison Tivoli b Liaison

Lien piéton végétale Lien piéton végétale

Main entranceMain GreenBizz entrance // lobby GreenBizz // lobby

stre

a b 50

stre

Cla

Lefè

vre

Mol

stre

et es

stre

Cla

Mol

Lefè

stre

Mol

Main street Tivoli Main street Tivoli

Coin d'angle Coin d'angle

West corner West corner

Espace partagé Espace partagé lourds charrois et légères lourds et légères Flux charroisFlux

The project includes workshops for environment-oriented businesses and

emulation housed within.

spin-offs (low-energy), an incubator (nzeb) and office space (passive), plus

Its dynamic, generous, and permeable organization, its mission to create

an array of extra amenities open to the public including exhibition space and

responsible employment, and its clearly expressed sustainable identity all

café. Two principal volumes (phases I and II) articulate a new public plaza

carry the same message: sustainable design can and must be about so

offering transition between the more industrial quartier to the south and

much more than implementing energy-efficiency and responsible material-

the more urban and residential one to the north. Sitting in limbo between

sourcing … sustainable design must be about implementing hope.

these apparently opposed activities, the project’s role is to create synergy: encouraging visitors as well as occupants, confirmed specialists as well as budding pioneers-to-be, adults as well as children to be part of the collective

BRUSSELS GREENBIZZ

CONCEPT

Environmental Incubator, Workshops and Of fices rue LefĂ¨vre in Brussels

Occupying the most strategic corner on site, the grand entrance lobby is a high-ceilinged light-filled communal space greeting occupants and visitors, but also the quartier and all its inhabitants. The open and modular volume allows for exhibitions, meetings, group activities or other events,

1 2

3 phase

onto the street and plaza whenever weather permits. The

1 3

and is completed by a cafeteria that should sprawl out

1 2 3

1 31

phase

corner position allows for fluid access to meeting rooms and administration at mezzanine level, to the incubator above, and to workshops behind. Six and eight meters high inside,

workshops face each other alongside two covered open-air streets federating activities arranged along them. These

streets are shared collective space welcoming very diverse 1

phase

animations, permeable and see-through on their northsouth axis, offering the show of bustling animation to neighbors and passers-by at street-level but also from the incubator above. All vehicle access (trucks, cars, deliveries, â&#x20AC;Ś) is concentrated south on the rue LefĂ¨vre on this noisy and traffic-ridden side of the block, ensuring as such that the three other sides get relative calm. Both streets are hooked-up north to a perpendicular promenade alongside the residential quartier and the proposed shared street-space parallel, this promenade leading

BRUSSELS GREENBIZZ

CONCEPT

Environmental Incubator, Workshops and Of fices rue LefĂ¨vre in Brussels

b 2

a a b

b b

directly back to the entrance lobby and out onto the plaza or up to the incu-

Let it be noted that the built and unbuilt forms of GREENBIZZ do not embody

bator at rooftop level. This east-west pedestrian backbone used by both

the end result or final product of any one of the particular workshops inside,

workshop and incubator occupants is fully visible on its entire length street-

however sustainable their production might be â&#x20AC;Ś they seethe and embody

side â&#x20AC;Ś hoping to make the liveliness going on inside the building more the

instead the federating experience going on inside these workplaces, the

clincher than the building itself. Perched above the workshops but only one-

collective effort, the emulation, the bustling exchange. Work is expressed

level thick, the incubator lays low in order to ensure maximum sun pene-

as something lively, something tempting, something to share, something

tration into housing across the street, bridges the bustling open-air streets

permeable, something responsible and especially something accessible

below, and gently folds itself around two sun-filled patios.

to all especially to the children playing ball on that plaza or sitting around watching the ballet of carts in those open-air streets.

BRUSSELS GREENBIZZ Environmental Incubator, Workshops and Of fices rue LefĂ¨vre in Brussels

BRUSSELS GREENBIZZ

FLOOR PLANS

Environmental Incubator, Workshops and Of fices rue Lefèvre in Brussels

SECOND FLOOR PLAN R+2

GROUND FLOOR PLAN R+0

BRUSSELS GREENBIZZ

FACADES

Environmental Incubator, Workshops and Of fices rue Lefèvre in Brussels

FACADE TIVOLI NORD

COUPE TRANSVERSALE EAST

COUPE LEFEVRE SUD

BRUSSELS GREENBIZZ

SKIN : PRECPETS

Environmental Incubator, Workshops and Of fices rue LefĂ¨vre in Brussels

As in any passive or near-passive project, Brussels Greenbizz â&#x20AC;&#x2122;s skin offers excellent thermal and airtightness performance. Prefabricated facade panels (offering as such unique quality control at a large-scale), ecological material sourcing (leading to alternative choices like timber), low maintenance (highly resistant skins inside and out), and multi-tasking (offering excellent acoustic performance for example, and concomitantly humidity control thanks to its lazured finish) all add extra long-term value. 3 types of panels are designed meeting technical (permeability, energy performance, functions,..) and functional needs. The workshop panels are 2,25 m wide and up to 10.00m high and 0,38 m thick. Exterior cladding is Kerto (pressuretreated laminated timber panels). The incubator panels are 10,80 m wide and 3,5 m high, and 0,46 m thick. Exterior cladding is industrial ribbed natural aluminium. The entrance VEC/timber panels are 2,7 m wide and 2 floors tall (10,00m), in fully transparent structural glazing on a timber structure.

BRUSSELS GREENBIZZ Environmental Incubator, Workshops and Of fices rue LefĂ¨vre in Brussels

https://vimeo.com/119342282

WORKSHOP PANELS

BRUSSELS GREENBIZZ Environmental Incubator, Workshops and Of fices rue Lefèvre in Brussels

INCUBATOR PANELS

BRUSSELS GREENBIZZ Environmental Incubator, Workshops and Of fices rue Lefèvre in Brussels

ENTRANCE PANELS

BRUSSELS GREENBIZZ

BLOWERDOOR TEST

Environmental Incubator, Workshops and Of fices rue Lefèvre in Brussels

38,4 1,5 1,5

FACADE INCUBATOR T YPE (PASSIVE)

29,7

7,2

1,2 2,7

6,1 1,5

26,7

1,2 13,2

air tightness n 50 : 0,6 vol /h

8 10 9 1 2 3

5 6

1,5

TOPAKUSTIK

ACOUSTIC INSULATION

NATURSPAN VB 15MM

FJI 240 @ 600+ CELLULOSE

HYDROPANEL 12MM

RESOL 84MM + REGENSCHERM

ALU PANNEL

SLS 45/270 (A2)

(LADURA) > EI60

FACADE WORKSHOPS 46 T YPE (LOW ENERGY )

38,4 1,5

29,7

7,2

1,2 2,7

air tightness : 1,5 vol /h 6,1 n 50 26,7 8 1,5

1 LADURA 15MM

1,2 13,2

2 NATURSPAN VB 15MM 3 BLC 270 @400/600 (A2)+ CELLULOSE 4 HYDROPANEL 12MM 5 LATTAGE 45/45 (INSTALLED ON SITE) 6 KERTO Q A3 27MM (INSTALLED O SITE) 7 SLS 45/270 (A2)

8 SLS 45/270 (A2)

1 2

4 5 6

9 MORGO

BRUSSELS GREENBIZZ

HEALTH AND WELLBEING

Environmental Incubator, Workshops and Of fices rue LefĂ¨vre in Brussels

The building is designed with optimum lighting and acoustics in mind, based on thorough daylight and artificial lighting simulations and acoustic modelling carried out early on. The limited floor depth and extra skylights in the incubator roof allow natural light to penetrate deeply into the heart of workspaces. The outer shell consists of a prefabricated curtain wall composed of a timber frame, natural insulation and recycled (and recyclable) aluminium panels. For all possible materials a deliberate choice is made, mostly based on life cycle analysis (LCA), minimising impact on man and environment, for example lowering energy consumption during production and transport, or limiting emission of Volatile Organic Compounds (VOC), formaldehyde and biocides. Together Greenbizz's acute awareness and concern over energy and environmental issues, the design team's interactive and openminded work process, and the construction team's solid on hands experience all play a critical role: first in defining, then in reaching the given architectural, technical and economic goals.

BRUSSELS GREENBIZZ

INCUBATOR ENERGY EFFICIENCY

Environmental Incubator, Workshops and Of fices rue Lefèvre in Brussels WINTER

PREHEATING OF EXTERNAL AIR

DAY

Optimization of solar gains

resulting in a building that requires little energy for space heating or cooling:

22°C

6°C

Application of Passive Building criteria,

internal heat gains

0°C

16°C

»» Highly efficient thermal insulation: K18

ROTARY HEAT EXCHANGER

105 KW GAS HEATING

convector

60°C

- high insulation - air tightness - triple glazing

»» Annual heat demand of 11,9 kWh/m² »» Extreme air tightness (n50 = 0,6) »» Heat recovery via heat wheel

SUMMER DAY

HYGIENIC VENTILATION

Free cooling

»» Free cooling / night cooling »» Thermal inertia of exposed concrete »» Glazed surface limited to 45% of total

thermal mass (free cooled) radiates lower temperature

efficient lighting, controlled by presence detector + daylight compensation

ROTARY HEAT EXCHANGER OFF

FORCED VENTILATION

facade surface individual control over blinds and opening windows

- automatic opening links to BMS - natural air supply

- horizontal slat blinds controlled by Building Management System - opening windows manual

SUMMER NIGHT Night cooling

»» Fixed and mobile exterior sunshading »» Highly efficient lighting (presence and brightness sensor) As explained in concept, Greenbizz does not specifically focus on compactness criteria, lightening that constraint during design:

18°C thermal mass cooled nightime

Extra efforts have therefore been made - automatic opening windows controlled by Building Management System - natural air supply

AIR EXTRACTION THROUGH ROOF VENT

(extra insulation for example), implying an economic effort, but considered worthwhile in light of the pertinence of the built form.

- thermal inertia

BRUSSELS GREENBIZZ

GREEN MANAGEMENT

Environmental Incubator, Workshops and Of fices rue LefĂ¨vre in Brussels Rainwater from Incubator roof is recycled in three tanks for toilets and maintenance. The workshops's green roof with only native vegetation serves as both a buffer volume in case of heavy rains, and as a breeding ground for biodiversity.

WATER & GREEN MANAGEMENT

All green management follows two funda-

evaporation via green roof

roof rainwater collection

mental principles: first the use of only native species such as indigeneous grasses, flowering hedges or meadows, and second low

INCUBATOR

maintenance avoiding all use of chemical

substances. MEETING ROOMS +1

WORKSHOPS

rainwater fed toilet blocks water saving fixtures

AGORA +0

+0 storm basin overflow to sewerage

rainwater tank overflow to sewerage supply for service valves 20m3 20m3 20m3

180 m3

BRUSSELS GREENBIZZ

ENERGY PRODUCTION

Environmental Incubator, Workshops and Of fices rue Lefèvre in Brussels NZE

PHOTOVOLTAÏC CANOPY

Evolving logically from passive to Nearly Zero Energy (NZE), the incubator roof is overhanged with a photovoltaïc canopy including 1.551m2 m² of solar panels (total capacity 240,75 kWc). This provides an annual output high enough

WORKSHOPS

to cover the incubator's electricity needs. N

Energy efficient design implies annual consumption savings of about € 60 564, making for a total payback period of approxiWORKSHOPS

Annual energy consumption can be broken

AT UB

INC

mately 7 years.

down as follows: electricity: 18MWh = 7, 26kWh/m² gas: 104 MWh = 42 kWh/m²

WORKSHOPS

Annual energy production: solar electricity: 204,9 MWh

BRUSSELS GREENBIZZ

BUILDING PROGRESS

Environmental Incubator, Workshops and Of fices rue Lefèvre in Brussels

Brussels Greenbizz is on site since September 2015. Embracing a myriad of intertwining criteria, the inherent complexity of the issue of sustainable thinking has been welcomed and integrated during genesis, the design process obviously taking its cue from Aeropolis and Elia but with one fundamental shift prompted from day one by the citydev.brussels’s competition brief: Brussels Greenbizz's key challenge is not just about kw energy, it is about triggering positive social and economic outcomes in a part of town simmering with potential … so, it is about bringing to light, fostering, and harvesting human energy , taking into account the global nature of the social, contextual, economic and temporal aspects concerned, visible only through the all encompassing lens of empathy.

BRUSSELS GREENBIZZ Environmental Incubator, Workshops and Of fices rue Lefèvre in Brussels

EXEMPLARY BUILDING AWARD Brussels Greenbizz has been awarded the Brussels Exemplary Buildings Award, a program encouraging (and subsidising) ‘best in class’ projects, according to four criteria of equal importance: energy efficiency, low environmental impact, controlled financial framework including reproducibility, and architectural quality combined with positive urban impact.

BRUSSELS GREENBIZZ Environmental Incubator, Workshops and Of fices rue Lefèvre in Brussels

FACADE : ALUMINIUM & KERTO

BRUSSELS GREENBIZZ Environmental Incubator, Workshops and Of fices rue Lefèvre in Brussels

TYPICAL OFFICE SPACE

BRUSSELS GREENBIZZ Environmental Incubator, Workshops and Of fices rue Lefèvre in Brussels

TYPICAL WORKSHOP SPACE

timetable

client

2012 - competition 2013 - building permits 2015 - delivery program

architect

Masterplan and Nearly Zero Energy construction Low Energy construction

structural engineer

surface (phase 1)

SETESCO

8 320 m² above ground level

service engineer

surface (phase 2)

ISTEMA - FTI - CENERGIE

4 920 m² above ground level

PEB

location

ISTEMA - FTI

Rue Dieudonné Lefèvre, 37

acoustics

1020 Brussels, BE

DAIDALOS PEUTZ

budget (phase 1)

health and safety coordination

12 058 000 €

HEALTH & SAFETY

partenaires

main contractor

CEI-de meyer facades

JONCKHEERE PROJECTS Photos (c) laura claeys, sabine leribaux, r callebaut, elodie leonard Booklet (c) 2015 architectesassoc. W www.architectesassoc.be E architectes@architectesassocies.be A avenue de l'observatoire 11e 1180 brussels T +32(0)2 410 76 77

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