Contractor

Name : VILLE DE TAVERNY

Contact : 01 30 40 27 21

 https://www.ville-taverny.fr/

Construction Manager

Name : MAAJ ARCHITECTES

Contact : maaj[a]maaj.fr

 http://www.maaj.fr/

Stakeholders

Function : Others

PRAXYS PAYSAGE

agence[a]praxys-paysage.fr

 http://praxys-paysage.fr/


Landscaper

Function : Other consultancy agency

Bureau Michel Forgue (BMF)

bureau[a]bmf-conseil.fr

 https://www.bmf-conseil.fr/


Economist

Function :

BATISERF

agence[a]batiserf.com

 https://batiserf.com/


Structural design office

Function : Thermal consultancy agency

WOR Ingénierie

contact[a]bet-wor.com

 https://www.bet-wor.com/


Fluid design office / VRD / HQE

Function : Structures calculist

Acoustique Vivié et Associés (AVA)

contact[a]acoustique-vivie.fr

Acoustic study office

Contracting method

Separate batches

Type of market

Global performance contract

Energy consumption

• Primary energy need : 117,10 kWhep/m².an
• Primary energy need for standard building : 124,80 kWhep/m².an

Calculation method : RT 2012

Breakdown for energy consumption : Heating: 27.5 kWh EPConditioning: 0 kWh EPECS: 18 kWh Lighting: 20.3 kWh Ventilation auxiliaries: 50.9 kWh Hydraulic auxiliaries: 0.3 kWh EP

Real final energy consumption

Final Energy : 117,10 kWhef/m².an

Envelope performance

• Building Compactness Coefficient : 0,26

Indicator : EN 13829 - q50 » (en m3/h.m3)

• Air Tightness Value : 1,00

Systems

Heating system :
• Condensing gas boiler
• Heat pump
• Radiant ceiling
Hot water system :
• Individual electric boiler
Cooling system :
• Canadian well
Ventilation system :
• Double flow heat exchanger
• Canadian well
Renewable systems :
• Energy recovery from waste
• Heat pump
Solutions enhancing nature free gains :

Toiture végétalisée

Urban environment

• Land plot area : 3 454,00 m²
• Built-up area : 664,00 %
• Green space : 1 737,00

The town of Taverny has the particularity of being crossed by the A115 motorway which divides the town in two. The southern part made up of the Beauchamps sector is then disconnected from its center by this artery. This part of the city therefore suffers from a lack of infrastructure and needs to be reinvested. The operation is part of the process of upgrading this sector.

The plot allocated to the project is directly affected by this issue. It is surrounded on one side by a stretched and quiet residential area and on the other by the dense and noisy A115. From then on, our position was to offer a place which offers an interior quality of life symbolizing places of care like the old cloisters. Coupled with the project owner's ambitions in terms of ecological exemplarity, we were able to carry out a project whose structure and facade are expressed in wood

Construction and exploitation costs

• Cost of studies : 348 530 €
• Total cost of the building : 3 231 887 €

Comfort

Health & comfort :

We considered this medical center as a precious, calm place, where the landscape project pays particular attention to the visitor's journey and creates the first level of intimacy. The use of a vertical wooden frame on the facade reinforces this desire to protect treatment areas by creating a natural setting for the building.

The intervention built, is based on functionality, essential for this type of program. The square plan results from a hierarchy of the level of privacy necessary for each place. The patio, at the heart of the building, provides covisiblity between the common spaces and natural lighting of all the circulation. On sunny days, it becomes an extension of the waiting rooms, a quiet outdoor place for patients and doctors. Its cross shape can accommodate the waiting rooms. Their locations, which are essential in the patient referral system, are visible from all the traffic of the pole.

On the outskirts, the consultation rooms surround the project. We have sought a uniformity of all the places of care in order to guarantee the scalability and the versatility of the whole. In addition, the dividing walls are not structural, which makes it possible to completely reorganize the spaces. We have the intuition that the project is not an end in itself, but rather the beginning of a story and a necessary appropriation for the proper functioning of a building. We want, through our approach, to allow our buildings to stand up to time.

Acoustic comfort :

With regard to the isolation of facades:

The plot is under the direct influence of the Rue d'Herblay, classified as category 4, and especially the A115 motorway, classified as category 2 (according to the decree of 30/05/1996, modified on 23/07/2013). Thus the acoustic performance of the envelopes of the premises will have to be reinforced from the point of view of their acoustic insulation: up to 38dB depending on the orientation of the premises. The criteria are relatively restrictive, and can be met with facades at RA,tr≥38dB, equipped with consistent glazed or opaque infills. Lightweight facades will be fitted with full-surface non-threaded lining (i.e. interrupted by internal vertical and horizontal partitions). The ventilation system shall be double flow. These criteria are before the results of in situ measurements.

 

In terms of internal acoustic insulation

The project provides for a homogeneous distribution of the entities according to their uses. The targeted isolations between common premises (office, consultation, care, etc.) will be DnTA≥42dB. DnTA≥27dB insulation will be retained for the common rooms with circulation. For this, partitions at RA≥50dB (thickness according to structural or not) will be provided between rooms, 42dB on corridor associated with doors and glazed walls at RA≥30dB. Isolations between levels will be achieved by mixed wood concrete floors on a CLT base associated with false ceilings in the ground floor pH. Impact noise will be dealt with by the floor coverings associated with the mixed floors above, possessing an index ∆Lw≥19dB in order to allow compliance with impact noise limited to 60dB in the reception areas. The floor coverings in the premises (and corridors, etc.) will be flexible with an integrated underlay, hard floors glued to a resilient screed.

 

In terms of acoustic correction :

All the premises will receive effective absorbent treatments, so as to ensure excellent comfort and to limit the ambient interior noise levels as much as possible, particularly in the premises receiving the public. The large common areas of the hall and reception will receive very effective acoustic absorption treatments, for example: disjointed elements laid floating on the underside of the high floor, in order to conserve the available height. This will be an obligation of result that we will maintain throughout the project in order to guarantee a very positive first impression and that visitors will feel comfortable in these premises as soon as they enter. The working areas will also receive absorbent elements in the ceiling, for example radiant heating panels which will be perforated, masking a layer of mineral absorbent on the back side, these elements will be laid floating under the high floor (ceiling), which will maximise their effectiveness. The large rooms (refectory/meeting rooms) will be fitted with additional acoustic correction wall panels.

 

Noise level of technical equipment:

The technical equipment will receive acoustic treatments adapted to the nature of the networks, such as: silencers on the ventilation networks, anti-vibration pads under rotating or vibrating equipment, treatments on the networks between rooms (running or in circulation as proposed in our project), linings in the technical rooms... The technical rooms are planned in a 6-sided concrete structure. The heat pumps (depending on the evolution of the project), could be located under the roof in LT in a light 'box in the box'. The assumptions taken into account at this stage, in terms of standardised sound levels LnAT for equipment noise, are Offices, consultation,...: LnAT£35dB(A), Reception hall / circulations: LnAT£40 to 45dB(A).

 

Environmental protection:

Externally, the maximum noise levels generated by the project's technical equipment will be based on the residual noise levels of the site. Regarding the limitation of noise levels in the environment, the project is obviously subject to the decree n°2006-1099 relating to the limitation of noise in the neighbourhood (for the protection of the environment). It is for this reason that measurements of the initial state of the site's noise environment will have to be carried out as soon as the winning team is appointed (carried out by a service provider appointed by the project owner, based on specifications that we will draw up as soon as they are appointed). The consequences of the results of these measurements are therefore unknown at this stage.

 

GHG emissions

• GHG in use : 6,00 KgCO₂/m²/an