ACOUSTIC INSULATION OF A CROSSFIT ROOM USING GRANAB TECHNICAL FLOORING IN THE EOLE EVANGILE TRIANGLE, PARIS

INTRODUCTION:

Linkcity Ile-de France (formerly Sodéarif) is a property development subsidiary of Bouygues Bâtiment Ile-de-France in association with the architecture and urban planning agency TVK. It has been several years since they were the winners of the ''Reinventer Paris'' competition, they have had the objective of remodeling the Eole Evangile Triangle in the 19th District of Paris.

This project is an ambitious proposal that combines quality of life and environmental requirements to make the Eole Gospel Triangle the first district with zero carbon emissions in the capital. The architecture and urban planning agency TVK together with the landscaper OLM have shaped this "fertile island" around a large central garden, resulting in a multifunctional program of more than 34,000m2 that will contribute to the creation of an innovative economic and social ecosystem.

• More than 400 new homes.
• Two residences for students and young workers with 150 studios.
• An apartment-office-hotel concept with 125 lofts.
• More than 7300 m2 of offices.
• A covered sports center of 5000m2, which includes a youth hostel with more than 200 seats and numerous sports areas.
• A coffee-coworking space
• ...

The block of buildings is uniquely designed around a 6500m2 garden that shapes this new Parisian ecosystem.

The objective has been always to build an exemplary urban model from the environmental point of view on a scale of an entire district, complying with the requirements that the City of Paris has set for 2050.

Noise pollution has been treated as a topic of great importance throughout the project, and it is in this section that AMC Mecanocaucho® has been able to contribute by supplying the technical and acoustic flooring Granab®.

The floating floor Granab® is an innovative system conceived in Sweden, made up of steel profiles and anti-vibration elements for an effective isolation of impact noise and airborne noise. In addition to its acoustic isolation properties it also provides the possibility of passing installations and cables in a simple way below the floating floor.

The assembly of said floor follows an installation method that must be considered:

INFORMATION OF THE BUILDING

In this case, AMC Mecanocaucho® has been chosen to supply the technical floor Granab® to face the challenge of treating the acoustics of a room which has an area of 147m2 located in the covered sports center. The function of this room is mainly intended for the practice of crossfit exercise classes.

For this, and following the study carried out by the Vincent HEDONT acoustic cabinet, the points defined by the NFP 90-207 standard regarding the acoustics of sports halls have been considered.

The problem of this type of rooms is usually the following:

• Direct transmission of airborne noise through the ground.
• Sound transmission through the façade.
• Horizontal transmission of vibrations between adjoining rooms on a common slab.
• Tactile perception of vibrations.
• Generation of noise due to vibration of the light interior walls of the rooms.

For this reason, it is very important to separate the floor in order to avoid this type of transmission and ensure good acoustic insulation of the room.

As in other projects, AMC Mecanocaucho® has been following the process from the early project design phase all the way up to the installation. In this period, in order to recommend the most appropriate positioning of said floor, CAD files imported into AutoCAD have been used. In this way it has been possible to simulate the real positioning of the floor Granab® and foresee its layout before the installation on site.

PICTURES OF THE INSTALLATION OF THE GRANAB FLOOR IN THE CROSSFIT ROOM.

s

INSTALATION FORMATION, ROLE OF THE GRANAB INSTRUCTOR.

AMC Mecanocaucho® offers the possibility of providing installation training through a Spanish installer who has carried out many projects with the technical and acoustic flooring GRANAB®. This trainer explains the installation methodology and tips to gain productivity.