A City of Justice for the City of Light Tribunal de Paris, Paris Pierre Louis Fortier, Director, Bouygues Batiment Ile de France Amaury Greig, Architect, Renzo Piano Building Workshop
WHY A NEW COURTHOUSE Lack of space in the former courthouse (courts dispersed across 4 other sites in the city) Age of the facilities Inability to align with increasingly stringent safety regulations Need to improve the experience of citizens interacting with the justice system Need to improve the working conditions of magistrates and other employees working at the Courthouse Need for dignified prison conditions Implementation of new technologies Evolution of security requirements Council on Tall Buildings
AIM OF THE PROJECT Regroup on a single site all the judiciary of the Parisian courts Provide a state of the art facility for the 550 magistrates, 1,300 government officers, 650 other people working in the building Increase the number of the courtrooms from 26 in the former building to 90 in the new one to welcome appropriately the 6,000 daily public attendees Welcome the 8,500 people entering the building daily in the safest conditions Increase the security of the Courthouse Provide dignified conditions for detainees Provide a full access to the facilities for disabled users Council on Tall Buildings
PUBLIC PRIVATE PARTNERSHIP Public Authority (occupant): PPP contractor: Property developer: Design & Build Architect: Structural engineer: MEP engineers: Main contractor: French Ministry of Justice ARELIA Bouygues Bâtiment PPP Renzo Piano Building Workshop Setec TPI Setec Bâtiment, Bérim Council on Tall Buildings Bouygues Bâtiment Cost of 2,4 bn over 27 years (incl. tax) CAPEX of 605 m (excl. tax) Turnover of 508 m (excl. tax) 35 m 427 m FM Facility Management: Bouygues Energie & Services Turnover of 735 m (excl. tax)
THE SITE A former train station and National Rail maintenance facility redeveloped into a mixed use neighbourhood and park The Courthouse is located at the North of the development area on the edge of the city ring road. Railways (Saint Lazare station) Rue Cardinet Paris border (ring) Martin Luther King park Council on Tall Buildings New Paris Courthouse Avenue de Clichy
CLIENT REQUIREMENTS Separation of circulation flows between public, magistrates and detainees Flexibility and modularity Natural light in every space (courtrooms, offices, detention areas, ) Sustainable development challenges ( Plan climat Paris ) Highly secured building (terrorist threat) Council on Tall Buildings
THE PROJECT Bastion building 1 floor for the kitchen of the restaurant 3 floors for the duty office of the prosecutor 2 floors dedicated to FM teams 1 basement floor for the storage of sealed evidences 2 basement floors housing the prison (205 cells) 1 basement floor for the storage of sealed evidences Council on Tall Buildings Restaurant High Rise 26 office floors for magistrates 1 library at level 30 1 café and snack bar at level 19 Main corridor at level 8 Podium 5000 sqm lobby (28m high atrium) 3 double height floors (courtrooms) 1 office floor 2 mezzanine floors Conference hall (220 seats) 2 parkings in the basement
SCHEDULE 2012 2013 2014 2015 2016 2017 2018 02/15/2012: signature DESIGN EXCAVATION FOUNDATION STRUCTURAL WORKS FACADES M&E EQUIPMENTS INTERIOR WORKS TESTING Council on Tall Buildings 08/12/2017: completion TRANSITION 04/16/2018: opening
SUSTAINABLE DEVELOPMENT Solar energy 2 150 sqm of photovoltaic pannels 175 MWh per year electricity production Heating and cooling Systematic use of radiant ceiling pannels for the offices and meeting rooms Over 1000 offices concerned Up to 15 % energy saved Natural ventilation Public lobby (5000 sqm) is naturally ventilated when external temperature is 14 C 24 C 3 4 months per year 120 150 MWh of electricity saved Plantations Council on Tall Buildings 10 000 sqm of shaded terraces 3 000 m 3 of topsoil 320 trees (oaks, birches) 7 000 low growing shrubs 5 ornemental ponds
TECHNICAL ISSUES Building information modeling Design and construction fully completed in BIM 285 models generated Pre stressing Used to achieve the «wasp waist» at the bottom of each of the 3 blocks of the tower (levels 9, 19 and 29) Council on Tall Buildings Slip forming Used for the construction of the 3 concrete cores of the tower 1,60 m per day achieved
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