Viborg City Hall
From vision to execution
Vision The City Hall will provide the settings for a place where visitors and citizens will meet the official Viborg and the municipal service characterised by professional staff, dialogue and mutual respect. We are to create a house with a ‘high ceiling’ which through its architecture and the interior environment: Supports the common values of Viborg Municipality Radiates job satisfaction and a welcoming atmosphere Promotes development, innovation and unity Creates room for interdisciplinary and project based co-operation Expresses openness and quality Ensures flexibility and the possibility for reorganisation The building must be accessible for disabled people, environmentally friendly and energy efficient. It must also support a good working environment for knowledge exchange focusing on safety, health and job satisfaction. The outdoor environment supports the functionality of the building. External partners Architects: Henning Larsen Architects A/S Engineer: COWI A/S Landscape: LIWPlanning Building owner’s consultant: Bascon A/S
Internal partners Steering Committee, Project Management, Building Committee, Engineering Committee, Design and Interior Committee, local user groups, User Process Group and other ad hoc participants. Skylight Canteen
Meeting rooms
Parking and the City Hall Square
Main entrance
Work area
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Deliveries
Multi-purpose conference room
Indre Ringvej
Architecture The City Hall The City Hall is a six-storey building where the lower floor – the ‘arms’ of the building – are pushed forward so that it embraces the City Hall Square and the landscape and welcomes visitors, citizens and employees. The ground floor and the first floor facade consists of glass panels and closed vertical frames. The facade on the lower floors generates a toned down play of lights which highlights the distinctive relief effect of the upper parts of the facades.
Viborg City Hall from the City Hall Square
The roofs on the covered parking areas and on the building’s ‘arms’ are covered with sedum moss to interact with the landscape. The landscape The 43,200 m2 City Hall site comprises the City Hall Square and Park and the partly covered parking area. The City Hall Square is covered with a pattern of concrete slabs, granite and asphalt. The main entrance of Viborg City Hall
The green areas function as a neighbour buffer zone and as an independent recreational area for the citizens.
Existing trees
The City Hall Square RÅDHUSPLADSEN
Existing trees TheRÅDHUSPARKEN City Hall Park
The City Hall Garden RÅDHUSHAVEN
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Interior design With focus on flexibility, the employees can alternate between team work in the open plan office area and working concentrated in smaller rooms. Conversation rooms – confidential conversations (internal/external) Flexrooms – concentration, project room – short-time workplace Kitchenettes – sharing professional and social knowledge Lounge areas – informal meetings The City Hall is divided into a citizens’ zone, a case workers’ zone and an employees’ zone
Multi-purpose conference room Multisal Flexroom Flexrum Kitchenette Tekøkken Conversation Samtalerum room Public computers/Waiting Borger-PC’er / Venteområde area Service area Ekspeditionsområde Uformellemeeting mødeområder Informal areas
Printing Kopirum room
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Toilets, Kitchenette, Technical room
Work area
Meeting room – shared
Break out area Main stairs
Art, colours and furniture The process concerning the final arrangement, the choice of colours, art and furniture is carried out concurrently with the construction of the building. The final choices must support the architecture and the aesthetics of the building.
Facts • Area 19,363 m2 •
850 workplaces
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31 flexrooms
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11 conversation rooms
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27 meeting rooms
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17 printing rooms
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multi-purpose conference room seating 200 people
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canteen with a roof terrace on the fifth floor
Atrium viewed towards the stairs with integrated seating
The atrium from the second floor 5
Sustainability Ground water cooling By use of a heat exchanger, the ground water is used for cooling in the summer and for heating the building in the winter. In a closed loop system, three ground water boreholes are used for the extraction and drainage of ground water.
Termoaktivt dæk slab Thermo active
Radiator Radiator
65oC
35oC
35oC
15oC
15oC
Dry cooler Tørkøler
Thermo active constructions Thermo active constructions are in principle like a floor heating system with built-in cooling and heating pipes.
District heating Fjernvarme
El-drevet Electricallyvarmepumpe/ driven heat kølemaskine pump/chiller (spidslast) (Peak)
Varmedrevet Heat-driven varmepumpe/ heat pump/chiller kølemaskine (Base load) (grundlast)
During the heating period, the thermo active constructions will, together with radiators by the facade, ensure that the rooms are heated.
Grundvand Ground water
During the summer, the thermo active constructions will, together with the ventilation, cool the rooms.
Acoustics Metal lamella ceilings are 100% sound absorbing because of acoustic baffles. • • •
Lowered ceiling Acoustic baffles Floor Levelling layer with cooling and heating tubes Concrete slab
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The parapets and the cores of the building have been covered with high-acoustic sound-absorbent material. Sound-absorbent membranes are used as flooring underlay and the corridors are carpeted.
Natural ventilation The building primarily has natural ventilation in the open plan offices, the atrium and the flexrooms. At times, when the natural ventilation is not adequate, the mechanical ventilation built into the roof is activated. Mechanical ventilation is installed in the other rooms in the building. The air flow is controlled by temperature and CO2 sensors. The air is changed 4-5 times per hour. The air intakes are placed under the concrete slab and above the lowered ceilings to minimise the noise from the outside and draft. Sun screening
Concrete slab Betondæk
Lowered ceiling
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South facing glass areas block 65% of the heat from the sun.
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Exterior sun screening
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Deep facade structure
BEST Energy Viborg City Hall is part of the EU project, Built Environment Sustainability and Technology in Energy, focusing on the efficient management of the energy consumption and production in the new city hall.
Air intake
The objective of the project is to reduce the energy consumption in the new city hall by 12% by using of Intelligent Communication Technology (ICT).
Photovoltaic solar panels Photovoltaic solar panels are installed on the south facing covered parking areas.
Photovoltaic solar panels
Energy consumption The City Hall’s energy consumption will be less than 50 kWh/m2 annually. Thus, the building’s energy consumption will be below that specified in the Danish Energy Class 1 for buildings. 7
Coming soon Her opføres: Coming soon
VIBORGCity RÅDHUS Viborg Hall Building owner: Bygherre:
Viborg ViborgMunicipality Kommune
Bygherrerådgiver: Building owner’s consultant:
Arkitekt/Totalrådgiver: Architect/main consultant:
BASCON A/S
HENNING LARSEN ARCHITECTS A/S Landskabsarkitekt: Landscape architects:
Ingeniører/Byggeledelse: Engineer/site management:
COWI A/S
LIWPLANNING
L I WPLANNING
Råhus: Carcase:
Byggemodning: Site preparation:
VILS ENTREPRENØRFORRETNING A/S
MT HØJGAARD A/S Murerarbejder: Bricklaying:
Lukning: Facade:
AE STÅLMONTAGE A/S
EMR MURER OG ENTREPRENØRER A/S
Hagen sv ej 54 • DK 9530 Støv ring • Tlf.+ 45 96 86 87 20 • Fax +45 9 8 37 32 7 9 E-mail:
[email protected] • www.ae-staalmontage.dk • www.kalzip.dk
Gulvarbejder: Floors:
Tømrerarbejder: Carpentry:
TØMRERMESTER THOMAS ANDERSEN
BUUS TOTALBYG A/S Malerarbejder: Decorating:
Smedearbejder: Smith work:
RICHARD THOMSEN A/S
MALERFIRMAET MUNK & NIELSEN APS Elevator: Lifts:
El og Belysning: Electricity and lighting:
EL-FIRMA KJELD JACOBSEN A/S
BRAVIDA DANMARK A/S Landskabsarbejder: Landscaping:
VVS og ventilation: Plumbing and ventilation:
BRØNDUM A/S
ARKIL A/S
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