Last Uploaded: April, 2011

Shinmarunouchi Building

Architectural DataFeaturesCasbee ScoreTechnical Details建物リストに戻る
Office perimeter zone
Office perimeter zone Eaves and fins on exterior walls of standard floors for sun shielding effect Standard floor layout Green rooftop in harmony with nearby Imperial Palace
Unified appearance of exterior walls for concerted streetscape      

Special Features

Q-1 Indoor Environment
  • Air barrier system
  • Sun shielding with vertical fins/horizontal eaves + use of Low-E glass
  • Electric blind system
  • VAV controllers installed approximately every 50m2
  • Outdoor air cooling system (2.5 times more air supply compared to standard volume)
  • Lighting intensity control with daylight sensor
Q-2 Quality of Service
  • Raised access floor for future layout modification
  • In compliance with Building Standards for Mobility Facilitation (recommended level)
  • Office ceiling height of 2.85m
  • Floor height of more than 4.5m
  • Seismic capacity 50% higher than building code requirement
  • Use of vibration control system for improved occupancy comfort during strong wind
  • Live load of 4,900N/m2
  • Facility design that improves system redundancy functions and ease of future upgrading (replacement space/duplicated main pipe work)
  • Backup duct inside pipe shaft
Q-3 Outdoor Environment on Site
  • Attention to aesthetics from main viewpoints of surrounding area
  • Open space created by pilotis and end-to-end corridor providing enhanced amenities for urban activities
  • Rooftop and wall greenery
LR-1 Energy
  • Sun shielding structure and air barrier system for thermal load reduction
  • Use of natural energy resources with outdoor air cooling system and daylight utilization
  • Reduction in water conveyance load with supply system using large temperature difference and VWV-VM
  • System control with optimal energy efficiency using automatic control/adjustment supporting tools
  • Use of solar power generation system and high-performance transformers
LR-2 Resources and Materials
  • All main faucets: water-saving type/Sink: automatic faucets
  • Recycling of rainwater, A/C condensation water and greywater
  • Recycling of waste materials from demolished buildings
  • Zero-emission initiatives for construction industry
  • Gas fire control equipment with nitrogen gas (N2); with no Halon agent
LR-3 Off-site Environment
  • Elimination of air pollution source by utilizing cooled water and steam from district cooling/heating facility
  • Anti-odor filters for kitchen exhaust fumes and freezer for organic kitchen waste
  • Process load reduction in public sanitary sewer with use of greywater system
  • Load reduction in public sanitary sewer with use of rainwater storage tank
  • Waste processing room for segregated garbage collection

Other Features

  • Alumite-treated exterior aluminum window sashes with no hexavalent chromium
  • External vertical fins on upper floors for radio reflection interference control
  • Interior materials with low VOC emissions
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These cases are described based on assessment results obtained using CASBEE.
CASBEE is a method for rating the environmental performance of buildings using Building Environmental Efficiency (BEE) as an indicator, which is based on the results of separate scores obtained for Q-1~Q-3 (Quality) and LR-1~LR-3 (Load Reduction).