Keio University Hiyoshi Campus Collaboration Complex

Last Uploaded: April, 2011


Top light (Passage of Knowledge) (Photograph: Mitsumasa Fujitsuka)

Special Features

Q-1 Indoor Environment	Soundproofing features of Fujiwara Hiroshi Hall including six-sided floating floor structure Top lights Minimum 2.0% daylight in training/accommodation rooms JIS/JAS rated F☆☆☆☆ materials used throughout Ventilation volumes in individual training/accommodation rooms designed at 40% above Building Standards Act (60 - 120 CMH per room) Smoking prohibited inside building except in designated smoking booths on training/accommodation floor
Q-2 Quality of Service	Heart Building Law compliant Excellent earthquake protection Seismic isolation structure Tiled precast concrete boards for exteriors Main internal finishes designed to last at least 20 years before replacement Water-saving fixtures and fittings Multiple heat sources in heating/cooling system (gas and electricity) Ceiling height = 4.15 m in school section, 3.6 m in training/accommodation section Minimum floor load = 4,900 N/m² in school section Spare capacity in vertical power and data cable ducts
Q-3 Outdoor Environment on Site	Sunken garden with open plaza for large gatherings, on the grounds and to the subway station entrance. Facilities for engaging with the local community on first and second levels of building Waterscape incorporated into Sunken Garden Pedestrian routes along southern road edge of site area Japanese keyaki trees along Tsunashima Kaido
LR-1 Energy	Cogeneration system Ice thermal storage system BEMS Natural light from top lights External ventilation cooling system
LR-2 Resources and Materials	Main toilets with automatic flush, water-saving toilets and recorded flushing sounds. Electrosteel framing members such as beams and studs Blast-furnace cement piles Recycled materials Nitrogen-based inert gas fire extinguishers
LR-3 Off-site Environment	Energy-saving equipment and facilities Use of ventilation in cooling system to minimize heat source load Peak shifting via ice thermal storage Kitchen exhaust ported through to rooftop Waste storage facility below ground level to contain odors

Other Features

N/A

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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).