• Document: TAMA Art University Library
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TAMA Art University Library Tokyo, Japan - By: Toyo Ito, 2007 Architect Toyo Ito Born in Japan – June 1, 1941 Recently won the Pritzker Architecture Prize 2013. Known for his innovative designs. Concrete Designs Hachioji Tokyo, Japan TAMA Art University Campus Campus North Gate entrance Site’s Data The fastest wind speed averages from 11 to 23 knots 14% of the year. 23 knots ~ 26.5 mph 26.5 mph winds are defined as strong breeze and/or high winds, enough to get a red warning flag in costal zones. Beaufort number = 6 - 7 Site’s Data Most of the wind loads come from the North to South direction. Wind frequency is 1-132 hrs and from 12 to 24 knots. 1 knot = 1.15 mph January and December have the highest wind frequency. Jan – Feb - Mar Apr – May - Jun Jul – Aug - Sep Oct – Nov - Dec Site’s Data Site’s Data Site’s Data Original Idea Toyo Ito’s main idea was to have a “Cave” like building. This concept can be related to the metaphor for the process of learning and enlightenment, a common concept in Buddhism. Due to budget issues the building was moved to the surface, keeping the same arches and structure ideas. The arches were meant to resemble stalactites, following the original “cave” idea. New Concept The library was built above ground, which had an opposite outcome from the original idea . Open Plan The arches allow for an open plan which allows continuity through the space. Seamless Connection The architect decided to keep the original slope of the site. The slope makes a seamless connection between the interior and exterior spaces. Design Feature The library is one of the buildings seen at the main entrance, (North). The library serves as a communal space for visitors at the first level. There is a bus terminal across the street facing the library. Many people are attracted to this area after being dropped off. The visitors can use the café, and public areas with out necessarily accessing the library. Design Feature Takes advantage of the natural environment Introduces natural light through large pieces of glass. Branches of large trees offer shade for interior spaces General Information Structure systems: Structure steel, concrete mixed structure and reinforced concrete Scale: 2 stories, 1 semi-basement Site Area: 1,713,451.68 sq. ft. ~ 159,184.87m2 Building Area: 23,945.28 sq. ft. ~ 2,224.59m2 Total Floor Area: 60,702.64 sq. ft. ~ 639.46m2 The “Grid” Emergent grid Distorted module The curved grid lines distribute the load evenly to the 56 intersecting points, created by the arches. There is 166 arches. They vary in width from 1.8 to 16 m. The same grid is followed on both levels. The height ranges from 8.5’ to 19’. Unique spaces are created by the combination of three or more arches, which then become part of the program. 1st Floor Plan 1st Floor Plan - Program 1-North Entrance 2-Café Area 3-Theater Area 7 6 9 4-Arcade Gallery 5-Front Desk 5 6- Lounge 7-Video Stand 4 8 8-Computer Lab 3 1 10 9-Offices 2 10-South Entrance Arcade Gallery Café Lounge Area Multi-Media Reading Area 2nd Floor Plan 2nd Floor Plan 1-Open Stacks 2-Stairs 10 2 3 3-Copy Center 4 4-Office Area 5 5-Front Desk 1 7 6-Computers 7-Close Stacks 8 8-Private Seating 6 9-10-Public Table 9 Areas Computer Lab Open Stacks Private Seating Lounge Area 3-D Models Effects that the arches bring The intersection of the rows of arches help articulate softly separated zones within this one space. Shelves and study desks of various shapes, glass partitions that function as bulletin boards, etc., give these zones a sense of both individual character and visual as well as spatial continuity. The spatial diversity one experiences when walking through the arches different in span and height changes seamlessly from a cloister-like space filled with natural light, to the impression of a tunnel that cannot be penetrated visually. Arches 12 mm steel plate reinforced with 75 mm wide flange. The steel is then covered with concrete which prevents buckling and and serves as fireproofing. All together the wall is about 200 mm reinforced concrete wall. At the intersection points, they form a cross-shape which is 400 mm thick. Materials Reinforced Concrete For a strong, ductile and durable

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