THE MODERN APPLICATION OF
TOKYO
WOOD BRACKET SYSTEM
OF
ANCIENT JAPANESE
ARCHITECTURE IN
YUSUHARA WOODEN BRIDGE MUSEUM
Tokyo wood Bracket
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unique feature of Traditional Japanese arch
essential support to the timber frame struc
eaves of traditional Japanese buildings
a combination system of weight bearing bloc
and bracket arms (hijiki)
fitted together by joinery alone without gl
fasteners
WHAT IS THE
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ORIGIN
OF TOKYO BRACKET SYSTEM ?
Originated from ancient China
Notable architectural component
call Dou Gong (wood
bracket).
• earliest record of the use of
Dou-Gong
in Zhou Dynasty
• widely used in the Spring and
Autumn Period
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In Song Dynasty , form fully developed,
style unified , size standardized
number of layers used depends on
importance
of the building
Also as a status symbol
After Song Dynasty , Dougong become more
ornamental
6th century , introduction of Buddhism
influences Japanese architecture
large scale temple using complicated
HOW DOES IT
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FUNCTION
AS A STRUCTURAL SUPPORT
FOR BUILDING ?
Structural support for building
Support weight of horizontal beams
that span
the vertical columns by
transferring the weight
on horizontal beams over a
larger area to the
vertical columns.
• To support roof’s weight
• The further the eaves extend, the
more complex
AT IS THE
CONSTRUCTION
METHOD OF TOKYO BRACKET SYST
• Wood is the main material
• Multiple interlocking
bracket sets formed by
placing block (Masu) on a
column to provide base for
the bow-shaped brackets
(Hijiki) that support the
beam or another bracket
above it.
Yusuhara Wooden Bridge Museum
• Kengo Kuma & Associates
• Located at Yusuhara, town in the Kochi prefecture,
Japan
• a covered gallery pedestrian bridge that connects
a hotel and a spa, which had previously been
separated by a cliff and a road.
• 154-ft. span
• an interlocking beams system developed.
• Alternating arrangement of interwoven wooden beams
creates a construction which floats in the air,
supported by a single central pillar.
• Long beams rest above shorter ones , whole
structure tapers to a point at a slender central
column
• The bridge evokes the traditional construction method
of tokyo wood bracket system employed in Japan
• By repeating this method persistently to the scale of
a bridge, it creates
a new expression of architecture while having its
authentic Asian appearance.
THANK YOU
References
•
Wiborg,RS.(2010).Chinese Dou Gong Brackets.1-3.Retrieved from
http://www.richardwiborg.com/Chinese_Dou_Gong_Brackets
• Zhu,EC.,Chen,ZY.,Pan,JL.,Wang,LN.(2010).Finite Element
Modelling Of The
Structural Performance Of Dou Gong Brackets Of YingXian Wood
Pagoda,
June142,2.Retrieved from
http://www.ewpa.com/Archive/2010/june/Paper_142.pdf
• (2013).Dougong.[website] Retrieved from
http://en.wikipedia.org/wiki/Dougong
• (2013).Japanese Architecture.[website] Retrieved from
http://en.wikipedia.org/wiki/Japanese_architecture
• (2013).Tokyō.[website] Retrieved from
http://en.wikipedia.org/wiki/Toky%C5%8D
• S,Lei.,Y,Guang.,Thetford,A.,Obregon,A.(2012). Yusuhara Wooden
Bridge Museum.[website] Retrieved from
http://faculty.arch.tamu.edu/anichols/index_files/courses/arch6
31/case/2012/YusuharaMuseum.pdf
• Kuma,K.,Carder,N.,Derkowski,K.,Pabila,J.(2012). Yusuhara Wooden
Bridge Museum-Red cedar bridge links traditional and
contemporary expressions of Asian architecture,Summer2012,23-
Image Resources
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http://img5.blogs.yahoo.co.jp/ybi/1/8f/21/cdblstb/folder/1573356/img_15
73356_37876884_0?1214745578
http://www.gjzw.net/Images/UpFile/2010424223130535.jpg
http://file21.mafengwo.net/M00/29/89/wKgB3FD2HX-AIN8LAArVWCBw2s31.groupinfo.w600.jpeg
http://images.china.cn/attachement/jpg/site1000/20080325/000bcdb95f1709
5311065c.jpg
http://media-cdn.tripadvisor.com/media/daodao/photos/03/60/58/5a/caption.jpg
http://www.nipic.com/show/1/48/b7fd2454e9d1b590.html
http://www4.ocn.ne.jp/~kiyomin2/tokyou.html
http://arts.cultural-china.com/en/83Arts12591.html
http://www.gooood.hk/_d273332980.htm