AA presentation

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 • • • • • • • • •

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