1. THE MODERN APPLICATION OF TOKYO WOOD BRACKET SYSTEM OF ANCIENT JAPANESE ARCHITECTURE IN YUSUHARA WOODEN BRIDGE MUSEUM

2. Tokyo wood Bracket unique feature of Traditional Japanese architecture
essential support to the timber frame structure and
eaves of traditional Japanese buildings
a combination system of weight bearing blocks (masu)
and bracket arms (hijiki)
fitted together by joinery alone without glue or fasteners

3. WHAT IS THE 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
Reach its peak in Tang and Song dynasty

4. 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 techniques in wood
Japanese study architecture from Tang Dynasty

5. HOW DOES IT FUNCTION AS A 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
the tokyo be
highly resistant to earthquakes

6. WHAT IS THE CONSTRUCTION METHOD OF TOKYO BRACKET SYSTEM ?
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.

7. 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.
also  as  accommodations, work   and exhibition  rooms

8. 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
Columns on end merge with background surrounding

9. 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.

10. THANK YOU

11. References
Wiborg,RS.(2010).Chinese Dou Gong Brackets.1-3.Retrieved from
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
(2013).Dougong.[website] Retrieved from
(2013).Japanese Architecture.[website] Retrieved from
(2013).Tokyō.[website] Retrieved from
S,Lei.,Y,Guang.,Thetford,A.,Obregon,A.(2012). Yusuhara Wooden Bridge Museum.[website] Retrieved from
Kuma,K.,Carder,N.,Derkowski,K.,Pabila,J.(2012). Yusuhara Wooden Bridge Museum-Red cedar bridge links traditional and contemporary expressions of Asian architecture,Summer2012,23-24.Retrieved from 31/pdf/Yusuhara_Wooden_Bridge_Museum.pdf

12. Image Resources