Abstract
Abstract. It is believed that folding-arch is the transitional form from beam to curved arch. Guyue Bridge, built in JiaDing 6year (A.D 1213) of Southern Song Dynasty, located in Yiwu City, Zhejiang Province in China, is one of typical objective examples for this transition. It possesses high historical, scientific, artistic, cultural and social values. Facing severe environmental problems and deteriorated heritage situation, our conservation team selected 3D laser scanning as basic recording method, then acquired the precise threedimensional model. Measured the fundamental dimension and components’ sizes, we analysed its stable state. Moreover, combined with historic documents, we reasonably speculated and calculated the original sizes and important scales at the building time. These findings have significant research values as well as evidential meanings for future conservation.
Highlights
According to the records, early in the spring and autumn period in China, bridges as one of forms of transportation have been appeared
Great progress had been made in construction skill and technique at that time, including raft-shaped foundation created in Luoyang Bridge, huge-scale bridge built in Fujian Province, high-foot ship using fit for different archway of bridges in Fujiao bridge in Tanzhou and so on
There are 76 bridges built in Song and Yuan period in Zhejiang Province exist including 29 arch bridges, 47 beam bridges and one pontoon bridge
Summary
Early in the spring and autumn period in China, bridges as one of forms of transportation have been appeared. In order to check the statues of the bridge and analyze the major risks and causes, judge the stability of the structure as well as make the restoration plan according to its conditions, the working team from Cultural Heritage Conservation Centre of the Tsinghua University, under the authorization of the local relic authority of Yiwu, has started comprehensive investigation and research over the Guyue Bridge since August, 2014, so as to inherit the values of the bridge to our future generations and completely These 4 folding-arch bridges, Guyue Bridge in Yiwu City, with earliest and finest built time as well as most complicate construction(2), offers multiple relics’, cultural and social values. Application and research on its current situation, through technique methods, is deemed to foundation of conservation, with significant meaning for repairing, explanation and interpretation in future
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