寒冷地の文化的ｺﾝｸﾘｰﾄ構造物の健全度評価と保存に関する検討

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  • Research on evaluation of durability and preservation of concrete structures with culturel assets in cold regions
  • Research on evaluation of durability and preservation of concrete　structures cultural assets in cold regions

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When concrete structures in cold regions are in service for many years, the sever winter conditions of freeze-thawing and the large variations in temperature though the year cause deterioration in the durability of the concrete structure such as its load resistance the performance, damage the caused by third party influence, functionability, appearance and safety. Damage includes scaling, peeling off, and cracking caused by frost damage. However, some concrete structures have come to considered landmarks in an area. Citizens wish to preserve some concrete structures as cultural assets, part of their historical civil engineering heritage, and so on. This research combines assessment methods for investigation and quantitative assessment of the condition of concrete structures with cultural value, and methods for their maintenance and management by non-destructive tests. When structures were not damaged by huge earthquakes or floods, the structures were stabilized for standing themselves by analysis of FEM and estimation of freeze-thawing cycles at each depth.

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