PROBABLISTIC APPROACH FOR CONTROLING SHRINKAGE CRAKCING IN REINFORCED CONCRETE STRUCTURAL ELEMENTS

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  • 確率論に基づくRC部材の収縮ひび割れ制御手法に関する基礎的検討
  • カクリツロン ニ モトヅク RC ブザイ ノ シュウシュク ヒビワレ セイギョ シュホウ ニ カンスル キソテキ ケントウ

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Abstract

This study aims at evaluating shrinkage cracking risk in reinforced concrete structures, which has not been established in past studies. To achieve this goal, analytical scheme to calculate the probability of shrinkage cracking was proposed. In this scheme, the variation of shrinkage restrained stress, that of concrete cracking strength, and safety factor are to be determined. The first two were set via simple analytical simulation of structural elements, and the last factor was based on the comparison between cracking record of actual RC member and analysis results. Finally, this scheme was applied to construction process, and its validity was demonstrated via construction results.

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