RESEARCH OF STRUCTURAL CAPACITY FOR ACTUAL REINFORCED CONCRETE STRUCTURE AFFECTED BY ALKALI-SILICA REACTION

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  • アルカリ骨材反応を起こした鉄筋コンクリート実構造物の耐荷性能に関する研究
  • アルカリ コツザイ ハンノウ オ オコシタ テッキン コンクリート ジツ コウゾウブツ ノ タイカ セイノウ ニ カンスル ケンキュウ

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Abstract

A structural capacity for an actual reinforced concrete structure affected by alkali-silica reaction, called by ASR, is evaluated by the elasto-plasticity analyses. The objective structure is a turbine generator foundation having a table deck with ASR and columns to support equipments. In this study, the varieties of the concrete properties and the expansion of the table deck with ASR are evaluated by conducting the analyses under the seismic design load or the ultimate seismic load in addition to the mechanical operating loads and the expansion load. As the result, it is confirmed that the impact on the varieties of the expansion is enormous for the structural capacity in the seismic design load, but the impact on the varieties of the concrete properties and the expansion is slight in the ultimate load.

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