Performance-Based Durability Design of Concrete Structures

基于性能的混凝土结构耐久性设计

• 批准号: 09555138
• 负责人: MIYAGAWA Toyoaki
• 金额: $ 7.74万
• 依托单位: KYOTO UNIVERSITY
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (B)
• 财政年份: 1997
• 资助国家: 日本
• 起止时间: 1997 至 1998
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-09555138/
• 关键词: Performance-Based Design; Durability Design; ASR; Surface Coating; High Strength Concrete; High Workable Concrete; Environment; Maintenance; 塩害; 補修・補強; モニタリング

(a) The degradation mechanism of the member subjected to ASRInfluence of degradation of the concrete by ASR on shear capacity including the earthquake performance was investigated.(b) Long term performance of surface coating for repair and strengtheningHydrophobic performance of the 100% silane, performance of epoxy coated steel reinforcement and concrete surface lining in the marine environment, repair and strengthening of sewerage concrete structures by the FRP sheet were investigated.(c) Performance of high strength and/or high workable concreteGenerated stress and creep behavior of high strength paste and concrete under uniaxial tension type self contraction restraint, shrinkage of high strength concrete salinity infiltration and reinforcement corrosion in high workable concrete using limestone fine powder or ground granulated blast-furnace slag were investigated.(d) The required performance from the environmentBiofouling characteristics of concrete and cast iron member under the marine environment was investigated.(e) Diagnosis and maintenanceDevelopment of nondestruction diagnosis and soundness decision technique for various defects in the concrete optimum maintenance plan of the existing bridge using BMS were investigated.

(a)研究了ASR作用下混凝土构件的劣化机理，分析了ASR对混凝土构件抗剪承载力及抗震性能的影响。(b)研究了100%硅烷的憎水性、环氧涂层钢筋和混凝土表面衬里在海洋环境中的性能以及FRP片材对污水混凝土结构的修复加固。(c)高强和高工作性混凝土的性能研究了高强浆体和混凝土在单轴拉伸型自收缩约束下的应力和徐变特性、高强混凝土的收缩、高工作性混凝土中石灰石细粉和磨细矿渣的盐渗透和钢筋锈蚀。(d)研究了海洋环境下混凝土和铸铁构件的生物污损特性。(e)诊断与维修研究了基于BMS的既有桥梁混凝土最优维修方案中各种缺陷的无损诊断与合理性决策技术的发展。