Establishment of residual strength evaluation system and corrosion prediction of weathering steel bridges based on wind conditions and local environmental factors

基于风况和当地环境因素的耐候钢桥梁剩余强度评价体系建立及腐蚀预测

• 批准号: 23560564
• 负责人: IWASAKI EIJI
• 金额: $ 3.33万
• 依托单位: Nagaoka University of Technology
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 2011
• 资助国家: 日本
• 起止时间: 2011 至 2013
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-23560564/
• 关键词: 鋼構造; 耐候性鋼材; 腐食予測; 余耐力

Observation of airborne salt as a regional environment and geomorphological environment in the target bridge, observation of airborne salt in the local environment of the target bridge, measurement of the amount of corrosion due to exposure test pieces and comparison of the observed values of airborne salt and airborne salt of the bridge around by numerical simulation have been carried out, in order to establish a system for estimating the amount of corrosion and airborne salt around the bridge section from the structural specifications of the bridge, wind speed and direction and airborne salt of bridge construction point.

进行了目标桥梁区域环境和地貌环境气盐观测、目标桥梁局部环境气盐观测、暴露试件腐蚀量测量以及数值模拟对比气盐观测值与周围桥梁气盐观测值。从桥梁结构规范、风速风向、建桥点风载盐量等方面建立了桥梁断面周围腐蚀量和风载盐量的估算体系。