钢筋混凝土建筑物耐久性能诊断方法研究

Assessment Method of Durability for Reinforced Concrete Buildings

钢筋混凝土建筑物于其生命周期中,常因天然因素(如地震、海风、降雨等),影响而产生劣化与腐蚀,造成强度降低及使用年限减少。因此拟定一套客观的评估系统,对于耐久性或安全性不足的建筑物,应拆除重建或给予适当的补修。本研究主要研拟钢筋混凝土建筑物整体的耐久性能诊断,如何将各部位劣化状况或各劣化因子影响范围统合为一综合性指标将为主要研究重点。其目的主要了解劣化主因及选择适当维护方法。

Reinforced concrete （RC） structures or buildings deteriorate overtime when exposed to corrosive environments. When the service-life interms of the structural safety or serviceability of a deteriorating RC building does not meet the original target, lifecycle maintenance strategies should be implemented. Once the cause of corrosion has beenidentified, structural members, beams, or columns with reinforcing steelcomponents corroded by carbonation or chloride ingress can be repairedor retrofitted. Therefore, there is an need for a method that can be used toassess the durability of an RC building and then determine an appropriatemaintenance strategy to prolong its service life.