Modern Concrete Structures: Modelling and Assessment

钢筋混凝土结构构成了加拿大的许多关键基础设施，从桥梁到核电站结构，从医院到多层建筑。这个基础设施处于成熟阶段，许多结构已经老化，需要维修。在某些情况下，由于许多因素，关键的混凝土建筑物和桥梁很容易失去使用，甚至是灾难性的失败，但主要是由于在其使用寿命期间维护不足。鉴于各国政府目前面临严重的经济约束，以及需要修复的混凝土结构缺陷库存高达数千亿美元，工程师们需要先进的评估工具。这些工具将使他们能够评估现有结构的安全性和可用性，决定哪些需要修复，确定最经济和有效的修复方法，并采用新的创新材料对结构的性能进行适当的建模。

Reinforced concrete structures comprise much of the critical infrastructure in Canada, ranging from bridges to nuclear power plant structures, hospitals to multi-storey buildings. This infrastructure is at a mature stage, with many structures having aged and being in need of repair. In some cases, critical concrete buildings and bridges are vulnerable to loss of use or even catastrophic failure, owing to a number of factors but mostly due to inadequate maintenance over their lifetime. With governments currently facing severe economic constraints, and with the inventory of deficient concrete structures requiring repair amounting to hundreds of billions of dollars, engineers require advanced assessment tools. These tools would enable them to assess the safety and serviceability of current structures, decide which require repair, determine the most economical and effective means of repair, and properly model the performance of structures employing new innovative materials.