Establishment of system of science and technology on evaluation of performance of concrete structures with material deterioration

通过室内试验、实际结构加载试验和非线性有限元分析，研究了受钢筋腐蚀、碱-硅反应和霜冻破坏的钢筋混凝土和预应力混凝土结构的结构性能。本研究发现了一些结构材料劣化对结构性能影响的实验事实和机理。提出了基于现场调查和数值模拟的劣化既有结构剩余结构性能评价方法。

Structural performance of reinforced and prestressed concrete structures which had been deteriorated by reinforcement corrosion, alkali-silica reaction and frost damage were investigated through laboratory test, loading test of actual structures and nonlinear finite analysis. Number of experimental facts and mechanisms about influences of material deterioration in structures on the structural performance were found in this study. Evaluation method of residual structural performance of deteriorated existing structures based on on-site investigation and numerical simulation was proposed.