港口工程钢筋混凝土结构性能退化的影响因素

Influence factors of performance degradation for reinforced concrete structures of port engineering

通过分析调研资料、总结已有成果并结合港口工程结构特点,归纳出影响我国港工混凝土结构性能退化的主要因素是应力和氯离子的联合作用。提出了对港工结构性能退化的研究除考虑氯离子外,尚应重点考虑应力作用水平(包括大小和持续时间)、混凝土有效保护层厚度和横向裂缝宽度的影响。

Structural stress and chlorideions are the major factors influencing the performance degradation of reinforced con- crete port structures in China by analyzing survey data, summarizing existing investigate results and considering the characteristic of port structures. We proposed that the structural stress level （include the magnitude and duration） , effective concrete cover thickness and transverse crack width should be taken into account in the study of performance degradation of reinforced con- crete port structures besides chloride ions.