通过对不同类型的建筑中１５６根钢筋混凝土柱中钢筋的混凝土保护层厚度的测试及厚度误差的统计分析，发现大部分柱中的混凝土保护层厚度都超出现行《混凝土结构工程施工及验收规范》（ＧＢ５０２０４－９２）规定的允许误差范围，保护层厚度的增大，使钢筋混凝土偏心受力柱的承载能力受到一定程度的影响。 Through the statistical analysis of the thickness of the concrete protective layer in 156 reinforced concrete columns in different types of buildings, the thickness of the concrete protective layer in most columns exceeds the existing “Construction and Acceptance Specifications for Concrete Structure Engineering”. The allowable error range (GB50204-92) and the increase of the thickness of the protective layer have affected the bearing capacity of the reinforced concrete eccentrically loaded column to some extent.