水工混凝土材料性能设计指标的取值方案研究

Study on determination of design index for material properties of hydraulic concrete

结合我国现行水利工程行业标准SL/T191—96修订工作的需要,通过比较分析国内外混凝土结构设计规范材料性能设计指标取值的有关规定,提出了较为合理的水工混凝土材料性能设计指标取值的建议方案。结果表明,文中提出的混凝土轴心抗压与轴心抗拉强度标准值的计算公式形式简单、实用方便,且与我国现行SL/T191—96及GB 50010—2002规范的取值具有较好的一致性,可供水工混凝土结构设计规范修订时参考。

Combined with the need of revising the current industry standard for hydraulic engineering SL/T 191-96 ＂The Design Code for Hydraulic Concrete Structures＂ in China, a more rational alternative for determining the design values for material prop- erties of hydraulic concrete is put forward based on the comparison and analysis of those prescribed by the relevant design codes of concrete structure at home and abroad. The result shows that the calculating formulas for the standardized values of both the com- pressive strength and the tensile strength of the concrete given herein are simple in form and convenient in use; from which the values obtained are better consistent with those from the current code SL/T 191-96 and GB 50010-2002 in China, and then the study result can be used as a reference for revising the design codes for hydraulic concrete structure concerned as welL