摘要
本文在分析总结国内外研究成果的基础上，根据水工钢筋混凝土及部分预应力混凝土构件截面尺寸大、配筋率偏低的特点，建议了裂缝截面纵向受拉钢筋有效影响区的取值方法，提出了考虑受拉钢筋有效配筋率和混凝土保护层厚度的影响的裂缝宽度计算理论模式简化公式和数理统计公式．本文公式形式简单、应用方便，与大量试验资料符合良好．
In consideration of hydraulic engineering concrete components have the characteristics of large cross-section and low reinforcement- ratio, a method to calculate the effective area of tensile in cracked section is suggested. Based on experiments and theoretical analysis,two formulas for calculating the crack width,with the effects of protective layer and effective reinforcement ratio take in to consideration, are proposed. Calculated results agree with a number of experimental data.
出处
《水利学报》
EI
CSCD
北大核心
1994年第6期80-85,共6页
Journal of Hydraulic Engineering
关键词
钢筋混凝土
预应力混凝土
裂缝
hydraulic structure, reinforced concrete,partially prestressed concrete, components, crack width.
