曹  炜，成  戎
    (同济大学建筑设计研究院，上海200092)

[摘要] 经济配筋率的研究对混凝土结构的经济指标具有重要的理论和实际意义。以单位长度混凝土梁为对象，推导出经济配筋率的公式，并用算例对造价函数进行了数值分析。
[关键词] 经济配筋率；造价函数

    Research on economical steel-concrete ratio of concrete beams
    Cao Wei, Cheng Rong
    (Architectural Design and Research Institute of Tongji University, Shanghai 200092, China)

Abstract: Research on econonucal steel-concrete ratio of concrete beams has important theoretical and practical meanings for economic study of concrete structures. This paper studies a unit length concrete beam, and derives a formula for economical steel-concrete ratio.A numerical analysis of construction cost function is also given.
Keywords: economical steel-concrete ratio; construction cost function