摘要
在系统分析钢筋混凝土梁受剪性能的基础上 ,进行了 2 4根承受集中荷载和均布荷载的钢筋混凝土梁的受剪性能试验 ,主要考虑的因素有剪跨比 (λ =a/h0 )、跨高比 (l0 /h) 、水平和垂直腹筋配筋率(ρsh和 ρsv) .详细阐述了梁的受剪特性、破坏形态、受压区混凝土的作用以及腹筋的作用 (包括水平腹筋和垂直腹筋 ) ,并最终提出了钢筋混凝土梁斜截面受剪承载力统一计算方法 .该方法可用于计算深梁、短梁及浅梁的斜截面承载力 。
Based on the systematic analysis of the shear behavior for reinforced concrete beams, the paper presents an experimental investigation involving 24 reinforced concrete beams subjected to concentrated and uniformly distributed loads. Four main factors are considered, namely shear span ratio ( λ=a/h 0 ) , span depth ratio ( l 0/h ), horizontal and vertical web reinforcement ratio ( ρ sh & ρ sv ). According to the test results, the working behavior, shear failure modes, the action of concrete compression zone as well as shear (web) reinforcement (including of horizontal and vertical web reinforcement) are further elaborated. Furthermore, the unified calculation method for shear capacity of beams is presented, which can be used to calculate the shear capacity of deep beams, short beams and even normal beams. The proposed formulas' calculation results are in good agreement with the test results.
出处
《郑州大学学报（工学版）》
CAS
2002年第1期21-24,共4页
Journal of Zhengzhou University（Engineering Science）
