论文部分内容阅读
最大限度地考虑钢筋混凝土的特性改进其计算的方法之一是,不分析研究应力状态的某些参数值(εσR,ω。ξ,Rи,R,р等等),而分析研究综合实验物理特徵(应力、挠度、裂缝开度)。在这个基础上推导出来的公式,较为精确和简单。由于综合实验特性更为单一,而且比起个别物理参数误差较小,因此其解精确。确定钢筋混凝土强度的公式是根据下述原理制定的。计算中引用综合值,对于上述应力状态,例如受压、受拉混凝土内力的合力P_σ以及合力P_σ在截面上的位置特征(C_σ和L_σ),这些综合值可以用实验方法求得。在计算图中,应力状态就是通过混凝土与钢筋内力合力作用
One of the ways to maximize the consideration of the properties of reinforced concrete to improve its calculation is to not analyze the values of certain parameters (εσR, ω, ξ, Rи, R, р, etc.) in the study of stress state, and analyze and study the physical characteristics of comprehensive experiments. (stress, deflection, crack opening). The formula derived on this basis is more accurate and simpler. Because the comprehensive experimental characteristics are more uniform and less error than the individual physical parameters, the solution is accurate. The formula for determining the strength of reinforced concrete is based on the following principles. In the calculation, the comprehensive values are quoted. For the above stress states, for example, the positional characteristics (C_σ and L_σ) of the resultant force P_σ and the resultant force P_σ of the compressed concrete and tensioned concrete internal forces, these integrated values can be obtained experimentally. In the calculation diagram, the stress state is the effect of the internal forces acting on the concrete and the steel bars.