Monte-Carlo法在钢筋混凝土深梁可靠度分析中的应用

Research on Reliability of Reinforced Concrete Deep-Beam with Monte-Carlo Imitation Method

利用Ｍｏｎｔｅ－Ｃａｒｌｏ法，对现行混凝土结构设计规范及其修订稿中的钢筋混凝土深梁正截面受弯的可靠度进行了校准分析和比较，研究了不同荷载效应比值（恒载与住宅楼面活荷载的比值）、不同材料强度等级和不同配筋率对深梁可靠度的影响．分析结果表明，按修订稿设计的深梁正截面受弯的可靠度水平比按现行混凝土结构设计规范设计的深梁正截面受弯的可靠度水平更高．

Using Monte-Carlo imitation method,the calculation,analysis and comparison of flexural reliability of reinforced concrete deep-beam in the current design code for structural concrete and its revised draft are presented. The influences of different ratios of load effect, grades of material strength and ratios of reinforcement on the reliability of deep-beam are studied. The results indicate that the flexural reliability level of the deep-beam designed based on the revised draft is higher than that designed based on the current design code for structural concrete.