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用概率方法校准结构可靠度,首先必须掌握设计中各种基本变量的不定性。在计算可靠指标β时,所涉及的基本变量主要是两类:荷载效应和结构抗力。可以认为,它们是相互独立的随机变量。荷载效应方面各基本变量的统计参数已在另文中统一给出。本文将给出砖石结构抗力方面基本变量的统计参数,并对其可靠度和材料用量进行分析。
To calibrate the structural reliability using probabilistic methods, one must first master the variability of various basic variables in the design. When calculating the reliability index β, the basic variables involved are mainly two types: load effects and structural resistance. It can be considered that they are independent random variables. The statistical parameters of the basic variables for load effects have been given in separate texts. In this paper, the statistical parameters of the basic variables of masonry structure resistance are given, and their reliability and material consumption are analyzed.