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我国的《建筑结构设计统一标准》(1983)中规定:用以概率理论为基础的极限状态设计法进行设计。在土中结构物的设计方面现在已开始了由定值设计法向极限状态设计法的过渡工作。 任何一种结构设计总存在着破坏的风险。如果出现破坏的概率是可以接受的,就不必进一步强化结构。可接受的破坏概率通常称为目标概率,记为P_(ft)。我们进行设计计算的目的就是要估计结构破坏时的荷载及材料参数。设计中一般是应用概率和数理统计的
China’s “Unified Standard of Architectural Structure Design” (1983) stipulates: design using the limit state design method based on probability theory. In the design of structures in soils, the transition from the fixed value design method to the limit state design method has now begun. Any kind of structural design always has the risk of destruction. If the probability of damage is acceptable, there is no need to further strengthen the structure. The acceptable probability of failure is often called the target probability, denoted as P_(ft). The purpose of our design calculation is to estimate the load and material parameters of the structural failure. Design is generally applied to probability and mathematical statistics.