JC法求重力坝可靠度的电算程序

结构的可靠度设计法由于考虑了变量的随机性及分布状态，比安全系数法更接近实际，将逐渐取代安全系数法而成为一种新的设计法。而ＪＣ法则是国际上通用的计算结构可靠度的有效方法。文章从可靠度的基本概念入手，向读者介绍了目前国际国内可靠度的实用计算法，并用ＪＣ法的电算程序（可求截尾的和不截尾的）算出了某一重力坝基面的抗滑、抗压、抗拉等极限状态的可靠度及相应的失效概率。结果和实际吻合良好。在目前阶段，可以用来验证和校核重力坝的安全性能。当《水工结构设计统一标准》开始实施时，本程序可作为设计程序用来设计、修改重力坝剖面等。

A Computer Programm of the JC Method for Solving the Reliability of Gravity Dam

The reliability design method of structure is more close to practice than the safety'factor method and is going to instead of the safety factor method by the reason of considering stochastic property and distribution situation of variable.The JC method i.s an effective and popularized world wide one for calculating the structure reliability. The,ppli,f calculation methods of reliability at home and abroad are introduced in this Paper. The reliability and failure probability of sliding. pressing and pulling resistance of a gravity dam are solved by using of the computer ptogmm of the JC method. The results are well coincided with the practice. The m-hod can be used for testing and calibrating the safety Performance of the existion gravity dams currently. The programm can also be used for designing and revising the profile of a gravity dam in practice of "Design Standard of Hydraulic Stricture".