在结构优化的目标函数中，不仅应考虑结构造价，而且应考虑结构服役期的损失期望。为此，我们定义了抗震结构模糊可靠度的概念。
Not only structural construction cost but also loss expectation in the service life of the structure should be considered in the objective function of structural optimization.
构建以系统成本造价、维护维修费用和失效损失期望之和为最小的目标函数。
The minimal objective function which included system cost, maintenance and repair costs and loss expectation was established.
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