design target reliability index 设计目标可靠指标
With using target reliability index, this method is easy to use, and harmonizes with the current reliability design standard.
这一方法简单易行，采用目标可靠度指标，与现行的可靠度设计统一标准方法协调。
Considering two basic types of load combinations, the practical design method was proposed to achieve a target reliability index of the system resistance based on the assessment of system reliability.
考虑两种基本荷载组合，在对平面屈曲约束支撑钢框架结构整体可靠度评价的基础上，给出了在一定目标可靠度下的基于结构体系极限承载力可靠度的实用设计公式。
Considered the target of optimization design for precision, reliability and cost, some principles that were suitable for gravity network designing were proposed.
本文首先对初始设计方案进行了评估，然后根据精度、可靠性、费用等优化目标提出了重力网优化设计需顾及的几条原则。
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