主要内容包括以下几个方面：(1)提出构件重要性系数的指标。
The main contributions are described in the following aspects: (1) the index of component importance coefficient is put forward.
本文从这一方法的数学模型入手，介绍重要性系数与评价矩阵的建立方法，并具有实例。
Presenting firstly the creation of the method's mathematical model, the paper introduces the aquisition of the important coefficient and the evaluation matrix, with an example to give an illustration.
建议声屏障结构设计基本风速重现期取50年，风荷载应考虑活载风与极限风两种情况，重要性系数取1。
It's suggested that design basic wind speed based upon 50-year mean recurrence interval, and coefficient for importance of a structure taken as 1.
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