构件更换

一种更好的方法是，根据在上述中央分析区域内的桥墩及构件更换费用所占的百分比，对每个桥墩及桥孔构件分摊风险。

The preferred method is to apportion the risk to each pier and span component on the basis of its percentage value to the replacement cost of the structure in the central analysis area .

为了延长老龄化飞机使用寿命确保飞机的飞行安全，必须对含缺陷构件进行更换或者修理。

In order to prolong the service life of aging aircraft and ensure aircraft safety , it need replace and repair damaged components .

以钢材为原材料的传统锚杆容易锈蚀，当用作地下工程的结构构件，因其更换困难会对结构的安全性和耐久性带来严峻的挑战。

The traditional steel bolt is easy to get rust , especially in corrosive environment , which will affect the safety and durability of structures .

对失效构件的维护和更换需要投入大量的成本，故疲劳预测成为船舶与海洋工程结构物结构设计的重要内容之一，疲劳强度和寿命预报结果，直接影响到结构的制造工艺、成本和可用性。

Fatigue prediction became one of the most significant contents in the design of naval structure while a mass of cost are needed when service and replacement of the failure members .