时效分析方法在多种桥梁结构型式中的应用

在施工到成桥的过程中,结构的几何特性、材料特性、承受的荷载等均随时间的推移而不断的变化,混凝土的收缩徐变必将影响到结构的内力和变形,因此对混凝土斜拉桥进行有效分析以了解其在施工中及成桥后真实的内力和变形是非常必要的,介绍了能够解决上述问题的时效分析方法,此方法考虑结构几何和材料非线性,可在施工过程对结构短期和长期的承载力响应方面提供有价值的结论。

Application of Aging Analysis Method in Multiple Types of Bridge Structures

In the process from construction to bridge forming,the constructural geometric characteristics,characteristics of materials and bearing load continuously change all with the lapse of time.The shrinkage creep of concrete necessarily will influence the internal force and deformation of structure,thereby the paper effectively analyzes the concrete cable stayed bridge so as to understand its real internal force and deformation.It introduces settling obove-mentioned issues by aging analysis method which deems the structural geometry and materials nonlinearity can provide valuable conclusions for responses of short-term and long-term bearing capacity of the structure in construction.