摘要
挂篮施工是近几年才应用于桥梁施工工程的一种新方法。桥梁安全性能如何,施工能否保证桥梁的设计线型是关键,而挂篮的定位精度是保证线型的首要前提。本文研究了挂篮受应力的特点,提出了一个推算挂篮弹性变形的简单公式,依此进行浙江新昌沃西大桥施工挂篮的定位测量,较好的保证了大桥的设计线型。
The new method of the construction with guyed travelers has been applied in bridge construction in recent years. As for the safety of bridge construction, it is necessary to guarantee the design line of the bridge, but the positioning precision with guyed travelers is the most important. This paper discusses the features of the stress with guyed travelers and guves a simple formula of the elastic deformation with guyed travelers.
出处
《工程地球物理学报》
2006年第4期310-314,共5页
Chinese Journal of Engineering Geophysics
关键词
大跨度预应力
挂篮定位测量
预拱度控制
long span prestress
positioning survey with guyed travelers
precamber control
