the Swing Bridge

According to the horizontal moving rule of bridge crane and the swing rule of grab, We propose a method about swing proof of grab.

根据桥式起重机水平运行规律及抓斗摆动规律，提出了抓斗防摆的一种方法。

According to the mechanical analysis of bridge crane's grab, the mathematical model between crane's horizontal movement and grab swing is established.

根据起重机抓斗的受力分析，建立了起重机水平运行与抓斗摆动关系的数学模型。

This paper introduces the structural design and construction method by swing of the bridge.

介绍该主桥的结构设计和采用的转体施工方法。