n.跳开结构
When it was built, Tower Bridge was the largest and most sophisticated bascule bridge ever built （"bascule" comes from the French for "see-saw"）. 塔桥竣工时，是当时最大最精密的平衡活动结构（“平衡活动结构”一词源自法语中的“秋千”，以下简称吊桥）。
Besides,the simulation model of steel deck pavement of the Tianjin Xiangluo Bay Bascule Bridge under vehicle load is established. 分析结果表明,以不同力学响应为铺装层力学控制指标时,采用的仿真模型也不同;
The pumping unit adopts tower structure with great stability and easy to field installation. The pumping unit also adopts chorate bascule and easy to transport. 机架采用塔式结构，稳定性好，便于现场安装；大型机机架则采用活动收缩式结构，便于包装运输。
Discussion on the Design of a New Type Bascule Bridge 一种新型开启桥的设计探讨
Discussion on Design of Light Smart-prestressed Bascule Bridges 轻型智能预应力开启桥的设计探讨
