杭州湾跨海大桥南航道桥主塔承台为哑铃形结构，平面尺寸大。
The pylon bases of the south channel bridge of Hangzhou Bay Sea-Crossing bridge are designed in shape of dumbbell structures that are extraordinarily large in plan.
杭州湾大桥为目前世界最长的跨海公路大桥，主桥包括南航道和北航道两座大跨度桥梁，抗风稳定性是控制主桥设计和施工的主要因素。
The long span bridge over Hangzhou Gulf is the longest across-sea bridge in the world. It mainly consists of the south-channel and the north-channel sections.
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