| 轻型智能预应力开启桥的设计探讨 |
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| 引用本文： | 徐伟炜,吕志涛,丁汉山.轻型智能预应力开启桥的设计探讨[J].特种结构,2007,24(2):87-89. |
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| 作者姓名： | 徐伟炜 吕志涛 丁汉山 |
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| 作者单位： | 东南大学,土木工程学院,南京,210096 |
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| 摘 要： | 轻型开启桥的设计是以尽可能减少开启部分的结构重量为目标的。与传统开启桥相比,它采用无背索斜塔斜拉桥作为其开启结构,并采用移动开合压重作为其开合方式。本文提出了该类开启桥的两种开合方式,使用接触弹簧对其进行辅助开合,同时对智能预应力体系在控制结构变形方面进行了探讨。
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| 关 键 词： | 开启桥 斜拉桥 开合方式 接触弹簧 智能预应力 |
Discussion on Design of Light Smart-prestressed Bascule Bridges |
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| Xu Weihui,Lü Zhitao,Ding Hanshan.Discussion on Design of Light Smart-prestressed Bascule Bridges[J].Special Structures,2007,24(2):87-89. |
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| Authors: | Xu Weihui Lü Zhitao Ding Hanshan |
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| Abstract: | The light bascule bridge is a new kind of bridge with the aim of reducing the weight of bascule structure.Comparing with the traditional bascule bridge,cable-stayed bridge without backstays as its bascule structure and moving ballast as its opening-closing mode are choosed with it.This article puts forward two kinds of opening-closing mode,and uses touch-spring to assistant unseal.Simultaneously the smart prestressing system for distortion control is discussed. |
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| Keywords: | Bascule bridge Cable-stayed bridge Opening-closing mode Touch spring Smart prestressing |
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