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Orthotropic Steel Cantilever Widening Method of Concrete Box Girder
| 题名： | Orthotropic Steel Cantilever Widening Method of Concrete Box Girder |
| 正文语种： | 中文 |
| 关键词： | Concrete Box Girder Widening Method SCWCBM Orthotropic Steel Cantilever Transverse External Prestressing Tendon |
| 摘要： | In order to meet the widening requirement of urban bridge, this paper proposes a new box girder widening method-steel cantilever widening concrete box girder method without piers (SCWCBM for short).According to this method, the original bridge deck is widened by the orthotropic steel decks which are layed on the cantilevers at both sides of the box girder.The cantilevers which are setted on both sides of the original box girder are connected to the original box girder by tranverse external prestressing tendons.In this paper, Combined with the practical work, the widening procedure of SCWCBM is detailed.Compared with the general widening methods, SCWCBM has many advantages, such as shorter construction period, open clearance of span, smaller traffic interference, better traffic capacity and better economic benefit.SCWCBM is an effective tailor-made widening method for urban box girder. |
| 会议日期： | 201405 |
| 会议举办地点： | 大连 |
| 会议名称： | 大工桥梁学科三十年学术研讨会 |
| 出版日期： | 2014-04-30 |
| 母体文献： | 大工桥梁学科三十年学术研讨会论文集 |
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