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Fabrication and design of precambered precast, prestressed concrete bridge girders
| 题名： | Fabrication and design of precambered precast, prestressed concrete bridge girders |
| 正文语种： | 英文 |
| 作者： | Richard Brice;Stephen J. Seguirant;Anthony Mizumori;Bijan Khaleghi |
| 作者单位： | Technol-ogy Corp |
| 关键词： | AASHTO;fabrication;camber;lateral stability;load- and resistance-factor design;LRFD;precamber;strength;Washington State Department of Transportation;WSDOT |
| 摘要： | Building an intentional vertical curve into a precast concrete girder formwork system and the prestressing strand layout creates a girder with a prefabricated vertical curvature known as precamber. Precamber is an effective technique for matching the roadway profile grade for girders fabricated with a monolithic deck slab. For superstructures with a cast-in-place concrete deck, this technique helps meet challenging vertical clearance requirements and reduces the slab haunch buildup associated with significant vertical curve profiles. This paper highlights the fabrication and design of precambered girders to raise awareness and share technical knowledge about this effective but underused application of precast concrete. |
| 出版日期： | 2020.05-06 |
| 出版年： | 2020 |
| 期刊名称： | PCI-Prestressed Concrete Institute Journal |
| 卷： | Vol.61 |
| 期： | No.03 |
| 页码： | 64-77 |
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