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Future of Rapid Bridge Deck Replacement.
| 题名： | Future of Rapid Bridge Deck Replacement. |
| 作者： | Allen, A.; Goodspeed, C. |
| 关键词： | Bridge deck, Precast concret, Bridge (Structure), Prestressed concrete bridges, Girder bridge, Accelerated bridge construction, Construction, Bridge modeling, Detours, Self compacting concrete, Safety, Traffic patterns |
| 摘要： | Replacing aging, deteriorated infrastructure often requires road closures and traffic detours which impose inconvenience and delay on commerce and members of the motoring public. Accelerated bridge construction techniques often use precast members to reduce the duration of construction and the resultant disruption to traffic patterns. This project considered various technical, safety, and economic challenges in the design and construction of a fullwidth precast concrete slab with a centerline crown. Torque verified leveling screws compensated for girder, deck panel prefabrication tolerances, and dead load deflections. In addition, the uniform-depth deck slab was cast by conventional per-stressing fabricators. The method to lift and transport the slabs was considered to prevent damage. Accelerated bridge construction is less expensive and bridge work can be completed and the bridge reopened to traffic within a matter of days versus months for conventional deck replacement. |
| 总页数： | Allen, A.; Goodspeed, C. |
| 报告类型： | 科技报告 |
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