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PRECAST POSTTENSIONED ABUTMENT SYSTEM AND PRECAST SUPERSTRUCTURE FOR RAPID ON-SITE CONSTRUCTION.
| 题名： | PRECAST POSTTENSIONED ABUTMENT SYSTEM AND PRECAST SUPERSTRUCTURE FOR RAPID ON-SITE CONSTRUCTION. |
| 作者： | Scanlon-A; Aswad-A; Stellar-J |
| 关键词： | Box-beams; Bridge-abutments; Bridge-design; Bridge-superstructures; Cast-in-place-concrete; Demonstration-projects; Feasibility-analysis; Footings-; Pennsylvania-; Posttensioning-; Precast-concrete; Prefabricated-bridges |
| 摘要： | A prefabricated bridge system was designed to minimize on-site construction time. The system consists of a double-cell adjacent box beam superstructure supported on precast posttensioned abutment units on cast-in-place footings. The design concept was implemented in a demonstration bridge replacement project, a single-span bridge crossing a creek in southwestern Pennsylvania. The construction project demonstrated the feasibility of the design concept as a means to reduce construction time by eliminating cast-in-place concrete for abutment walls. |
| 总页数： | Transportation Research Record. 2002. (1814) pp65-71 (6 Phot., 6 Fig., 2 Ref.) |
| 报告类型： | 科技报告 |
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