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Evaluation of the FRP-Retrofitted Arches in the Castlewood Canyon Bridge. Appendices A-H.
| 题名： | Evaluation of the FRP-Retrofitted Arches in the Castlewood Canyon Bridge. Appendices A-H. |
| 作者： | CHANG, S.; FAFACH, D.; SHING, B.; XI, Y. |
| 关键词： | *Retrofitting-; *Engineering-drawings; *Carbon-fiber-reinforced-plastics; *Blueprints-; *Arch-bridges.;Durability-; Colorado-; Bridge-maintenance; Concrete-; Shotcrete-; Peeling-; Bond-strength. |
| 摘要： | This appendix contains the drawings prepared by the engineers at Fyfe Co. for the Fibrwrap application scheme. The application process was comprised of three consecutive phases. Phase 1 included the longitudinal and transverse sheets between the arch-foundation connections and the first spandrel columns. In this region, more Fibrwrap was applied to the extrados than the intrados due to the large negative moments expected from a concentrated truck load above the second spandrel column. Sheet 4 of Phase 1 was part of a later addendum which addressed the reinforcing details around the arch struts. The bulk of each arch was reinforced in Phase 2. The longitudinal Fibrwrap was applied first. This was approximately evenly distributed between the extrados and the intrados. The arch ribs, except for the area pertaining to Phase 3, were then covered with alternate full and C-shaped wraps. The full wraps on either side of the spandrel columns were doubled to provide extra confinement around the column-arch connections. Sheet 8 of Phase 2 was part of the subsequent strut addendum. When Phase 2 was completed, the arch ribs were considered strong enough to withstand the construction loads associated with the replacement of the columns and deck. Phase 3 was undertaken after the existing spandrel columns were removed. The column footprints were covered with transverse Fibrwrap. The struts were also wrapped with alternating full and C-shaped wraps. |
| 报告类型： | 科技报告 |
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