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Development of Crash-Worthy Rails for Fiber Reinforced Polymer Honeycomb Bridge Deck System.
| 题名： | Development of Crash-Worthy Rails for Fiber Reinforced Polymer Honeycomb Bridge Deck System. |
| 作者： | El-Aasar, M. |
| 关键词： | Fiber reinforced polymer, Honeycomb panels, Bridge deck panels, Crash test, Bridge rails, Concrete barriers, Steel beams, Rural areas, Development, Public safety, Bridge trusses, Rapid replacement schedule |
| 摘要： | Fiber reinforced polymer (FRP) honeycomb panels offer an efficient and rapid replacement to concrete decks. The system consists of FRP honeycomb sandwich panels with adequate guardrails. Although FRP bridge deck panels have already been designed and used over the past several years on a number of through truss bridges, they could not be used on steel girder bridges until approved crashworthy bridge railing attachments could be validated. Two systems have been successfully crash tested, one with steel thrie beams/guardrails on steel posts and the other with concrete barriers. Both systems are now ready for use on temporary/detour bridges, or as permanent deck replacement allowing higher live load while keeping the existing steel girders and substructure. The light weight of FRP honeycomb panels (about 75% lighter than concrete) allows heavier truck loads, while keeping the existing girders and substructure without compromising the safety of the public. The roadway can be made wider by increasing the overhangs, thus allowing for wider farm equipment on narrow bridges in rural areas. The replacement of the concrete deck using this system may be completed in a matter of a few days, or even hours, as opposed to several months when using the conventional methods. |
| 总页数： | El-Aasar, M. |
| 报告类型： | 科技报告 |
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