Blast responses of polyurea-coated concrete arches
| Autor: | Jin Fengnian, Chen Hailong, Yinzhi Zhou, Zhou Jiannan, Huguang He, Bo Wang, Peng Wang, Yang Liu, Hualin Fan |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
chemistry.chemical_classification
Structural material Materials science Mechanical Engineering 020101 civil engineering 02 engineering and technology Polymer engineering.material Spall Load carrying 0201 civil engineering chemistry.chemical_compound Cracking 020303 mechanical engineering & transports 0203 mechanical engineering chemistry Coating engineering Composite material Arch Civil and Structural Engineering Polyurea |
| Zdroj: | Archives of Civil and Mechanical Engineering. 21 |
| ISSN: | 1644-9665 |
| DOI: | 10.1007/s43452-021-00182-x |
| Popis: | The effects of polyurea coating on anti-explosion performances of reinforced concrete arches were studied through explosion experiments. Three coating schemes were proposed and investigated, including intrados coating, enclosed coating and fiber-grid/polyurea hybrid coating. The arches exhibit cracking, spalling and crashing failure modes in succession accompanying with reducing the scaled distance. The damage degree of the exploded arch is evaluated quantitatively by the residual load carrying capacity under quasi-static mid-span concentrated loading experiments. It is revealed that polyurea coatings have excellent anti-spalling ability than carbon fiber-reinforced polymer (CFRP) strengthening method and greatly increase the blast-resistance of the concrete arch and enclosed polyurea coating is the most efficient. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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