Full-scale experimental testing of the blast resistance of HPFRC and UHPFRC bridge decks

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216275%3A25310%2F17%3A39911100" target="_blank" >RIV/00216275:25310/17:39911100 - isvavai.cz</a>

Alternative codes found

RIV/68407700:21110/17:00311485 RIV/60162694:G43__/17:00534920

Result on the web

<a href="http://www.sciencedirect.com/science/article/pii/S0950061817306645" target="_blank" >http://www.sciencedirect.com/science/article/pii/S0950061817306645</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.conbuildmat.2017.04.054" target="_blank" >10.1016/j.conbuildmat.2017.04.054</a>

Result language

angličtina

Original language name

Full-scale experimental testing of the blast resistance of HPFRC and UHPFRC bridge decks

Original language description

Because of the current geopolitical situation, research on improving the resistance of the civil and transport infrastructure to blast or impact loads has gained considerable attention in recent years. This paper presents the results of full-scale blast experiments designed to characterize the resistance of steel-fiber reinforced concrete full-scale bridge decks subjected to near-field blast loading, and its dependence on the material properties of the concrete. The blast performance of reinforced concrete specimens increases with added high-performance steel fibers. An increase in fiber content and in compressive strength up to ultrahigh-performance fiber concrete (UHPFRC) further enhances its blast performance. An attempt was made to further increase the blast resistance of a concrete structure with the use of a basalt mesh. The UHPFRC specimen with a basalt mesh experienced a greater extent of internal damage than a regular UHPFRC specimen. However, the basalt mesh inserted into the concrete cover at the soffit of the UHPFRC specimen improved its blast performance, as expressed by the area of spalling and the volume of debris. This phenomenon was studied numerically, and it was proved that it is caused by the internal rebound of the shock wave, which causes a local increase in the stresses inside the specimen. The heterogeneity of the specimens, which is increased by an internal reinforcement or by a basalt mesh, converts the blast damage due to internal rebounds into layer delamination. The delamination of the concrete specimen can be very effective in dissipating the energy of the blast wave.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

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OECD FORD branch

20102 - Construction engineering, Municipal and structural engineering

Project

Result was created during the realization of more than one project. More information in the Projects tab.

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2017

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Construction and Building Materials

ISSN

0950-0618

e-ISSN

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Volume of the periodical

145

Issue of the periodical within the volume

August

Country of publishing house

GB - UNITED KINGDOM

Number of pages

14

Pages from-to

588-601

UT code for WoS article

000401876800061

EID of the result in the Scopus database

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