Near-field multiple‑blast resistance of G-HPC sandwich walls incorporated with metallic tube core

• Autorzy: Yuan Pengcheng , Xu Shenchun , Yang Ting , Zhou Yun , Shao Ruizhe , Su Yu , Wu Chengqing

Identyfikatory

DOI

10.1007/s43452-024-00885-x

• Języki publikacji: EN

Abstrakty

EN

Multiple-blast loading induced in one explosion case more significantly threatens the safety of engineering structures, compared with single-blast loading. This study first proposed a novel sandwich wall based on the steel wire mesh (SWM) geopolymer based high-performance concrete (G-HPC) slab and metallic tube core (MTC) to mitigate the threat induced by the multiple-blast loading. The dynamic responses and failure mechanism of the sandwich wall was investigated by field blast tests and numerical simulations. The damage to the sandwich wall under different multiple-blast scenes was estimated in detail. The effect of parameters including the spacing of the steel tubes and the thickness of the front/rear slab was also investigated by numerical simulations. The experimental results showed that the sandwich walls could still maintain the integrity, indicating an excellent multiple-blast resistance. The numerical results illustrated that the front slabs could directly resist the multiple-blast loading and the metallic tube core could further mitigate the blast wave propagation. The parametric analysis indicated that the increase in the thickness of the rear slab improves the multiple-blast resistance of the sandwich wall.

Słowa kluczowe

EN

multiple blast resistance; G-HPC; sandwich wall; numerical simulation

PL

odporność na wybuch; G-HPC; ściana warstwowa; symulacja numeryczna

• Wydawca: Springer ; Wrocław University of Science and Technology
• Czasopismo: Archives of Civil and Mechanical Engineering
• Rocznik: 2024
• Tom: Vol. 24, no. 2
• Strony: art. no. e75, 2024
• Opis fizyczny: Bibliogr. 40 poz., rys., tab., wykr.

Twórcy

autor

Yuan Pengcheng

• Earthquake Engineering Research and Test Center, Guangzhou University, Guangzhou 510006, China

autor

Xu Shenchun

• Earthquake Engineering Research and Test Center, Guangzhou University, Guangzhou 510006, China

• https://orcid.org/0000-0003-1008-6672

autor

Yang Ting

• Earthquake Engineering Research and Test Center, Guangzhou University, Guangzhou 510006, China

autor

Zhou Yun

• School of Civil Engineering, Guangzhou University, Guangzhou 510006, China

autor

Shao Ruizhe

• School of Civil and Environmental Engineering, University of Technology Sydney, Ultimo, NSW 2007, Australia

autor

Su Yu

• RockTek Co. Ltd., Daye 435106, China

autor

Wu Chengqing

• School of Civil and Environmental Engineering, University of Technology Sydney, Ultimo, NSW 2007, Australia

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Uwagi

Opracowanie rekordu ze środków MNiSW, umowa nr POPUL/SP/0154/2024/02 w ramach programu "Społeczna odpowiedzialność nauki II" - moduł: Popularyzacja nauki (2025).