Design of steel-concrete composite walls subjected to low-velocity impact. (March 2019)

• Record Type: Journal Article
• Authors: Guo, Quanquan; Zhao, Weiyi
• Is Part Of: Journal of constructional steel research. Volume 154(2019)
• Page Start: 190
• Page End: 196
• Publication Date: 2019-03
• Subjects: Steel-concrete composite wall -- Low-velocity impact -- Energy method -- Design requirements; Steel, Structural -- Periodicals; Building, Iron and steel -- Periodicals; Acier de construction -- Périodiques; Construction métallique -- Périodiques; 624.1821
• DOI: 10.1016/j.jcsr.2018.12.001
• Languages: English
• ISSNs: 0143-974X

Abstract

Abstract: Steel-concrete composite (SC) walls are composed of two steel plates and a concrete core. Experiments have shown that SC walls have excellent resistance to impact loadings, which is a great advantage for the applications in safety-related nuclear facilities. This paper presents an energy method for evaluating the maximum deformation of SC walls under low-velocity impact. The design requirements and flow for SC walls are proposed in three aspects: (i) local failure, (ii) maximum deformation, and (iii) damage degree. The parameters affecting the local failure and damage degree are discussed. The design method is applied to a sample SC wall in the AP1000 nuclear facility to validate its feasibility and provides a simplistic tool for researchers and engineers. Highlights: An energy method to calculate the maximum deformation is provided. The requirements and process for anti-impact design of SC walls are proposed. Raising the steel plate thickness is of top priority to improve the impact resistance. The feasibility of the design method is validated by a case study of AP1000.