Materiales de Construcción, Vol 64, No 314 (2014)

Performance of hybrid cement composite elements under drop-weight impact load


https://doi.org/10.3989/mc.2014.06813

V. D. Nguyen
Instituto de Ciencias de la Construcción Eduardo Torroja IETcc–CSIC, (Madrid, Spain), Spain

O. Río
Instituto de Ciencias de la Construcción Eduardo Torroja IETcc–CSIC, (Madrid, Spain), Spain

V. Sánchez-Gálvez
Universidad Politécnica de Madrid, (Madrid, Spain), Spain

Abstract


The performance, under drop-weight impact load, of hybrid cement composite (HCC) elements, consisting of a top layer of plain concrete (PC) and a bottom layer of fibre reinforced concrete (FRC), in comparison with full-depth FRC and PC was studied. Apart from improving the tensile capacity of PC and saving fibre steel reinforcements of FRC, the results showed that HCC can effectively control the deformations and enhance the impact performance of the structural members as its outcomes were similar to that of a full-depth FRC. The analytical studies using Hughes empirical formulae (HEF) and yield line theory (YLT) adopted to investigate the practical use of HCC showed that they are applicable for design such HCC elements against impacts.

Keywords


Hybrid cement composites; Fibre reinforcement; Drop-weight impact load; Impact theoretical analyses; Mayusculaocal and global dynamic response

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