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Assessment of SFRC flat slab punching behaviour - Part II: Reversed horizontal cyclic loading
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Orientador(es)
Resumo(s)
This paper presents an experimental study of four flat slab specimens subjected to combined vertical and horizontal cyclic loading. Steel fibre-reinforced concrete (SFRC) was used only in the local region of the slab-column connection, while the rest of the slabs were cast using normal concrete. The specimens measured 4·15 m×1·85 m×0·15 m and were connected to two steel half columns by 0·25 m×0·25 m rigid steel plates, prestressed against the slab using steel bolts, to ensure monolithic behaviour. The specimens were tested using an innovative test setup system that accounted for important factors, such as the ability of bending moment redistribution, line of inflection mobility and assured equal vertical displacements at the opposite slab borders, and symmetrical shear forces. Results show that the presence of SFRC in the slab-column connection region is effective in increasing the deformation capacity of slab-column connections, allowing the increase of horizontal drift ratios.
Descrição
This work received support from the Fundacao para a Ciencia e a Tecnologia - Ministerio da Ciencia, Tecnologia e Ensino Superior (scholarship number SFRH/BD/109073/2015). The authors would like to thank Eng. Erik Ulrix from BIU, Portugal, Eng. Ana Maria Proenca from FEUP, Portugal, and Eng. Sarah Van Bergen from Bekaert, Belgium, for their support.
Palavras-chave
Civil and Structural Engineering Building and Construction General Materials Science