The structural design of elements reinforced by fibres requires to take into consideration fibre orientation, since the material residu-al properties can vary as a function of element zone and cracking plane inclination. Therefore, designers have to consider the influ-ence of fibre orientation, both for its negative and positive effects. In this context, the present paper presents the results of an ex-perimental program aimed at evaluating fibre distribution and orientation in FRC slabs, as well as design implications at both mate-rial and structural level. Four elevated slabs (2.50 m x 2.50 m x 0.15m) were casted at Magnetti Building factory following the most common casting process adopted in practice (in order to be as close as possible to real situations). Two slabs were cut either orthog-onal or parallel to casting direction in order to obtain small beams 15x15x55 cm, while the remaining two slabs were first subjected to flexural tests and then numerically studied. Both vibrated and self-compacting concrete reinforced by 50 kg/m3 of steel fibres were studied.
Influence of fibre orientation on the structural response of FRC slabs
Leporace Guimil B.;Mudadu A.;Conforti A.;Plizzari G.;
2021-01-01
Abstract
The structural design of elements reinforced by fibres requires to take into consideration fibre orientation, since the material residu-al properties can vary as a function of element zone and cracking plane inclination. Therefore, designers have to consider the influ-ence of fibre orientation, both for its negative and positive effects. In this context, the present paper presents the results of an ex-perimental program aimed at evaluating fibre distribution and orientation in FRC slabs, as well as design implications at both mate-rial and structural level. Four elevated slabs (2.50 m x 2.50 m x 0.15m) were casted at Magnetti Building factory following the most common casting process adopted in practice (in order to be as close as possible to real situations). Two slabs were cut either orthog-onal or parallel to casting direction in order to obtain small beams 15x15x55 cm, while the remaining two slabs were first subjected to flexural tests and then numerically studied. Both vibrated and self-compacting concrete reinforced by 50 kg/m3 of steel fibres were studied.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
