Title: Performance of Ductile FRCC under Cyclic Loads and Non-Linear FE Simulation
Author(s): Antroula, G.; Stavroula, P.
Publication: Symposium Paper
Appears on pages(s): 310-320
Keywords: Strain Hardening cementitious concrete; reversed cyclic loading; deformation capacity; ductility.
With the advent of strain hardening fiber reinforced cementitious composites (SHFRCC) the
development of a new generation of structural systems that benefit from the inherent ductility
of concrete in tension in order to reduce the amounts of transverse reinforcement (stirrups),
shear strength, and tension-force development capacity to the main reinforcement is possible.
In this study a number of tests are conducted to explore the behavior of SHFRCC materials
under cyclic loads, simulating seismic effects. The experimental responses of two half-scale
interior beam column connections subjected to reversed cyclic loading are compared; one of
the connections was constructed with a cementitious matrix without fibers, and was detailed
according with the Eurocode provisions for ductility class M (moderate, μ=3.5). The other
connection was constructed with a SHFRCC mix; (2% by volume of PVA fibers was used to
reinforce the matrix and the minimum amount of shear reinforcement allowed by Eurocode 2
for non-seismic detailing was used in the specimens). Several supporting experiments were also
conducted to support analysis of the cyclic behavior (uniaxial tension, compression, splitting
tests). The behavior of the members under reversed cyclic displacement is also simulated with
advanced nonlinear Finite Element Analysis, with results that are correlated with the
experimental observations. The SHFRCC specimen with minimum detailing showed improved
performance and enormous ductility suggesting new possibilities to the seismic design of