This paper gives a short overview on the Ytong Building System and
discusses possible seismic verification concepts. Moreover it proposes three-
dimensional finite element models for un
reinforced and reinforced walls panels
in aerated autoclaved concrete on the b
asis of the concrete damage plasticity
constitutive law implemented into th
e FEM toolkit ABAQUS. The paper
focuses on an unreinforced ten panel shear
wall and on a reinforced four panel
shear wall. For the latter, two different
solutions are developed: in the first the
reinforcement is directly embedded in
to the AAC mesh, while in the second
grouted cores around the reinforcement ba
rs are taken into account. The quasi-
static loading condition was simulated us
ing both static and dynamic implicit
analysis, switching from the former to
the latter at the occurrence of
nonlinearities. The simulation results show
that the AAC shear wall models can
correctly represent the load-displaceme
nt responses as well as the cracking
patterns and crack propagations. The c
oncrete damage plasticity constitutive
law allows for a proper representation of
the cyclic behavior and the damage
accumulation of AAC shear walls, which is very important for the performance-
based design of structures under seismic loading. Further researches are
recommended in order to improve the results and to investigate different
combinations of applied axial load, asp
ect ratios and reinforcement details. The
long term goal is the development of a
feasible and powerful deformation based
seismic verification procedure for the Ytong Building System.
Numerical investigation of AAC wall panels based on the damage plasticity constitutive law. Available from: https://www.researchgate.net/publication/290587202_Numerical_investigation_of_AAC_wall_panels_based_on_the_damage_plasticity_constitutive_law [accessed Dec 15, 2016].
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