Modeling of masonry in the behavior of a reinforced concrete building
Abstract
Abstract
The current design of the buildings is based on theoretical models that contemplate
only the resistant structural elements. Enclosures and partitions in buildings are
considered as non-structural elements. However, in the presence of an earthquake,
they provide stiffness by modifying the magnitude and distribution of efforts. A more
detailed analysis should consider the interaction of the masonry to consider the
current structure behavior. The objective of this research was to synthetically develop
a resistant earthquake analysis of a reinforced concrete building using Cypecad
software, based on two theoretical models; the first one considers only the resistant
elements; the other considers the interaction of the masonry non-structural with the
building, using the Liauw & Kwan's mathematical model to calculate of the properties
equivalent diagonal width (compression rod). The results obtained must be; The shear
on the soft floor level is increased by an average of 21.5% according to the analysis
directions "X" and "Y". The drift in the soft floor level increases 5.25%, with respect
to the building considered with only resistant elements. The fundamental vibration
period of the structure with the interaction of the uncracked masonry decreases by
approximately 40% in contrast with the value obtained in the building considered with
only resistant elements.
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References
Científicas. p.p. 704
Carrillo C. (2008). Comparación de la respuesta sísmica incorporando y
desacoplando la mampostería y técnicas de reforzamiento. Tesis de Grado para
optar al título de Ing. Civil. Escuela Politécnica del Ejército, 200p. Quito.
CYPECAD (2017). Software for Architecture, Engineering and Construction, CYPE
Ingenieros S.A.
NEC-SE-CG (2015). Norma Ecuatoriana de la Construcción, Cargas no
Sísmicas.32p
NEC-SE-DS (2015). Norma Ecuatoriana de la Construcción Peligro Sísmico
Diseño Sismo Resistente. 147p
NEC-SE-MP (2015). Norma Ecuatoriana de la Construcción, Mampostería
Estructural.60p
NTE INEN 2518 (2010). Instituto Ecuatoriano de Normalización.25p.
Liauw, T y Kwan, K. (1984). Nonlinear behaviour of non-integral infilled frames,
Computers & Structures 18(3), 551-560.
Robalino, C. Peña herrera, L. Tilo, D. y López M (2008). Estudio de las propiedades
mecánicas de mampostería de bloques de hormigón en edificaciones del valle de
los chillos que iniciaron su construcción durante el año 2014. Revista Ciencia Vol.
(17), No 1, 2015, 147-157.
