TY - GEN
T1 - Structural evaluation of an earthen building from operational modal analysis
AU - Aguilar, Rafael
AU - Solís, Mario
AU - Chácara, César
AU - Ruiz, Álvaro
N1 - Publisher Copyright:
© The Society for Experimental Mechanics, Inc. 2014.
PY - 2014
Y1 - 2014
N2 - This paper evaluates the structural behavior of a nineteenth century historical construction of rammed earth built in Lima (Perú). The dynamic response of the building was experimentally analyzed from Operational Modal Analysis tests. A FE model was built in order to approach the experimental behavior. Manual calibration of material properties and interaction with surrounding buildings were considered in order to achieve this goal. Due to the complexity of the structure, the level of damage and possible non-linear effects, only the first two modes were considered to be clear enough for calibration purposes. The building is a three story construction made of adobe masonry and a traditional composite material made of wood, cane and mud known as “quincha”. Experimental and numerical results evidenced the different behavior of the quincha and adobe walls in terms of flexibility. Moreover, loss of connectivity or stiffness between floors and walls is observed from the relative displacements between different parts of the building. The paper contributes to the application of vibration based structural health monitoring techniques to earthen historical constructions.
AB - This paper evaluates the structural behavior of a nineteenth century historical construction of rammed earth built in Lima (Perú). The dynamic response of the building was experimentally analyzed from Operational Modal Analysis tests. A FE model was built in order to approach the experimental behavior. Manual calibration of material properties and interaction with surrounding buildings were considered in order to achieve this goal. Due to the complexity of the structure, the level of damage and possible non-linear effects, only the first two modes were considered to be clear enough for calibration purposes. The building is a three story construction made of adobe masonry and a traditional composite material made of wood, cane and mud known as “quincha”. Experimental and numerical results evidenced the different behavior of the quincha and adobe walls in terms of flexibility. Moreover, loss of connectivity or stiffness between floors and walls is observed from the relative displacements between different parts of the building. The paper contributes to the application of vibration based structural health monitoring techniques to earthen historical constructions.
KW - Adobe
KW - Model updating
KW - Operational modal analysis
KW - Quincha
KW - Structural health monitoring
UR - http://www.scopus.com/inward/record.url?scp=84988712305&partnerID=8YFLogxK
U2 - 10.1007/978-3-319-04546-7_9
DO - 10.1007/978-3-319-04546-7_9
M3 - Conference contribution
AN - SCOPUS:84988712305
SN - 9783319007762
T3 - Conference Proceedings of the Society for Experimental Mechanics Series
SP - 71
EP - 79
BT - Mechanics of Biological Systems and Materials - Proceedings of the 2013 Annual Conference on Experimental and Applied Mechanics
PB - Springer New York LLC
T2 - 32nd IMAC Conference and Exposition on Structural Dynamics, 2014
Y2 - 3 February 2014 through 6 February 2014
ER -