TY - JOUR
T1 - Observation and interpretation of closely spaced fundamental modes of a high-rise building
AU - Gómez, Sergio Sanchez
AU - Metrikine, Andrei V.
PY - 2020
Y1 - 2020
N2 - In this paper the dynamic behaviour of a high-rise building with complex structural system is studied. In some cases, to optimize the building design, the horizontal stability of the building is accomplished by the contribution of several structural components. This is the case of the JuBi tower, the building studied in this paper. The horizontal stability of the building is accomplished by three cores and outer walls. The cores and the walls are connected through the floors and the foundation. The data recorded during the experimental campaign carried out in this building show a double-peak behaviour corresponding to two closely spaced modes in the translational directions. This is caused by the weak coupling between the structural components. To study this phenomena, in this paper, a yet unique double-beam model is used. The parameters of the model are tuned so as to resemble the experimental response of the building. Results of the model evidence that the weak coupling is caused by the beams and the foundation. Also, it is shown that the two closely spaced modes correspond both to bending shape modes.
AB - In this paper the dynamic behaviour of a high-rise building with complex structural system is studied. In some cases, to optimize the building design, the horizontal stability of the building is accomplished by the contribution of several structural components. This is the case of the JuBi tower, the building studied in this paper. The horizontal stability of the building is accomplished by three cores and outer walls. The cores and the walls are connected through the floors and the foundation. The data recorded during the experimental campaign carried out in this building show a double-peak behaviour corresponding to two closely spaced modes in the translational directions. This is caused by the weak coupling between the structural components. To study this phenomena, in this paper, a yet unique double-beam model is used. The parameters of the model are tuned so as to resemble the experimental response of the building. Results of the model evidence that the weak coupling is caused by the beams and the foundation. Also, it is shown that the two closely spaced modes correspond both to bending shape modes.
KW - Double-beam system
KW - Dynamic response
KW - High-rise building
UR - http://www.scopus.com/inward/record.url?scp=85098501147&partnerID=8YFLogxK
U2 - 10.3390/buildings10070132
DO - 10.3390/buildings10070132
M3 - Article
AN - SCOPUS:85098501147
SN - 2075-5309
VL - 10
SP - 1
EP - 17
JO - Buildings
JF - Buildings
IS - 7
M1 - 132
ER -