TY - JOUR
T1 - Earthquake-induced poundings of a seismically isolated building with adjacent structures
AU - Polycarpou, Panayiotis C.
AU - Komodromos, Petros
PY - 2010/7
Y1 - 2010/7
N2 - Past earthquakes have revealed detrimental effects of pounding on the seismic performance of conventional fixed-supported buildings, ranging from light local damage to more severe structural failure. However, the potential consequences of earthquake-induced poundings on seismically isolated buildings can be much more substantial, and, thus, should be assessed. This paper investigates, through numerical simulations, the effects of potential pounding incidences on the seismic response of a typical seismically isolated building. Such impact events may occur either with the surrounding moat wall at the building's base or against an adjacent building that may stand at a very close distance. A specialized software application has been developed in order to efficiently perform numerical simulations and parametric studies of this problem. The effects of certain parameters, such as the size of the separation distance, the characteristics of the adjacent structures and the earthquake characteristics, have been investigated using the developed software. The simulations have revealed that even if a sufficient gap is provided, with which poundings with the surrounding moat wall at the base of the building could be avoided, this does not ensure that the building will not eventually collide with neighboring buildings due to the deformations of their superstructures.
AB - Past earthquakes have revealed detrimental effects of pounding on the seismic performance of conventional fixed-supported buildings, ranging from light local damage to more severe structural failure. However, the potential consequences of earthquake-induced poundings on seismically isolated buildings can be much more substantial, and, thus, should be assessed. This paper investigates, through numerical simulations, the effects of potential pounding incidences on the seismic response of a typical seismically isolated building. Such impact events may occur either with the surrounding moat wall at the building's base or against an adjacent building that may stand at a very close distance. A specialized software application has been developed in order to efficiently perform numerical simulations and parametric studies of this problem. The effects of certain parameters, such as the size of the separation distance, the characteristics of the adjacent structures and the earthquake characteristics, have been investigated using the developed software. The simulations have revealed that even if a sufficient gap is provided, with which poundings with the surrounding moat wall at the base of the building could be avoided, this does not ensure that the building will not eventually collide with neighboring buildings due to the deformations of their superstructures.
KW - Adjacent structure
KW - Impact
KW - Moat wall
KW - Poundings
KW - Seismic isolation
UR - http://www.scopus.com/inward/record.url?scp=77953025519&partnerID=8YFLogxK
U2 - 10.1016/j.engstruct.2010.03.011
DO - 10.1016/j.engstruct.2010.03.011
M3 - Article
AN - SCOPUS:77953025519
SN - 0141-0296
VL - 32
SP - 1937
EP - 1951
JO - Engineering Structures
JF - Engineering Structures
IS - 7
ER -