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Faculty of EngineeringThammasat University
VibrationModesofMultiStoryBuilding
Faculty of EngineeringThammasat University
Mode1:Ydirection Mode1:Ydirection
RegularStructure(SymmetryinVerticalandPlan)Faculty of EngineeringThammasat University
VibrationModesofMultiStoryBuildingMode1:Xdirection Mode1:Torsion
RegularStructure(SymmetryinVerticalandPlan)
Faculty of EngineeringThammasat University
VibrationModesofMultiStoryBuildingMode1:Ydirection Mode1:Ydirection(Plan)
IrregularStructure(Unsymmetric Plan)Faculty of EngineeringThammasat University
VibrationModesofMultiStoryBuildingMode1:Xdirection
IrregularStructure(Unsymmetric Plan)
Faculty of EngineeringThammasat University
VibrationModesofMultiStoryBuildingMode1:Ydirection Mode1:Ydirection
IrregularStructure(VerticalIrregularity) (Soft story) Faculty of EngineeringThammasat University
FacultyofEngineeringThammasatUniversity
(Soft story)
FacultyofEngineeringThammasatUniversity
FacultyofEngineeringThammasatUniversity
FacultyofEngineeringThammasatUniversity
FacultyofEngineeringThammasatUniversity
FacultyofEngineeringThammasatUniversity
(Teresa Guevara and Luis Enrique Garca 2005)
Short Column Effects (Soft story)
FacultyofEngineeringThammasatUniversity
FacultyofEngineeringThammasatUniversity
FacultyofEngineeringThammasatUniversity
FacultyofEngineeringThammasatUniversity
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FacultyofEngineeringThammasatUniversity
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FacultyofEngineeringThammasatUniversity
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FacultyofEngineeringThammasatUniversity
FacultyofEngineeringThammasatUniversity Faculty of Engineering
Thammasat University
VibrationShaker:Concept
2mRF frequencyCircular
RadiusMass
Rm
Faculty of EngineeringThammasat University
VibrationShaker:Concept2Massesaremovingatthesameratebutoppositedirection
PlanView
VibrationShaker:Concept
UniAxialHarmonicForcecanbegenerated!
VibrationShaker:
FacultyofEngineeringThammasatUniversity
VibrationShaker:
FacultyofEngineeringThammasatUniversity
VibrationShaker: Example:2storyRCbuildingPathumthani
FacultyofEngineeringThammasatUniversity
FacultyofEngineeringThammasatUniversity
FacultyofEngineeringThammasatUniversity
Mode Shape at Excite Y: (3.833Hz)
Plan ElevationFaculty of EngineeringThammasat University
Y direction
0.97
1
0.060
1
2
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. FacultyofEngineeringThammasatUniversity
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Faculty of EngineeringThammasat University
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. FacultyofEngineeringThammasatUniversity
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FacultyofEngineeringThammasatUniversity
. 1 FacultyofEngineeringThammasatUniversity . 1 FacultyofEngineeringThammasatUniversity
. 1FacultyofEngineeringThammasatUniversity . 1 1.5
. 1 2 . 1 2.5
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. 3 FacultyofEngineeringThammasatUniversity
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FacultyofEngineeringThammasatUniversity
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. FacultyofEngineeringThammasatUniversity
FacultyofEngineeringThammasatUniversity
FacultyofEngineeringThammasatUniversity
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. FacultyofEngineeringThammasatUniversity
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FacultyofEngineeringThammasatUniversity
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FacultyofEngineeringThammasatUniversity
FacultyofEngineeringThammasatUniversity
FacultyofEngineeringThammasatUniversity
FacultyofEngineeringThammasatUniversity
FacultyofEngineeringThammasatUniversity
FacultyofEngineeringThammasatUniversity
FacultyofEngineeringThammasatUniversity
FacultyofEngineeringThammasatUniversity
FacultyofEngineeringThammasatUniversity
FacultyofEngineeringThammasatUniversity
FacultyofEngineeringThammasatUniversity
FacultyofEngineeringThammasatUniversity
FacultyofEngineeringThammasatUniversity
FacultyofEngineeringThammasatUniversity
FacultyofEngineeringThammasatUniversity
. Vs30 = 240 m/s
. Vs30 = 258 m/s
. Vs30 = 350 m/s
. Vs30 = 310 m/s
. Vs30 = 388 m/s
. Vs30 = 221 m/s
. Vs30 = 367 m/s
. Vs30 = 548 m/s
FacultyofEngineeringThammasatUniversity
FacultyofEngineeringThammasatUniversity
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