The structure shown irbelowFig. 1 has very stiff beams, and hence, will be Idealized as two degrees of freedom. The structure properties are given as follows: mass: m₁ = 0.2 kN.s² /mm m₂=0.4 kN.s² /mm stiffness: K₁= 12 El₁/L₁ = 50 kN /mm k₂= 12 El₂/L₂ = 100 kN /mm L₁ = 3m L₂=3m EQ k₁ kz M₁ m₂ K₁ k₂ u1 damping: 5=5% Fig. 1 If the structure is excited by El-Centro earthquake in the direction shown in the same figure, calculate the maximum displacements, maximum story forces, and maximum reactions, i.e. base shear and base moment using SRSS combining method.

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Chapter2: Loads On Structures
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Determine the forces and max reactions correctly

Earthquake engineering civil 

The structure shown irbelowig. 1 has very stiff beams, and hence, will be
Idealized as two degrees of freedom. The structure properties are given as
follows:
mass:
m₁ = 0.2 kN.s² /mm
m₂ = 0.4 kN.s² /mm
stiffness:
K₁= 12 El₁/L₁ = 50 kN /mm
k₂= 12 El₂/L₂ = 100 kN/mm
L₁ = 3m
L₂=3m
EQ
k₁
kz
M₂
K₁
K₂
5
Fig. 1
41
U2
damping:
5= 5%
If the structure is excited by El-Centro earthquake in the direction shown in
the same figure, calculate the maximum displacements, maximum story
forces, and maximum reactions, i.e. base shear and base moment using
SRSS combining method.
Transcribed Image Text:The structure shown irbelowig. 1 has very stiff beams, and hence, will be Idealized as two degrees of freedom. The structure properties are given as follows: mass: m₁ = 0.2 kN.s² /mm m₂ = 0.4 kN.s² /mm stiffness: K₁= 12 El₁/L₁ = 50 kN /mm k₂= 12 El₂/L₂ = 100 kN/mm L₁ = 3m L₂=3m EQ k₁ kz M₂ K₁ K₂ 5 Fig. 1 41 U2 damping: 5= 5% If the structure is excited by El-Centro earthquake in the direction shown in the same figure, calculate the maximum displacements, maximum story forces, and maximum reactions, i.e. base shear and base moment using SRSS combining method.
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