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a 1 (X,k) = modal pseudo-acceleration [m/s2] of the first mode modal single degree of freedom system at the kth push step for earthquake direction [m/s2]
d 1 (X,k) = (X) earthquake modal displacement of the modal single degree of freedom system belonging to the first mode in the kth thrust step for the kth thrust for the earthquake direction[m]
m i = the total mass of the i th floor
m ix1 (X,1) = (X) the first thrust in the x-axis direction for the earthquake directionith floor modal effective mass [t]
m tx1 (X,1) calculated accordingto the constant mode shape determined in step and never changed during the thrust calculation
= (X) modal effective mass of the base shear force calculated according to the constant mode shape determined in the first thrust step in the x-axis direction for the earthquake direction and never changed during the thrust calculation [t]
m iy1 (X,1) = (X) for the earthquake direction i'th floor modal effective mass calculated according to the constant mode shape determined in the first thrust step in the y-axis direction and never changed during the thrust calculation [t]
m iθ1 (X,1) = (X) for the earthquake direction in the first thrust step around the z-axis The ith floor calculated according to the fixed mode shape determined and never changed during the thrust calculation
modal effective mass moment of inertia [tm2]
u ix1 (X,k) = (X) displacement calculated in the x-axis direction at the ith floor at the kth thrust step for the earthquake direction [m]
u Nx1 (X,k) = (X) k earthquake directions lactide pushing step in the Nth floor (top of the building) the displacement, calculated according to the axis X [m]
V TX1 (X, k) = (X) k earthquake directions' th, calculated according to the x-axis in step push base shear [kN]
Δa 1 (X,k) = modal pseudo-acceleration increment of the first mode modal single degree -of- freedom system at the kth push step for the earthquake direction (X)[m / s 2 ]
expressed as a dimensionless one Δd1 (X, k) = (X) k earthquake direction of the 'th pushing step the first mode of modal single degree of freedom system ' s modal displacement of [m]
Δf ix1 (X, k)= (X ) k earthquake direction of the 'th thrust step i' th floor, the x-direction acting seismic load increment [kN]
Δf iy1 (X, k) = (X) k earthquake direction of the 'th thrust step i' th floor acting along the Y axis earthquake load increment [kN]
Δf iθ1 (X,k) = (X) earthquake load increase acting in the z axis direction at the i th floor at the k th thrust step for the earthquake direction [kN]
Γ 1 (X,1) = (X) determined in the first thrust step for the earthquake direction and never changed during the thrust calculation modal contribution factor calculated according to fixed mode shape
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With the value of u Nx1 (X,k) and V tx1 (X,k) , a thrust curve whose coordinates are base shear force-peak displacement is obtained. To find the performance point, the V tx1 (X,k) term TDY Equation 5B.3 and the u Nx1 (X,k) term TDY Equation 5B.4 are applied.
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