For an office (RCC SMRF) building frame, the seismic weights on the floors are: W1=1000 kN, W2=1000

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Question:

For an office (RCC SMRF) building frame, the seismic weights on the floors are:
W1=1000 kN, W2=1000 kN, W3=500 kN. The story height is 3.5m and is constant throughout. The building is founded on medium soil and is in zone IV. The concrete has a compressive strength of 25 MPa and the columns are 45x45 cm in cross-section (square). Draw a neat sketch of the frame and develop mass and stiffness matrices, if
there are two throughout end columns in the frame.