Question: Q 1 ) ( 3 0 P ) A two story shear frame with lumped masses has the mass and story stiffness properties shown in

Q1)(30P) A two story shear frame with lumped masses has the mass and
story stiffness properties shown in figure. The beams are rigid and the flexural
rigidity of the columns is EI. Neglect axial deformations in all elements.
Determine the natural frequencies and modes of the system. Sketch the
modes.
Q 1 ) ( 3 0 P ) A two story shear frame with

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