Q-1a) The single-bay moment-resistant 2 dimensional steel frame shown in the Figure, below, has the given properties. The moment of inertia for each column at a story level, and the beams are shown as assumed to be rigid relative to the columns. Use a unit base shear force as a fictious force as given in TBDY-2018 at the base level, find the equivalent earthquake static story forces and then estimate the first lateral mode, using fictious story forces and corresponding fictious story displacements to estimate the dominant period of the free vibration of the frame. m-10 Kn sec 2 cm 300 Kn 4d0cm. "m-15 Kn.sec 2 cm 150 cm 200 Kn 40cm m-15 Kn sec'/cm 1 = 200 cm 4 100 Kn 400cm. 1 - 200 cm 1500 cm Q-1a) The single-bay moment-resistant 2 dimensional steel frame shown in the Figure, below, has the given properties. The moment of inertia for each column at a story level, and the beams are shown as assumed to be rigid relative to the columns. Use a unit base shear force as a fictious force as given in TBDY-2018 at the base level, find the equivalent earthquake static story forces and then estimate the first lateral mode, using fictious story forces and corresponding fictious story displacements to estimate the dominant period of the free vibration of the frame. m-10 Kn sec 2 cm 300 Kn 4d0cm. "m-15 Kn.sec 2 cm 150 cm 200 Kn 40cm m-15 Kn sec'/cm 1 = 200 cm 4 100 Kn 400cm. 1 - 200 cm 1500 cm