Given: The plan and section of the building in Fig. 3.B. Roof dead load D 15 psf on a horizontal plane, and wall dead load D 12 psf. The seismic diaphragm force Fpx coefficient has been calculated as...

Given:

The plan and section of the building in Fig. 3.B. Roof dead load D 15 psf on a horizontal plane, and wall dead load D 12 psf. The seismic diaphragm force Fpx coefficient has been calculated as 0.200.

Fig. 3.B

Find:

a. Uniform seismic force on the roof diaphragm in the transverse direction. Draw the loading diagram.

b. The seismic force distribution on the roof diaphragm in the longitudinal direction. Draw the loading diagram noting the lower force at the overhang. c. The total diaphragm shear and the unit diaphragm shear at line 1 d. The total diaphragm shear and the unit diaphragm shear at line 4