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# 1616.6.1 Simplified Analysis

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A simplified analysis, in accordance with Section 1617.5, shall be permitted to be used for any structure in Seismic Use Group I, subject to the following limitations, or a more rigorous analysis shall be made:

- Buildings of light-framed construction not exceeding three stories in height, excluding basements.
- Buildings of any construction other than light-framed construction, not exceeding two stories in height, excluding basements, with flexible diaphragms at every level as defined in Section 1602.

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1616.6.1 Structural Design, Simplified Analysis

A

*simplified**analysis*, in accordance with Section 1617.5, shall be permitted to be used for any structure in Seismic Use Group I, subject ...1617.5 Structural Design, Simplified Analysis Procedure for Seismic Design of Buildings

be taken as 1 percent of the story height unless a more exact

*analysis*is provided ...1620.2 Structural Design, Structural Component Design and Detailing (For Use in the Simplified Analysis Procedure of Section 1617.5)

The design and detailing of the components of the seismic-force-resisting system for structures designed using the

*simplified**analysis*procedure ...1617.5.1 Structural Design, Seismic Base Shear

The seismic base shear, V, in a given direction shall be determined in accordance with the following equation:
V = (1.2SDS / R)W ...

1617.5.2 Structural Design, Vertical Distribution

The forces at each level shall be calculated using the following equation:
Fx = (1.2 SDS / R)wx
(Equation ...