The Analysis of Irregular Shaped Structures: Two-Part Series

The complexities of modern-day architectural design often necessitate irregular structural layouts with multiple offset roof and floor diaphragms, and walls. Although codes and standards recognize and address these situations, limited commentary and/or examples have been provided that clearly show how these irregularities can be handled. This two-part presentation will provide a detailed review of how to analyze these complex structures.

In Part I, topics will include diaphragm code requirements, how to recognize diaphragm irregularities and discontinuities, how shears are distributed through complex diaphragms, the method of analysis used to solve the transfer of forces across areas of discontinuity, and the analysis of flexible diaphragms with horizontal offsets.

Part II, will include how to analyze in-plane and out-of-plane offset shear walls that offset diaphragms typically create and provide an understanding of the distribution of forces to ensure that complete load paths are being established. 

Recorded courses are available on The Wood Institute. You must create a free account to take these on-demand courses.

• Part 1 – Offset Diaphragm Design 
• Part 2 – Offset Shear Wall Design