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American Wood Council

DES510 – Overview of Codes and Standards Affecting Mid-rise Construction

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Mid-rise construction, with multiple stories of wood framing over a concrete first story, has been popular for many years as a way to take advantage of wood's cost effectiveness for the superstructure while maintaining a more traditional construction type below. Recently, some designers have chosen to forego concrete altogether and build the entire structure in wood, including the transfer floor framing level between R-2 and S-2 occupancies—further decreasing their costs while speeding construction and creating less massive, more uniform buildings. This course will examine two very different projects, a luxury apartment complex and a senior housing/mixed use project. Design considerations for durability, fire protection, sound transmission, seismic loads, and other provisions in the International Building Code (IBC) and the AWC Special Design Provisions for Wind and Seismic (AWC-SDPWS) will be addressed.

Learning Outcomes:

Upon completion of this course, participants will:

  1. Understand the opportunities and challenges for wood use in mid-rise construction and be able to use that knowledge to specify this type of system in the future.
  2. Learn the motivational drivers associated with the use of wood for midrise construction and why to consider it on future projects vs. typically specified systems.
  3. Discover the structural challenges associated with transfer floor framing (level between R-2 and S-2) and gain a better understanding of the collaboration necessary with the structural engineer.
  4. Understand how a transfer floor framing (level between R-2 and S-2) is designed for durability and longevity using non-traditional systems and methods.


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