July Meeting

  • 28 Jul 2016
  • 11:45 AM - 1:00 PM
  • Maggiano's Little Italy - Domain
  • 1


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The “Short Story” on Column Shortening: How to Stay Level in an Ever-Changing World

Adam Johnson, P.E., S.E., LEED AP
Walter P. Moore

This presentation will review the different components of column or wall shortening, and methods and models for quantifying these components and compensating for them during construction.  Finally, the presentation will review a case study for a 45 story office building where differential shortening was not properly considered and after construction the floors were out of level by up to 5 inches from the core to the perimeter

As Austin grows vertically and requires larger and taller buildings new structural design considerations must be considered.  Calculating column and wall shortening can be a complicated procedure with many variables and moving targets, and requires collaborative decisions between the design professional and construction team.  It is critical that these calculations be done correctly, especially in high-rise construction, or the end result could be un-level floors or damage to non-structural components.

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