DES440 – Primer for the Use of Cross-Laminated Timber

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Increased availability of cross-laminated timber (CLT) in North America, combined with successful use in projects worldwide, has generated interest in its properties and performance within the U.S. design community. With the inclusion of CLT in the 2015 International Building Code (IBC) and 2015 National Design Specification® (NDS®) for Wood Construction, curiosity is evolving throughout the construction industry to use CLT in projects. Applications for the use of CLT include roof and floor systems as well as wall systems. This presentation will cover the available U.S. design standards and methods being used by engineers on these projects.

Level: Beginner
Primary Audience: Engineers, Code Officials

Learning Objectives:

  1. Discuss product manufacturing and design standards relevant to cross laminated timber (CLT), and identify where these standards are recognized in the International Building Code.
  2. Consider the structural design properties of CLT relevant to floor and roof applications.
  3. Discover how to design CLT floors to achieve serviceability goals related to deflection and vibration.
  4. Examine the use of CLT in example buildings and connection details.
Equivalencies: 2.0 Hours of Instruction = 0.2 Continuing Education Units (CEU) = 2 Professional Development Hours (PDH) = 2 Learning Units (LU)


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