This five-part webinar series covers the 2018 IRC wall bracing provisions. The series begins with a one-hour introductory session covering load path, lateral forces and limitations to wall bracing. Additional sessions address related topics, including the simplified wall bracing method and bracing for higher seismic and wind zones.
Series presenters include Aleeta Dene, P.E., Larry Oenning, P.E., Matthew Brown, Ron Nuttall and Warren Hamrick, APA Engineered Wood Specialists experienced in providing engineered wood product building and design support and recommendations. APA has collaborated with code bodies since the 1950s to improve wall performance and reduce the risk of catastrophic home failure through the development of prescriptive wall bracing techniques that specify plywood and OSB wood structural panel sheathing.
AIA and ICC credit is available to participants.
Wall Bracing I: IRC Load Path, Lateral Forces and Limitations
Part one covers:
• Horizontal forces acting on a house and how they are resisted
• Code-prescribed limitations to prescriptive wall bracing
• Introduction to braced wall lines
Presenter: Matthew Brown
Wall Bracing II: Meeting the IRC Bracing Provisions for Wind and Seismic
Part two begins with braced wall panel options and then goes through the steps to determine the required length of bracing for wind and, if required, seismic.
• Detail the 12 code prescribed intermittent bracing methods
• Detail the four code prescribed continuous bracing methods
• Determine required length of bracing and placement requirements
Presenter: Ron Nuttall
Wall Bracing III: Simplified Wall Bracing & APA Wall Bracing Calculator for the 2018 IRC
In part three we work through some examples using what we learned in parts one and two. We then review the IRC Simplified Wall Bracing, APA Simplified Wall Bracing and introduce the APA Wall Bracing Calculator.
• Apply the IRC Wall Bracing provision to example plans
• Understand both the IRC and APA simplified methods
• Input plan information into the APA Wall Bracing Calculator
Presenter: Warren Hamrick
Wall Bracing IV: Wall Bracing in High Seismic SDC D0–D2 Regions
Part four provides a comprehensive look at residential code requirements in high seismic regions, including limitations and detailing requirements.
• Appreciate the differences designing with the IRC versus the IBC
• Understand the limits of IRC wall bracing in high seismic regions
• Be able to design IRC wall bracing for seismic forces in SDC D0–D2
• Understand when mixing IRC wall bracing types is allowed and prohibited
Presenters: Aleeta Dene, P.E., and Larry Oenning, P.E.