This course provides comprehensive training on wood framed wall bracing design according to the 2021 International Residential Code.
This is the first part of a two part series on wall bracing design. The course covers the seismic and wind design criteria, weight and height limitations in conventional framing, braced wall lines and the most common wall bracing methods permitted in the international residential code. This course includes examples to show the application of the concepts discussed.
5 Hours [ 0.5 CEUs ]
This is an On-demand course which means that you can take it at your pace.
This section covers the following.
The distinction between engineered and prescriptive design.
The International Residential Code - State adoption and amendment.
The wall bracing course outline.
This section covers the following.
Introduction to the seismic design criteria.
Ground motions and seismic hazard risks.
The determination of seismic acceleration parameters and the seismic design category (SDC).
How seismic forces are generated in buildings.
The relationship between period and seismic acceleration parameters.
How ground characteristics (site class) affects ground motions.
Determining seismic acceleration parameters from the ASCE 7 hazard tool.
The scope of the IRC as far as the seismic design category is concerned.
Reclassification from Seismic Design Category E to D2
This section covers the following:
The types of wind loads that are considered in design.
The design wind speed and the determination of the wind design criteria.
Special wind regions.
The determination of the wind exposure category.
In this section, we will look at the general constrains imposed by the residential code on the weights of construction materials and the heights of building elements. We will consider the following.
Roof and ceiling assembly weight load limits
Floor assembly weight limits.
Exterior and interior wall weight limits.
Story height limits.
Stud height limits and exceptions.
Snow load limits.
An example project showing how this information is provided on the plans. We will verify that the information provided on the drawings is code compliant as far as the scope of this section is concerned.
This section covers the following:
The role of braced wall lines.
The placement of braced wall lines.
Code requirements on braced wall line spacing.
The determination of the length of a braced wall line.
Offsets between braced wall lines and the associated braced walls.
Braced wall lines and angled walls.
A project example on the application of braced wall lines on a framing plan. We will verify that the wall bracing layout provided is code compliant.
In this section, we will cover the framing requirements of the most common bracing methods including:
Intermittent Bracing Methods - Method WSP, GB, PCP, ABW, PFG, PFH, BV-WSP
Continuous Sheathing Method - Method CS-WSP, CS-G, CS-PF.
Additionally, we will cover the following.
Wood structural panels conformance standards.
The mechanics of overturning forces and the application of holdowns.
The properties and selection of holdowns from the manufacturer (Simpson) catalogue.
The selection and design consideration for anchor bolts at the holdowns.
The properties and selection of strap ties from the manufacturer (Simpson) catalogue.
A project example verifying code compliance of design drawings with intermittent bracing methods.
A project example verifying code compliance of design drawings with continuous sheathing methods.