The truss industry follows the requirements of the building code and ANSI/TPI 1 for general project scope of work concepts.
The Truss Designer identifies the location of required individual truss member lateral restraint and diagonal bracing on each Truss Design Drawing.
The JOBSITE PACKAGE can prove invaluable in documenting that the CM provided industry best practices on truss bracing, particularly when a project goes in a bad direction.
CMs deal with customers with a wide range of skill sets, including those who have drawn their house plans on a McDonald’s paper napkin. I wish I were making this up!
While CMs are not responsible for ensuring that customers brace jobs correctly, they can provide BCSI documents to help customers build a better building and stay safe.
The BCSI book and B-Series Summary Sheets are a CM's saving grace, especially if the customer plans to install the trusses on their own or not hire an engineer of record.
In case you ever needed a picture to define the importance of diagonal bracing in the context of lateral restraint (i.e., top chord purlins as well), these photos of long span trusses say it all.