When Fashion Affects Structure—Floor Design Considerations for Preventing Tile and Stone Cracks Frank Woeste Two kinds of designers are involved in home construction—design professionals responsible for the structure and the interior-focused designers responsible for the final appearance. Although these roles can overlap, it is important for design professionals to be aware of in-service demands... Read More June 2018 Issue #10227 Page 60
Do You Need 100% Inspected for Proper QA? Glenn Traylor A process that requires the inspection of each individual unit or component received from a process or manufacturer is said to be “100 percent inspected.” When fabricators initially consider a quality program, this is what they imagine is necessary. This 100% process, however, is... Read More May 2018 Issue #10226 Page 26
Protect Yourself by Understanding Design Responsibilities Shawn Overholtzer ANSI/TPI 1 is the National Design Standard that establishes the minimum requirements for the design and construction of metal-plate-connected wood trusses. Chapter 2 defines the design responsibilities. As a truss technician or a component manufacturer, you are not responsible for specifying the... Read More February 2018 Issue #10223 Page 16
New Codes are Coming Joe Kannapell With the New Year comes new International codes, IBC and IRC 2018 (referred to as the I-Codes), and fortunately, few changes to truss designs. These changes are the result of the revised design criteria contained in ASCE 7–16, which IBC 2018 relies upon. Very few jurisdictions will... Read More January 2018 Issue #10222 Page 6
From Structural Plans to Truss Designs – Collaborative Effort or Review Nightmare? Kelly Sias In an ideal world, a building is envisioned and a structural engineer begins the structural design. When the decision to use roof trusses is made, a component manufacturer is promptly involved in the design process. Using the loads and design parameters from the structural engineer, the trusses... Read More January 2018 Issue #10222 Page 94
Accommodating Truss Movement (Besides Vertical Deflection) Kelly Sias Vertical deflection resulting from live and dead loads – of both roof and floor framing components – is an important serviceability consideration in the overall design of the building. And while this could be a topic in and of itself, this article is instead going to focus on two... Read More August 2017 Issue #10217 Page 82
Protect Yourself by Understanding Design Responsibilities Simpson Strong-Tie Staff ANSI/TPI 1, Chapter 2 As a truss technician or component manufacturer, have you ever been asked to perform duties that fall outside of ANSI/TPI 1, Chapter 2 guidelines? We know in our previous roles as truss technicians and component manufacturers, we were often requested to perform a task... Read More July 2017 Issue #10216 Page 92
So What is the Big Deal About Member to Member Gaps? Glenn Traylor Compliance with ANSI/TPI 1–2014 requires maintaining member to member gaps at less than 1/4 inch. An exception would be for floor truss chord splices where the limit is 1/16 inch. Let us take a look at two different situations, the first being a roof truss and the second being a 4 x 2... Read More June 2017 Issue #10215 Page 30
Treated Lumber and Trusses (and the One Condition Under Which MPC Wood Trusses Shouldn’t Be Used) Kelly Sias What do a chicken house, a water treatment plant and a raised wood floor system all have in common? Very likely, they all involve preservative-treated lumber. They’re also all examples of common environments in which preservative-treated, metal-plate-connected (MPC) wood trusses may be... Read More May 2017 Issue #10214 Page 76
Question of the Day: Scope of Work and Responsibility Stan Sias “As a CM, how do I best convey my intended and assumed scope of work and overall responsibility to all parties involved in the construction of a project I am bidding? I don’t want to be held responsible for something I haven’t bid.” This is a terrific question and... Read More November 2016 Issue #09208 Page 4