Glenn Traylor

How Will the Changes to ANSI/TPI 1 Impact Your Truss Builders and In-House Inspectors?

Glenn Traylor

As we migrate from ANSI/TPI 1-2014 to ANSI/TPI 1-2022, it is important to discuss and be aware of Chapter 3 updates. These changes impact QC inspections and should be understood by your in-house QC inspector and your truss builders. The changes are in two categories in Chapter 3 — a...

#17312 Cover image
July 2025
Issue #17312
Page 31
Landon Boucher

Striking Gold with Posi-Strut in Carson City

Landon Boucher

A large part of what MiTek’s Design Engagement team does involves meeting with Structural Engineers, Architects, and Real Estate Developers to advance the use of components. We guide them on best practices early in design so that when construction documents arrive at the truss...

#17312 Cover image
July 2025
Issue #17312
Page 62
MiTek Staff

Changes in Flat Roof Snow Calculation in ASCE 7-22

MiTek Staff

Chapter 7 of ASCE 7-22 (Minimum Design Loads and Associated Criteria for Buildings and Other Structures) introduces significant changes that affect the magnitude of snow loads and, consequently, truss design. While some of these changes reduce snow load values, others increase them. One of the...

#17312 Cover image
July 2025
Issue #17312
Page 108
Joe Kannapell, PE

Home Building Technology, Part VI: The Original Wood Truss Manufacturers

Joe Kannapell, PE

Although last month’s article in this series, “Home Building Technology, Part V: Early Truss Connection Innovators,” brought our story up to the post-war time period, we would be remiss without acknowledging the original truss manufacturers in greater detail. A small group of...

#17311 Cover image
June 2025
Issue #17311
Page 10
Joe Kannapell, PE

Home Building Technology, Part V: Early Truss Connection Innovators

Joe Kannapell, PE

Three midcentury forces converged to form the truss business we know today. First came the deluge of demand for affordable housing after World War II. Then came the prefabbers who addressed that need with trusses. And finally came the connector that made trusses into a blockbuster...

#17310 Cover image
May 2025
Issue #17310
Page 10
MiTek Staff

Multiple-Ply Girder Load Distribution Change in ANSI/TPI 1-2022

MiTek Staff

Girder trusses are trusses specially designed to carry extra load from tie-in trusses and equipment. If a single ply is insufficient to carry the entire load, the truss designer specifies a multiply girder, that is made of identical trusses and fastened together to act as one unit to support the...

#17310 Cover image
May 2025
Issue #17310
Page 138
Alpine Team

Hand Calculations for Maximum Gravity Reaction on Truss Design Drawings

Alpine Team

Building engineers rely on maximum gravity reactions (R+) from Truss Design Drawings (TDD) to design structural components. These maximum reactions are calculated based on load combinations specified by building codes, representing the highest downward forces which allow engineers to determine...

#17309 Cover image
April 2025
Issue #17309
Page 131
MiTek Staff

The Evolution of Product Testing in Engineering and Manufacturing

MiTek Staff

Product testing is the backbone of quality control in engineering and manufacturing, ensuring products are reliable, durable, and safe before reaching the market. Over the years, the testing processes have evolved dramatically, transitioning from manual inspections to highly sophisticated...

#17309 Cover image
April 2025
Issue #17309
Page 140
Simpson Strong-Tie Staff

Using Truss Self-Weight

Simpson Strong-Tie Staff

A benefit of using Simpson Strong-Tie’s CS Truss Studio™ is managing the relationship between the truss self-weight and the dead load. Truss self-weight is checked against all applied dead loads to verify that there is enough assumed “extra” dead load to account for the...

#17309 Cover image
April 2025
Issue #17309
Page 148
Jay Jones, P.E.

What the Latest ANSI/TPI-1 Updates Mean for Truss Designs

Jay Jones, P.E.

The ANSI/TPI 1 standard is a critical document that governs the design and quality criteria for metal plate-connected wood trusses. It serves as a guideline for truss manufacturers and engineers alike, providing the technical framework to design and construct reliable and code-compliant trusses...

#17308 Cover image
March 2025
Issue #17308
Page 116
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