Paul McEntee, S.E.

Why Fire-Rated Hangers Are Required in Type III Wood-Frame Buildings

Paul McEntee

One of the first mixed-use designs I worked on as a consulting structural engineer was a four-story wood-frame building over two levels of parking. Designing the main lateral-force-resisting system with plywood shearwalls was a challenge for this project that required new details to meet the...

#15289 Cover image
August 2023
Issue #15289
Page 108
Paul McEntee, S.E.

The H1A Hurricane Tie – An Update for a Classic

Paul McEntee

Simpson Strong-Tie recently released an updated model of our H1 – now the H1A. As a consulting engineer, I remember how much I disliked updating my standard details when products were discontinued. I thought it would be informative to explain the modifications and some of the reasons for...

#15288 Cover image
July 2023
Issue #15288
Page 108
MiTek Staff

Load Duration Factor

MiTek Staff

Lumber has ability to handle higher stresses under shorter periods of time. This characteristic is known as Load Duration Factor. Load Duration Factor typically ranges from 0.9 to 1.6 and is based on the amount of cumulative time the load is applied to the structure. Per the National Design...

#15287 Cover image
June 2023
Issue #15287
Page 92
Paul McEntee, S.E.

Mass Timber Diaphragm Options with Four Different Connection Types — How Our LDSS48 Light Diaphragm Spline Strap Evolved

Paul McEntee

Floors and roofs on mass timber buildings are constructed from large panels of engineered wood, such as cross-laminated timber (CLT) or mass plywood. Designers join these prefabricated panels together on site to create a structural horizontal diaphragm to transfer wind and seismic loads to the...

#15286 Cover image
May 2023
Issue #15286
Page 96
Geordie Secord

Design Connections: Is There Ever Just One Right Way?

Geordie Secord

If you have spent your truss career in one region, and even more so with just one company, you will have seen that, generally speaking, your competitors and co-workers tend to frame houses essentially the same way. Only when you are exposed to a different company or region do you start to see...

#15284 Cover image
March 2023
Issue #15284
Page 80
Randy Shackelford, P.E.

Top Structural and Wood-Related Changes in the 2021 IRC, Part 1

Randy Shackelford

The ICC code change cycle for the 2024 International Codes is near completion, with only the certification by the Validation Committee and confirmation by the ICC Board of Group B results outstanding. However, many jurisdictions may just now be adopting the 2021 International Codes. This is the...

#15282 Cover image
January 2023
Issue #15282
Page 108
Randy Shackelford, P.E.

Hurricane Andrew — a 30-Year-Old Learning Experience

Randy Shackelford

This August marked the 30th anniversary of the Florida landfall of Hurricane Andrew, one of the most damaging, and influential, hurricanes ever to hit the United States. Hurricane Andrew hit South Florida with Category 5 winds early on the morning of August 24, 1992. Andrew caused damages of $25...

#14279 Cover image
October 2022
Issue #14279
Page 122
Lecil Alexander

Comments on “The Enduring Problem of Truss Partition Separation”

Lecil Alexander

When I saw the article on ceiling separation, The Enduring Problem of Truss Partition Separation, written by my friend Frank Woeste in the November issue of The Advertiser, I was excited to read it. As Frank writes, this problem has been around since there has been a metal plate connected wood...

#12257 Cover image
December 2020
Issue #12257
Page 100
Doug Allen, P.E.

Damage Assessment and What It Teaches Us About How to Build Stronger

Doug Allen

Over the past few years that I’ve worked as an engineer for Simpson Strong-Tie in Texas, work-related events have brought me to a few great beach destinations: Clearwater and Destin, Florida, to name a few. But tightly packed schedules always left me feeling like I didn’t get to...

#12257 Cover image
December 2020
Issue #12257
Page 116
Frank Woeste. P.E.

All Things Wood: The Enduring Problem of Truss Partition Separation

Frank Woeste

For more than 40 years, truss partition separation, often loosely referred to as “truss uplift,” has been a practical (and annoying) issue for homeowners and homebuilders. While it was first investigated at the field level and researched in the laboratory in the 1970s, an October...

#12256 Cover image
November 2020
Issue #12256
Page 78
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