Choosing Resiliency: Lessons from Hurricane Michael
Doug Allen, P.E., a structural engineer with Simpson Strong-Tie, looks at the choice homeowners in disaster-prone areas face between simply building to code and building to standards of resilience or IBHS FORTIFIED Home™ standards instead.
Resilience, or resiliency: The capacity to...
Question of the Day:
Gable End Frame Connections and Bracing
I was asked recently why Component Manufacturers (CMs) do not provide the bracing details and holdowns for gable end frames like they do for the common trusses. The question got me thinking because the details are readily available, as are any mechanical connectors that might be needed to...
Code Report: Understanding Allowable Load Changes
The Simpson Strong-Tie® 2019–2020 Wood Construction Connectors catalog is the first in the industry with updated connector allowable load tables to meet the new ASTM test standards required by the 2015 and 2018 International Building Code® (IBC®). It is designed to...
Questions Answered: Resisting Uplift with Structural Fasteners
Of course you know about creating a continuous load path with either connectors or rod tiedown systems, but have you considered using fasteners instead? In this article, Bryan Wert follows up on our May 2 webinar, Drive a New Path: Resisting Uplift with Structural Fasteners, by answering some of...
Holdown Anchorage Solutions
A couple years ago, I did a post on selecting holdown anchorage solutions. At the time, we had created a couple engineering letters that tabulated SSTB, SB and PAB anchor solutions for each holdown to simplify specifying anchor bolts. About a year later, a salesperson suggested we tabulate SSTB,...
2018 Wood Design Standards Available Online
The recent approval of the 2018 International Building Code (IBC) and International Residential Code (IRC) is of keen interest to professionals in the construction industry as it often means expanded options for structural applications. In support of these two codes, the American Wood Council...
Truss-to-Truss and Truss-to-Everything Else Connections
One of the questions I am asked most frequently is “Who is responsible for the truss-to-(fill in the blank) connection? One such example is the truss-to-wall connection. To answer this question, it helps to recognize there are two types of connections: a truss-to-truss connection and a...
So What is the Big Deal About Member to Member Gaps?
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...
Designing Overhangs on Gable Ends
It seems that each major hurricane tends to teach those of us in the construction industry some lesson. With Hurricane Andrew, the lessons were the importance of protection from windborne debris, and the importance of proper construction of gable ends.
There are two main areas where gable...
How to Select a Connector Series – Holdowns
This article discusses how to select holdowns and tension ties, which are key components in a continuous load path. They are used to resist uplift due to shearwall overturning or wind uplift forces in light-frame construction. In panelized roof construction, holdowns are used to anchor concrete...