Tech Tip: Stabilizer Plates in SDS/2
According to the AISC 14th Edition Manual, stabilizer plates in an extended shear plate configuration are not required when the required shear strength is equal to or less than the available strength to resist lateral displacement. (Please refer to the Requirement for Stabilizer Plates section found in the AISC 14th Edition Manual on Page 10-105 for more information on these requirements.)
When designing connections using either the ASD 14 or LRFD 14 design methods, SDS/2 takes these AISC requirements for stabilizer plates into consideration to determine if they should be provided or not. You can choose to ignore these requirements and always provide stabilizer plates by turning on the option Always provide stabilizer plates, found in Job or Fabricator Options, as shown in Figure 1.
When stabilizer plates are provided, if half the column flange minus k1 distance is less than 4 inches, the stabilizer plates extend to the column web. Otherwise, they extend from the k1 distance to the toe of the flange. In SDS/2 2015, you can force the stabilizer plates to extend to the column web by setting the option Extend stabilizer plates to Web, found in Connection specifications, as shown in Figure 2.
Industry News Roundup: February 5, 2015
This week’s news resources:
We're hosting Basic Training at the Design Data office next week. Learn more about training on our website.
Super Bowl 50's Levi Stadium incorporates more than 23,000 tons of steel. Read on at Alliance for American Manufacturing to learn about how this American-made stadium completed a year earlier than expected because of it's all-American steel sourcing.
See how the Ribbon Bridge of Light will replace the aging Sixth Street Viaduct in Los Angeles from Dezeen Magazine. Demolition of the old bridge begins this week.
Check out this list of five construction mega projects to look out for in 2016 from Building Radar.
In case you missed our latest blog:
SDS/2 customer Johnson Machine Works used SDS/2 for the replacement of the slide gate at Big Creek Lake Diversion Dam. See how SDS/2 made the project possible in our blog.
Customer Profile: Johnson Machine Works, Inc.
Chariton, Iowa-based Johnson Machine Works, Inc.'s portfolio includes not only structural steel fabrication for commercial buildings, but heavy fabrication projects as well. Those projects typically consist of fabrication with tight tolerances, machined surfaces and machined components.
The company's work on the Saylorville Lake/Big Creek Diversion project highlights some of these specialties, and showcases the flexibility of SDS/2.
The $9.3 million project involves replacement of the slide gate structure at Big Creek Lake Diversion Dam, which has been inoperable since 1998. The dam gate is one of several flood-control structures that protect Polk City, Iowa, residents during high water events.
Although some of the machined components are not what the software was designed to do, Johnson Machine Works' Jason Unger points out that, "the capabilities available to the SDS/2 user with features such as turned solid element and material fuse have proven to be very valuable in creating axles, shafts, bushings, wheels and other turned features with chamfered edges."
To learn more about Johnson Machine Works, visit their website.
If you'd like to see your company or project featured in future issues of The Connector, please send a project description and images to Michele Arnett.