Archive for September 2013
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Steel Shots: SteelDay is Coming!
Posted by Tasha Weiss on September 16, 2013 at 2:18 PM.
Hanging from the United Unions building in Washington, D.C., this sign proclaims the upcoming fifth annual SteelDay, the structural steel industry’s largest educational and networking event, celebrated nationwide. Photo: AISC
Less than one month left until the structural steel industry’s fifth annual SteelDay, Friday, October 4! Have you made your plans yet?
Visit www.SteelDay.org/FreeEvents to find and register for a free event in your area. This year’s national event is expected to be celebrated at more than 100 locations around the country and, once again, offers free educational and networking opportunities for the design and construction community and the public.
SteelDay offers a wide range of activities all over the country, from shop tours in small towns to flagship events in major metropolitan areas including New York City, Chicago, Washington, D.C., and others. Can’t make it to an in-person event? Live webinars are also available.
To learn more about this year’s SteelDay, visit www.SteelDay.org. Still not sure why you should attend? Watch this video to find out!
FabTrol to Demonstrate New Software at SDS/2 Conference
Posted by Tasha Weiss on September 13, 2013 at 10:18 AM.
FabTrol Systems (an AISC member), a developer of steel fabrication management software, will demonstrate its new change order management software–a system designed to help steel fabricators track and substantiate project changes–at this year’s SDS/2 Users Group Conference next week in Omaha, Neb.
FabTrol Systems’ account manager, Sara Melendrez, will demonstrate the change order system on Wednesday, September 18, at 4:50 p.m. (in Room Number 1). In her talk, “Track, Substantiate and Charge for Changes,” Melendrez will demonstrate how the change order system, a recent addition to FabTrol Pro, the company’s reengineered fabrication management software, helps fabricators ensure overall project success by effectively managing the frequent changes that occur on construction jobs.
The new system, fully integrated with FabTrol Pro’s drawing management and RFI systems, capitalizes on FabTrol Pro’s ability to manage in-contract drawings and their revisions to ensure that all necessary information and documentation is readily available to substantiate equitable cost and schedule adjustments associated with a change order request.
A bronze sponsor of the event, FabTrol Systems will also have an exhibit (Booth No. 01) where conference attendees can learn more about its software solutions, including FabTrol Rev, the company’s drawing and document management system designed specifically to integrate with FabTrol Pro and meet the needs of the AEC industry.
To learn more about FabTrol Systems’ software solutions, visit www.fabtrol.com or email email@example.com.
AISC Releases New Design Guide for Structural Stainless Steel
Posted by Tasha Weiss on September 12, 2013 at 3:13 PM.
U.S. design professionals now have an authoritative resource on structural stainless steel in AISC Steel Design Guide No. 27, Structural Stainless Steel, authored by Nancy Baddoo, associate director at the Steel Construction Institute (SCI), U.K. This new publication provides guidance for the design of structural hot-rolled or welded open sections such as wide-flange members, channels and equal-leg angles, as well as rectangular and round hollow structural sections (HSS).
“Up until now, there have been no specifications or guidelines for the design of structures fabricated from hot-rolled stainless steel plates or shapes,” said Ted Galambos, Ph.D., P.E., emeritus professor of structural engineering at the University of Minnesota in Minneapolis and a reviewer of Design Guide No. 27. “This document, for the first time in the U.S., will show designers how to proportion stainless steel beams, columns, frames and connections that are fabricated from hot-rolled components. With this new design guide, it will be an easy task to expand the arsenal of engineers.”
The publication is intended for engineers experienced in the design of carbon steel structural components, but not necessarily in the design of stainless steel structures, and is aligned with the design provisions in the 2010 AISC Specification for Structural Steel Buildings. It applies to austenitic, duplex and precipitation hardening of stainless steel structural sections with a thickness of 1/8 in. (3 mm) and greater.
The major topics covered in this guide are material behavior and selection, cross-section design, member design, connections and fabrication. Design examples are also included.
In addition to AISC and SCI, the following groups assisted in the creation of Design Guide No. 27: International Chromium Development Association (ICDA), International Molybdenum Association (IMOA), International Stainless Steel Forum (ISSF), Nickel Institute, Outokumpu, Specialty Steel Industry of North America (SSINA), Stainless Structurals LLC, Stalatube and the Steel Institute of New York (SINY).
The new design guide is available as a free download to AISC members and at a price of $60 for nonmembers at www.aisc.org/dg. The printed copy is also available at this link or by calling 800.644.2400 (product code: AISC 827-13); the cost for the printed copy is $40 for members and $80 for nonmembers.
To coincide with the release of the new design guide, the Steel Institute of New York is offering a full-day seminar on September 18 at the McGraw-Hill Auditorium in New York City. This seminar will provide a section-by-section description of the guide, given by the authors, and case study discussions of projects from around the world illustrating stainless steel’s structural applications.
Visit the Steel Institute of New York’s website to register for the seminar or view the agenda.
Steel Artifacts in Place as 9/11 Museum Nears Completion
Posted by Tasha Weiss on September 11, 2013 at 4:39 PM.
As the nation observes the 12th anniversary of 9/11 today, construction is progressing on the 9/11 Memorial Museum, which features steel artifacts such as two steel “tridents” from the original Twin Towers and the “Last Column.”
The three-pronged steel tridents, part of the World Trade Center facade, are on display in the Museum’s grand glass atrium, where they are visible from the outdoor Memorial. Photo: Amy Dreher, 9/11 Memorial
Standing 36 ft tall, the Last Column is planted as the centerpiece in a space called Foundation Hall. The 58-ton steel column was removed from the original site in a ceremony that marked the official end of the recovery effort. It is adorned from its base to the top with photographs, prayer cards and other tributes left by first responders and recovery workers.
To date, 24 large artifacts have been permanently installed inside the Museum. Of those, 19 are located within the historical exhibition, which will chronicle the history of 9/11 and explore its continued impacts.
“The progress inside the Museum has been remarkable. As we move toward the Museum opening in the spring 2014, it is rewarding and deeply moving to see this historical institution taking shape,” said 9/11 Memorial president Joe Daniels. “From iconic pieces of steel carrying messages of the recovery effort to rescue vehicles representing the bravery and courage of our first responders, these artifacts will preserve the powerful story of 9/11 for generations to come.”
More than 8,000 tons of structural steel was used in the 9/11 Memorial and Museum; the Memorial nears its third year of operation at the World Trade Center site. To learn more about the 9/11 Memorial and Museum, visit www.911memorial.org.
Other significant milestones at the site include the completed steel installation at the 1 World Trade Center and 4 World Trade Center towers. For more information on the World Trade Center’s construction progress, visit www.panynj.gov/wtcprogress.
Steel Sculpture Competition Entry Deadline Extended
Posted by Tasha Weiss on September 10, 2013 at 11:38 AM.
The deadline for entering AISC’s Steel Sculpture Competition has been extended to Friday, October 4 (SteelDay!).
If you’re an AISC full or associate member, join this year’s competition and enter your own innovative steel creation for a chance to be one of five finalists to have your sculpture on display at the 2014 NASCC: The Steel Conference, March 26-29, in Toronto, where the ultimate winner will be chosen by attendees.
The winner will be featured in MSC (see this year’s winner in our June 2013 issue), as well as AISC’s social media pages, and will receive a catered lunch for their company (up to a $500 value).
Additional information and rules for entering can be found at www.aisc.org/sculpture.aspx.
Steel Shots: World’s Tallest Lego Tower
Posted by Tasha Weiss on September 6, 2013 at 5:25 PM.
An internal steel mast, designed by Pennoni Associates structural engineers, provides the lateral support for the tallest Lego structure ever built. The 11-story creation stands at 112 ft, 11 3/4 in. high and is made up of more than 500,000 interlocking plastic bricks, which were assembled by students of Delaware’s Red Clay School District. Contractors volunteered to place the segments together last month using cranes and lifts. (Click on the photo for a full view of the structure.) Photos: Courtesy of Pennoni Associates
Guinness World Records has certified Delaware’s Red Clay School District’s 112 ft, 11 3/4-in. high tower as the tallest tower constructed of interlocking toy bricks. And it’s supported by steel.
In preparation for setting the new record, Pennoni Associates volunteered to design the internal steel mast that would provide the lateral support required to prevent the tower from toppling over. The tower, constructed of Legos, was required to be freestanding and therefore could not be supported vertically from the steel mast. However, lateral support of the tower was required due to the forces from wind gusts that could easily cause the tower to collapse.
“When it comes to a tower this tall, Lego bricks are much more than child’s play and we were fortunate to have professionals, including Pennoni Associates, to make sure the tower was safe and successful,” said the district’s Assistant Superintendent Ted Ammann.
The steel mast was designed as a series of steel HSS ranging in size from 6 in. in diameter at the base to 3 in. at the top of the tower. The frame was built in 20-ft sections and engineered to slide into one another to make erection and disassembly easier. At each section, a 1/4-in.-diameter tensioned guy-wire was attached to a gusset plate welded to the HSS to provide support for the HSS itself.
Six guy-wires were installed in each cardinal direction to brace the HSS for wind loads in any direction, for a total of 24 guy-wires in all. Four large concrete mass anchors were cast into the ground 60 ft from the tower base in each direction to anchor the guy-wires to the ground. A large concrete foundation was also cast at the base of the tower to support both the steel mast and the Lego tower itself.
The theory behind the design is that the steel mast and guy-wire assembly is a self-supporting stable structure. The Lego tower was built in sections and placed around the steel mast, with careful consideration and planning so that the tower did not touch the mast at any location. Voids were left in the tower at the gusset plate locations to allow the guy-wires to connect to the steel mast without touching the Lego tower itself. As wind blows on the Lego tower, the structure will deflect until it makes contact with the steel pipe inside the tower, which will resist the loads caused by the wind, and prevent the tower from toppling. As the wind calms, the tower will restore to its original shape.
Video: IDEAS2 Award Winner Talks Choosing Steel
Posted by Tasha Weiss on September 6, 2013 at 1:30 PM.
Conducted annually by AISC, the IDEAS2 awards recognize outstanding achievements in engineering and architecture on steel-framed building projects throughout the U.S. And each year, awards for each winning project are presented to the project team members involved in the design and construction of the structural framing system. Unlike most industry award programs, however, AISC presents the awards to the team members in a ceremony that takes place at each winning project site across the country.
The team of The Corner Condominiums project in Missoula, Mont., received its IDEAS2 awards last month at the building. During the presentation, AISC’s Larry Flynn conducted a video interview with Eric Hefty of Eric Hefty & Associates, the owner, developer, architect and general contractor of the project. In the video, Hefty talks about his fondness for structural steel and his use of weathering steel cladding.
Visit AISC’s YouTube channel at www.youtube.com/aiscsteeltv to watch the video. At the link you’ll also find another video that highlights all of this year’s winning projects.
More information about the IDEAS2 awards program can be found at www.aisc.org/ideas2.
Fall Educational Opportunities
Posted by Tasha Weiss on September 4, 2013 at 5:10 PM.
Now that the dog days of summer are almost over, here are a few AISC educational opportunities to get you geared up for fall:
- AISC’s Fall Seminar Series is coming to a town near you! The series will be offered in 20 cities around the U.S. from September 11 to December 5. This year’s fall seminar focuses on the new Seismic Design Manual and application of the 2010 AISC Seismic Provisions. To find a seminar location near you and to register, visit www.aisc.org/seminars.
- Classes begin September 24 for AISC’s Night School program, an evening curriculum of online courses on relevant structural steel design topics. The fall course focuses on “Basic Steel Design - A Review of the Principles of Steel Design According to ANSI/AISC 360-10” and consists of eight weekly 1.5-hour webinar sessions. For more information and to register, visit www.aisc.org/nightschool.
- Only one month until the structural steel industry’s fifth annual SteelDay, Friday, October 4. Have you made your plans yet? If you haven’t registered for an event yet, there’s still time! Visit www.SteelDay.org/events to find and register for an event in your area. This year’s national event will be celebrated at more than 100 locations around the country and, once again, offers free educational and networking opportunities for the design and construction community and the public. To learn more, visit www.steelday.org.