Steel in the News
Help Us Choose Our New MSC Logo
Posted by Tasha Weiss on November 21, 2013 at 10:23 AM.
We’re updating our Modern Steel Construction logo, and we’d love your input!
How? Visit AISC’s Facebook page (direct link to choose our logo: www.modernsteel.com/ChooseOurLogo) and “like” the image of your favorite MSC cover; you can only vote once.
The most “liked” logo will be unveiled on the cover of our January 2014 issue.
Anyone with a Facebook account can “like” the images to vote, so feel free to share the link with your friends!
Don’t have a Facebook account but you have a Twitter handle? You can “tweet” @aisc or @modernsteel with the number of your favorite logo in the order of cover images contained in the “Choose Our New Logo” photo album at www.modernsteel.com/ChooseOurLogo.
Voting will be open until next Wednesday, November 27.
Questions? Email AISC’s Victoria Cservenyak at firstname.lastname@example.org.
Vote for Your Favorite BIM Project by Nov. 30
Posted by Tasha Weiss on November 19, 2013 at 5:46 PM.
Online voting for this year’s Tekla Global BIM Awards is open to the public until November 30.
This annual international competition showcases many of world’s most impressive structural designs modeled by Tekla (an AISC member) software. These include a variety of building and construction projects, from industrial projects to bridges and stadiums.
Project entries are winners of the local BIM Awards competitions held earlier this year and are divided into five categories: Total BIM Projects; Engineering Projects; Cast in Place Projects; Steel Projects; and Precast Projects.
This year, 46 projects from 18 countries are competing in the global competition — 21 of which are steel. The steel category presents exceptionally challenging or progressive steel projects modeled and managed using Tekla software.
The winners of each category in the competition will be decided by a jury of leading BIM experts, both from inside and outside Tekla.
One model will be awarded as the public favorite project through web voting. All web voters will be entered into a drawing for a chance to win a Motion J3600 Tablet PC; you can only vote once.
For additional information and to vote for your favorite project entry, visit www.tekla.com/global-bim-awards-2013/ind
ex.html. The winning projects will be announced in January.
2014 NASCC Registration Now Open
Posted by Tasha Weiss on November 19, 2013 at 10:27 AM.
More than 3,500 structural engineers, steel fabricators, erectors, detailers and educators are expected to descend on Toronto this March 26-28 for the 2014 NASCC: The Steel Conference, the premier educational event for everyone involved in the design and construction of fabricated steel buildings and bridges. Presented by AISC, this massive three-day event will take place at the Metro Toronto Convention Centre and offer more than 100 technical sessions, more than 200 exhibitors and plentiful networking opportunities. Registration for the conference is now open at www.aisc.org/nascc.
The Steel Conference offers dynamic, expert-led seminars on the latest design concepts and construction techniques for buildings and bridges, as well as an extensive trade show featuring cutting-edge technologies and products ranging from structural software to state-of-the-art fabrication equipment. It’s a once-a-year opportunity to learn about the latest trends, see the most innovative products and network with peers and clients.
Unlike other conferences that issue a general call for papers, The Steel Conference carefully selects topics of interest and then seeks out the top experts and presenters. Some of the presenters are very well known, while others may not be household names but still bring a distinct expertise to the program. This year, attendees will learn about the new direct analysis method and the Code of Standard Practice, as well as explore the practical aspects of designing for torsion and what really matters in weld inspection. Some sessions are aimed at engineers, while others are of greater interest to fabricators. However, attendees are welcome to attend any session.
This year’s keynote speaker is Neil Pasricha, author of The Book of Awesome, a #1 international bestseller. His lecture, “1000 Awesome Things,” will touch upon his project of posting one awesome thing every weekday for 1,000 consecutive weekdays—and he’ll teach you how to bring awesome principles to life in your organization. The T.R. Higgins Award Lecture, “Statics, Strength, Ductility, and the Uniform Force Method,” will be presented by Larry Muir of the Steel Connection, LLC.
The Steel Conference also incorporates the Structural Stability Research Council’s Annual Stability Conference, the Technology in Steel Construction Conference (TSCC) and the World Steel Bridge Symposium.
AISC members can register for just $300 ($450 for non-members) during the week of November 18. But be sure to register early; the rate increases $10 every week until the conference opens, when the price becomes $480.
This single registration fee gains you entry to all technical sessions, the exhibition hall, the keynote address and the T.R. Higgins Award Lecture. It also includes admission to all Structural Stability Research Council, Technology in Steel Construction Conference and World Steel Bridge Symposium sessions. The main conference offers up to 18.5 PDHs; attendees of short courses can earn an additional 4 PDHs, for a total of 22.5 PDHs.
Visit www.aisc.org/nascc to register and view the advance program.
Watch highlights from the opening day of last year’s Steel Conference.
Steel Shots: Towering Steel
Posted by Tasha Weiss on November 18, 2013 at 11:04 AM.
CTBUH affirmed One World Trade Center’s height as 1,776 ft, which will make the steel-framed tower the tallest building in North America when completed early next year. This ends the 40-year reign of the The Willis (formerly Sears) Tower in Chicago, also steel-framed, as North America’s tallest. Click on the above recent photo of One WTC to see a diagram showing the CTBUH Height Measurement of the tower to “Architectural Top” and “Height to Tip.” Photo: John W. Cahill/CTBUH. Diagram image: CTBUH (base drawing copyright SOM)
It’s official: One World Trade Center’s height to its architectural top is 1,776 ft.
The Council on Tall Buildings and Urban Habitat (CTBUH) convened its Height Committee earlier this month in Chicago to evaluate its criteria for determining the official height of buildings, and to rule on the official height of One World Trade Center in New York.
Because One WTC is still unfinished and has not received its certificate of occupancy, it cannot yet enter CTBUH rankings as a “completed building,” but its height is no longer in dispute.
There were two central issues for discussion in the ratification of this building’s height against CTBUH criteria.
- The nature of the mast structure on top of the tower.
- The datum line (bottom point) from which the height to architectural top was determined.
This determination was made through examination of design and construction drawings and continued through dialogue among the Height Committee’s 25 members. The committee received a 15-minute presentation by the One WTC owner/design team, including the project’s chief architect, David Childs of Skidmore, Owings & Merrill LLC (SOM) and Ken Lewis, project director at SOM.
“We were very satisfied with the detailed information presented by the team, in particular, that which affirmed that the structure on top of the building is meant as a permanent architectural feature, not a piece of functional-technical equipment,” said Timothy Johnson, chairman of CTBUH and design partner at NBBJ.
“The design of One World Trade Center, as explained to us, reinforces its role as a symbol of resurgence on this important site,” said CTBUH executive director Antony Wood. “In particular, the spire which holds the beacon light, shining out at the symbolic height of 1,776 ft, is especially poignant – echoing the similarly symbolic beacon atop the Statue of Liberty across the water.”
The Council measures the height of buildings in three categories: Height to Architectural Top, Highest Occupied Floor, and Height to Tip.
Due to design changes that resulted in the removal of the architectural cladding around the mast at the top of the structure, it became unclear whether the structure (made up of 18 barrel-shaped sections of steel) was in fact a “spire” – a vertical element that completes the architectural expression of the building and is intended as permanent, or whether it was an antenna – a piece of functional-technical equipment that was subject to change.
The spire-antenna distinction makes a difference in the measurement of “height to architectural top,” which includes spires but does not include antennae, signage, flag poles or other functional-technical equipment. Determining the topmost structure to be “functional-technical” potentially could have significantly impacted One WTC’s ranking against other buildings, as the next obvious point to take a measurement of “architectural top” would have been the building’s roof slab, at 1,334 ft, 8 in. – 441 ft, 4 in. lower than claimed.
The diagram at left, courtesy of CTBUH, shows where One WTC will rank among the tallest buildings in the world when it is completed next year (click on the image to enlarge).
Approximately 45,000 tons of structural steel were used in the One WTC tower in all. Once open and occupied, it will surpass The Willis (formerly Sears) Tower in Chicago as the tallest building in North America and will likely be the third tallest-building in the world.
The Willis Tower used about 76,000 tons of structural steel in its construction. Thanks to advancements in the domestic steelmaking process and an increase in the strength of structural steel, if it were built today versus 1973, the steel package would be much more efficient. It could be done with approximately 16,000 fewer tons of steel, 876,000 fewer labor hours, a 58% lower carbon footprint and 74% less embodied energy.
You can read the full CTBUH announcement and watch news coverage of the Chicago and New York City press conferences on the CTBUH website.
AISC Releases New Guide for Stability Design
Posted by Tasha Weiss on November 15, 2013 at 10:27 AM.
Design professionals now have a valuable new resource on practical applications for stability design in AISC Steel Design Guide No. 28, Stability Design of Steel Buildings, authored by Lawrence Griffis, P.E., senior principal and president of the Structures Division at Walter P Moore, and Donald White, professor at the Georgia Institute of Technology School of Civil and Environmental Engineering. This latest addition to the AISC Design Guide series provides innovative methods for stability design, including the introduction of the direct analysis method, aligned with the design provisions in the 2005 AISC Specification for Structural Steel Buildings.
“There’s been a great need for this Design Guide,” said AISC Specification Committee Chair Shankar Nair, Ph.D., S.E., principal and senior vice president at Teng & Associates, Inc., Chicago. “The introduction of the direct analysis method of design for stability in the 2005 AISC Specification was a big step forward, on the way toward greater transparency in the rules governing the design of steel structures. But many practicing engineers found the change confusing. Larry Griffis and Don White participated in the development of the new method and are ideally placed to explain it, along with all other aspects of design for stability.”
With the 2005 AISC Specification, the state-of-the-art in structural steel design was advanced to include three methods for stability design: the direct analysis method, the effective length method and the first-order analysis method. The primary purpose of this Design Guide is to discuss the application of each of the three methods and introduce the direct analysis method to practicing engineers.
This Design Guide illustrates the application of the overall stability design requirements of the AISC Specification using representative examples taken from routine design office practice. Emphasis is placed on practical applications as opposed to theoretical derivations.
Design Guide No. 28 is available as a free PDF download to AISC members and at a price of $60 for non-members by visiting www.aisc.org/dg. The printed copy is also available for purchase at this link or by calling 800.644.2400 (product code: AISC 828-13); the cost for the printed copy is $40 for members and $80 for non-members.
Steel Sessions at 2014 Structures Congress
Posted by Tasha Weiss on November 14, 2013 at 10:31 AM.
Registration is now open for the 2014 ASCE/SEI Structures Congress, which will be held in Boston, April 3-5, at the Sheraton Boston Hotel and Hynes Convention Center.
The technical program features more than 120 technical sessions, including a track of steel-related topics:
- Steel Connection Innovations features recent research and studies on various connection topics, such as partially restrained bolted beam-to-column connections, gusset plate stability and prediction of fracture of welded moment connections under cyclic loading.
- Composite Construction focuses on new analysis and design procedures for steel-concrete composite shear walls and composite frame systems.
AISC is a Gold sponsor of the Congress.
To register for the Congress or view a Preliminary Program, visit http://content.asce.org/conferences/stru
AISC Elects Three New Board Members
Posted by Tasha Weiss on November 13, 2013 at 1:01 PM.
AISC elected three new members to its Board of Directors at its recent Annual Meeting of the Members of the Institute in Cape Elizabeth, Maine.
Stan Baucum, director of structural products at Gerdau Long Steel North America in Midlothian, Texas; Dan Kadrmas, president of TrueNorth Steel in West Fargo, N.D.; and John O’Quinn, executive vice president of Hirschfeld Industries’ Bridge Division in Greensboro, N.C., will immediately begin serving on the AISC Board, assisting with the organization’s planning and leadership in the steel construction industry.
“I am pleased to welcome Stan, Dan and John to the AISC Board,” commented AISC Chair Jeffrey Dave of Dave Steel Company, Inc., Asheville, N.C. “This is a very experienced group, and their knowledge of our industry and experience with the activities of AISC will allow each of them to have an immediate positive impact on the Board. I thank them for their commitment of both time and resources while further serving our industry.”
Baucum has nearly 30 years of experience in the steel and construction industry. His employment history with long steel production has included positions in quality control, sales and sales management, as well as serving as a director of engineered products. He also worked within the construction industry at one of the country’s largest general contracting firms. Previously, he served as a board member for the North American Steel Sheet Piling Association (NASSPA), participated in the European Committee for Iron and Steel Standardization in Brussels for the Structural Steels - Sheet Piling (ECISS/TC 10SC 4 Standardization) and has served on the MSCI Plates and Shapes Council since 2008.
Kadrmas has served as president of TrueNorth Steel since 2005 and has also been the president of FTC Transport, Minnkota Windows and Rommesmo Companies. Previously, he served as chief financial officer for six years for these companies. He has also served as president of Cornerstone Holding Company since 2009 and as a board member since 2006. He recently completed his two-year term as president of the Central Fabricators Association, and before that he served for two years as vice president. Prior to joining the steel construction industry, Kadrmas worked for 10 years as an audit partner for Eide Bailly LLP.
O’Quinn has 33 years of experience in the structural steel fabrication industry. As executive vice president of Hirschfeld Industries’ Bridge Division, he’s responsible for all management aspects of four steel fabrication plants in the eastern U.S. as well as two in San Angelo, Texas, and oversees a total of 650 employees. Previously, he served for four years as senior vice president of sales and operations for the company’s East Coast Bridge Division. He joined the company in 2006 as its vice president of sales. He has also served for the past three years on the Executive Council of the National Steel Bridge Alliance, AISC’s bridge division.
Baucum, Kadrmas and O’Quinn join 23 AISC Board members who contribute a significant amount of time and service to the success of AISC and the structural steel industry. View a list of all of the AISC Officers and Board of Directors.
Call for Entries: 2014 IDEAS2 Awards
Posted by Tasha Weiss on November 12, 2013 at 10:26 AM.
Entries are being accepted through December 2 for AISC’s 2014 IDEAS2 Awards. The annual awards program, which has existed for more than seven decades, recognizes outstanding achievements in engineering and architecture on steel-framed building projects around the country.
The awards recognize all members of the project’s team involved with the structural framing system. The winners will be announced at the 2014 NASCC: The Steel Conference in Toronto, which will be held March 26-28. In addition, awards are presented by AISC to the submitting firms and their fellow project team members at the individual project sites during the year, and all winning projects will be featured in the May issue of MSC.
Architectural and engineering firms, general contractors, fabricators and owners are encouraged to enter innovative building projects that use wide-flange or hollow structural steel sections for a significant portion of the framing system. Pedestrian bridges entered in the competition must be an intrinsic part of a building, not stand-alone structures. Any member of the project team may submit a project for consideration, and joint submittals from project teams are encouraged.
To be eligible, projects must be located within the U.S. and completed between January 1, 2011, and December 31, 2013. If any member of the project team is an AISC member, there is no entry fee. (The entry fee is $150 for non-members.)
For more information about the competition and to submit a project entry, go to www.aisc.org/ideas2.
You can view this year’s IDEAS2 award winners in the May 2013 issue of MSC, available online at www.modernsteel.com/backissues.
Steel Shots: WTC Oculus Takes Shape
Posted by Tasha Weiss on November 8, 2013 at 5:37 PM.
Big steel is rising for the “Oculus” at the World Trade Center Transportation Hub, as shown in the above photo taken last week by AISC’s Mid-Atlantic Regional Engineer, Jacinda Collins. The structure, which frames the Transportation Hub’s main concourse, features a curved, wing-like appearance and uses more than 11,000 tons of structural steel to create its distinctive shape. Click on the photo to view a rendering of the project, courtesy of the Port Authority of New York and New Jersey.
The World Trade Center Transportation Hub, when completed in 2015, will serve more than 200,000 daily commuters and millions of annual visitors from around the world.
The Hub’s “winged” gateway, also known as the “Oculus,” was designed by internationally acclaimed architect Santiago Calatrava. Its street-level entrance features a curved rib roof and soaring arches, leading commuters to the Hub’s underground PATH rail system, 11 New York City Subway lines, 225,000 sq. ft of retail and restaurant space, four office towers at the WTC site, the World Financial Center and the Winter Garden – all of which comprises one of the most extensive underground pedestrian connections in New York City.
For additional information on the WTC Transportation Hub’s construction progress, visit www.panynj.gov/wtcprogress/transportatio
Symposium Marks 20th Anniversary of Northridge Earthquake
Posted by Tasha Weiss on November 7, 2013 at 5:12 PM.
The Northridge 20 Earthquake Symposium will take place in Los Angeles on January 16-17, 2014.
Organized by FEMA, the symposium commemorates the 20th anniversary of the magnitude 6.7 earthquake in Northridge, Calif., on January 17, 1994 that resulted in 57 deaths, thousands injured and over $20 billion in direct damage. The earthquake spurred important changes to the current practice of earthquake engineering and risk mitigation worldwide. These changes included modifications to building codes for vulnerable steel structures and multi-unit wood buildings, reexamination of near-field and basin effects for seismic sources and radical modifications to the risk assessment and insurance sectors. AISC is a sponsor of the event and has organized a track of steel sessions, scheduled for January 17.
Northridge 20 will open with a multidisciplinary plenary session, “Northridge Earthquake: Impacts, Outcomes, and Next Steps,” and continue with concurrent technical and educational sessions on a wide variety of related topics. Attendees will have the opportunity to discuss the impacts of the earthquake, highlight accomplishments of the past two decades and identify necessary steps forward to make our communities more resilient to future earthquakes.
More information, including registration details, speakers list, agenda and participating organizations, are available on the event website at www.northridge20.org.