Archive for September 2011
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Steel Shots: A Photo Gallery of Award Winning Steel Structures
Posted by Tasha Weiss on September 16, 2011 at 9:21 AM.
The Gateway Center at Westchester Community College in Valhalla, N.Y., a National Award winner in AISC’s 2011 IDEAS2 awards program. In honor of this achievement, members of the project team will be presented with awards from AISC during a ceremony on Monday, September 19. Click on the photo to access a slideshow presentation of additional images of the project.
The prestigious AISC IDEAS2 awards program each year produces some of the most visually stunning images of recently completed steel structures, and now you can view all of the 2011 winners in a gallery of photos on the MSC web site at http://bit.ly/nMoNZC or www.modernsteel.com/photos. The gallery provides shareable links to slideshow presentations of each of the 2011 award winners, which include multiple images and descriptions of the project, as well as a list of the project team members.
Throughout the year, members of each project team are presented with awards from AISC, typically in a ceremony presentation at the project location. Next week, two of this year’s winning projects — both located in New York — will be presented with awards: The Gateway Center at Westchester Community College in Valhalla, N.Y. on Monday, September 19; and 510 Madison Avenue Tower in New York City on Wednesday, September 21.
The awards presentations will take place the week of SteelDay (September 23). On SteelDay, AISC is hosting an NYC event at McGraw-Hill headquarters in Midtown Manhattan. It includes a networking lunch followed by a panel discussion on award-winning steel-framed buildings in NYC — all recent recipients of AISC’s IDEAS2 Award. Panelists will share their views on trends and issues shaping New York’s building construction scene now and in the future. Afterward, guests will take a site tour of the nearby International Gem Tower project currently under construction. Guests may register for this event and all SteelDay events at www.steelday.org/events. Select New York in the drop-down search menu. From there, select the event “SteelDay Luncheon, Panel Presentation and Site Tour” and register.
The 2011 award winners were announced in the May issue of MSC, with project descriptions and photographs of each. To read the article click here or go to www.modernsteel.com/backissues.
2012 Mining Structures Conference Call for Papers
Posted by Tasha Weiss on September 15, 2011 at 10:02 AM.
The South African Institute of Steel Construction invites those involved with structures for mining and materials handling to share their experience and knowledge with international counterparts by submitting a paper abstract for the Structures for Mining and Related Materials Handling Conference in Vanderbijlpark, South Africa, October 15-18, 2012. Abstracts will be accepted until December 9, 2011.
For guidelines and requirements on submitting a paper abstract, visit the conference website at http://www.smmh2012.co.za/papers.htm.
The conference program includes technical sessions, workshops and exhibits and is intended for anyone involved with design, parameter setting, software supply, management, construction, operation and maintenance of structures for mining and materials handling.
You can view the full conference program at http://www.smmh2012.co.za/programme.htm.
Addendum (Sept 16) - Curious about that logo? The correlation is actually more simple and direct than it first appears. The word “steel” translated into Afrikaans is “staal,” hence the stylized type in the SAISC logo. Afrikaans is a derivative of Dutch and one of the most widely spoken of South Africa’s 11 official languages.
Seismic Provisions for Structural Steel Buildings Available for Free Downloading
Posted by Tasha Weiss on September 14, 2011 at 10:17 AM.
The 2010 AISC Seismic Provisions for Structural Steel Buildings (ANSI/AISC 341-10) is now available as a free download on AISC’s web site at www.aisc.org/2010SP. This new specification supersedes the 2005 AISC Seismic Provisions for Structural Steel Buildings and all previous versions of this specification. It has been approved by the AISC Committee on Specifications and is ANSI-accredited. The 2010 Seismic Provisions have also been adopted by reference in the 2012 International Building Code, and as a result will soon govern the seismic design of all steel buildings in the United States.
As in the past, the 2010 Seismic Provisions was written as a supplement to the current AISC Specification for Structural Steel Buildings (ANSI/AISC 360-10), providing design requirements for seismic force resisting systems. The most obvious revision to the new Seismic Provisions is the new chapter format which resembles the AISC Specification. Additionally, the incorporation of Part II, Composite Structural Steel and Reinforced Concrete Buildings, with Part I, Structural Steel Buildings, is a notable formatting change that will clarify the design of composite systems. Other revisions and updates in the 2010 Seismic Provisions include:
- Establishing a new chapter on analysis requirements that applies to all systems
- A discussion on the “Basis of Design” that explains the intended seismic response characteristics of each structural system
- Adding requirements for two cantilever column systems to be consistent with other systems in these provisions and the definitions in ASCE/SEI 7-10
- Adding analysis requirements to address the inelastic response of special concentrically braced frames
A list of additional revisions and updates can be found in the Preface of the document.
View and download the new Seismic Provisions and Commentary at www.aisc.org/2010SP.
Reminder: SteelDay Student Photo Contest
Posted by Tasha Weiss on September 13, 2011 at 9:40 AM.
Know an undergraduate or graduate college student who likes taking photos and is interested in getting involved in this year’s SteelDay? Remember to let them know about AISC’s SteelDay Student Photo Contest! Entries are due by this Saturday, September 17. They can find more information and enter for free at www.steelday.org/photocontest. (and will have a chance to win a cool digital photo frame!)
1 WTC Steel Construction Reaches 80th Floor Milestone
Posted by Tasha Weiss on September 12, 2011 at 10:16 AM.
As the nation observed the 10th anniversary of 9/11 yesterday, signs of recovery were shown in the progress of rebuilding the World Trade Center. Steel for 1 World Trade Center (formerly known as the Freedom Tower) has risen to at least the 80th floor, at 1,000 ft above street level, and is now the tallest building in Lower Manhattan. It is visible in the skyline from around New York and northern New Jersey.
Designed by architect David Childs of Skidmore, Owings and Merrill, LLP, the tower is slated to stand at 104 stories with an antenna reaching hundreds of feet higher bringing it to a symbolic height of 1,776 ft, the tallest in the country. It is scheduled to be completed in 2013.
The steel tower at 1 World Trade Center is one of four skyscrapers envisioned for the site, as well as a transportation hub, a museum, and a memorial that opened yesterday on the 10th anniversary of the 2001 attacks. The memorial is complete with reflecting pools and the victims’ names engraved in bronze parapets, set above the footprints of the fallen towers.
For more information on the project’s construction progress, including a live camera image, visit http://www.panynj.gov/wtcprogress.
Steel Shots: A SteelDay Video Preview
Posted by Tasha Weiss on September 9, 2011 at 9:15 AM.
AISC’s new video shows what you can expect to see and experience at this year’s SteelDay, such as how steel is made. Click on the photo to link to view the video.
SteelDay is only two weeks away! Have you signed up to attend a free event yet? If you’re still wondering why you should attend a SteelDay event on September 23, AISC’s new video shows what you can expect to see and experience this year. To watch the video go to www.SteelDay.org.
The video includes a peek at past SteelDay events and offers commentary from attendees at a variety of events throughout the country. Included are tours of steel facilities, educational presentations, and interactive learning events showing how the U.S. structural steel industry works together to build high-performance and sustainable projects.
SteelDay is a great opportunity to see what you can do with steel and learn directly from industry experts who are opening the doors to their facilities. For an up-to-date event roster and to find out what’s going on in your vicinity, visit www.SteelDay.org.
Find a SteelDay event near you at www.SteelDay.org.
Lincoln Electric Plugs In to 443-ft Wind Tower
Posted by Tasha Weiss on September 8, 2011 at 9:18 AM.
A major supplier to the structural steel and wind tower fabrication industries, AISC member The Lincoln Electric Company this year has stepped further into the world of renewable energy. It recently built a wind tower on the grounds of its world headquarters and manufacturing campus in Euclid, Ohio, just east of downtown Cleveland. The 2.5 megawatt turbine is expected to generate up to 10% of the energy used for Lincoln Electric’s main plant in Euclid and save the company up to $500,000 a year in energy costs.
The tower, measuring 443 ft tall from base to the tip of its blades, is nearly as tall as a 45-story building. The structure is one of the largest urban wind towers in North America and evolved out of a strategic partnership between Lincoln Electric and the Great Lakes Energy Development Task Force.
“The tower represents important cost savings, as well as our commitment to integrating renewable energy sources, among other ongoing green initiatives, into our manufacturing processes,” said George Blankenship, president, Lincoln Electric North America. “It stands as a visible symbol of Lincoln Electric’s commitment to the wind tower industry by showcasing the benefits our welding solutions offer to a prominent, fast-growing business segment.”
A portion of funding for the $5.9 million project came from a $350,000 loan from Cuyahoga County, while another $1.125 million in funds came from the American Recovery and Reinvestment Act of 2009 via a State Energy Program Grant from the Ohio Department of Development and the U.S. Department of Energy. Lincoln Electric funded the remainder of the cost. The company, however, credits the assistance of the local, state and federal governments with making this landmark project a reality.
Short Span Design Standards Session at Bridge Engineers’ Seminar
Posted by Tasha Weiss on September 7, 2011 at 9:22 AM.
The Short Span Steel Bridge Alliance is sponsoring an educational session on the development of national design standards for short span steel bridges at the 2011 Western Bridge Engineers’ Seminar, September 25-28 in Phoenix. The session will be presented by Karl E. Barth, Ph.D., the Jack H. Samples Distinguished Professor at West Virginia University and a nationally recognized expert in steel bridge analysis, design and rating. It will be held on Tuesday, September 27 from 10:30 a.m. until noon.
SSSBA’s national standards for steel bridges are expected to be published at the end of this year. (Stay tuned for a news item on modernsteel.com once they’re available) These standards will provide bridge designers and engineers with tools to develop cost-effective short span bridges.
For more information about the 2011 Western Bridge Engineers’ Seminar and to register, visit the event web page www.westernbridge.net. For more information about SSSBA go to http://shortspansteelbridges.org/.
Nuclear Specification Available for Second Public Review
Posted by Tasha Weiss on September 6, 2011 at 8:52 AM.
A draft of the 2011 ANSI/AISC 690, Specification for Safety-Related Steel Structures for Nuclear Facilities, is now available for public review on the AISC website. This is the second public review of this document; therefore, only revisions made since the first public review are open for comment. The document is written as a supplement to the 2010 AISC Specification for Structural Steel Buildings.
The document and public review form are available on the AISC website at www.aisc.org, in the News section. Please submit your comments electronically to firstname.lastname@example.org using the review comment form, or mail to Cynthia Duncan, AISC, Suite 700, 1 East Wacker Drive, Chicago, IL 60601-1802 by October 17, 2011. A hard copy is also available for a nominal fee of $15 by calling 312.670.5411 or by emailing email@example.com.
Steel Shots: Missouri Slider
Posted by Tasha Weiss on September 2, 2011 at 9:14 AM.
A bridge replacement that carries westbound I-44 over the Gasconade River was slid laterally more than 40 ft, using a hydraulic skidding system, and positioned on the reconstructed bents in less than twelve hours. The time lapse images show the preparations before the bridge move, half-way through the bridge move, and the final replacement of the bridge. Photos: MoDOT
Halfway between St. Louis and Springfield, Mo., I-44 crosses the scenic Gasconade River along the northern border of Mark Twain National Forest. Built in 1955, prior to even the earliest portions of the Interstate Highway system, the bridge carrying the westbound lanes experienced considerable deck deterioration in recent years. As a result, Missouri Department of Transportation scheduled for replacement in early 2011. The project included total replacement of the superstructure and repairs to the existing bent caps.
Completely removing and replacing the bridge required a closure of less than 20 days. Once the replacement bridge was constructed, traffic was shifted temporarily to the eastbound span, while the existing westbound bridge was demolished and repairs were performed on the existing substructure. Once the repairs were complete, the replacement bridge was slid into place in less than 12 hours.
Learn more about the project in the article, “Sliding Bridge Speeds Delivery” in the September issue of MSC, available now. (click on the digital edition to your right for the entire issue!)