Industry News




 

01/19/2007

The Scoop on Structural Steel

Need-to-know information on structural steel helps debunk industry myths

 

What’s New in Seismic Design

Steel has long been the gold standard for seismic design. The Washington, D.C.-based Federal Emergency Management Agency’s $12 million investment in the SAC Steel Project yielded an array of high-performance steel moment frame solutions. The American Institute of Steel Construction has incorporated this work into the 2005 Seismic Provisions and 2005 Prequalified Moment Connections Standard. In addition, the Seismic Provisions included two new solutions for designers in high-seismic areas:

1. Steel Plate Shear Walls. A superior solution for shear wall systems, this steel design offers substantial advantages in terms of cost, performance, and ease of design.

2. Buckling Restrained Braced Frames. While braces are usually stronger in tension and weaker in compression, this economical new system is much more robust and designed to eliminate buckling in compression.

For more information, visit (www.aisc.org).

A little more than half of all buildings built in the United States last year utilized a structural-steel frame. But, despite an almost 2:1 advantage over the next most-common framing material, building owners still have a lot of questions.

1. Is the price of steel skyrocketing?
No. Fortunately, the major price increases are now behind us, though minor fluctuations up and down are expected to continue. However, severe price inflation during the past 3 years affected almost every major building material - from concrete to plywood to gypsum products. Additionally, remember that you’re not buying steel beams; rather, you’re buying steel fabricated and erected. Typically, the raw material is only about one-third or less of the total steel package. As a result, the price of steel to a building developer still climbed substantially in the past 3 years - by a more reasonable 13 to 15 percent rather than the 40 percent widely reported.

2. Is there a steel shortage?
No. While inflationary prices are often the result of supply issues, this was not the case with structural steel. Instead, the run-up in prices was primarily the result of higher raw material costs plus rapidly climbing energy charges. While lead times from mills for wide-flange shapes are around 12 to 14 weeks (and, for structural tube [HSS], about 4 to 6 weeks), steel warehouses (also known as steel service centers) around the country have nearly 1 million tons of structural steel in stock and can deliver most sizes within days of receiving an order. Today, nearly 70 percent of the steel used in building projects is purchased from these warehouses. The exception is typically the “mega-project,” but these large-scale projects are always years in the planning.

3. Is steel a “green” material?
Yes. By weight, steel is the most recycled material in the world. In fact, if you purchase a wide-flange beam or column in the United States today, you’re getting a product produced from about 95-percent scrap material. In addition, because of the high value of steel scrap, old steel almost never ends up in a landfill; instead, it’s recycled into new steel products. If you’re considering LEED certification, a steel-framed building almost always receives a credit for recycled content. With most fabricators located within 500 miles of a jobsite, steel-framed buildings are typically eligible to receive an additional LEED credit.

4. Is steel a blast-resistant material?
Yes. Since 9/11, owners have been increasingly concerned about building safety. While a properly designed building using either steel or concrete is safe, structural steel’s inherent ductility and strength make it the preferred blast-resistant structural material. In fact, a recent full-scale test modeled the response of a steel column to the same blast that caused the collapse of the Murrah Building in Oklahoma City. It demonstrated that a comparable steel column subjected to the blast would not fail and would retain enough structural integrity to support the building after the blast. Steel’s phenomenal ductility makes it inherently blast resistant; it’s also the strongest building material.

Scott Melnick is vice president of communications at the American Institute of Steel Construction Inc. (www.aisc.org), Chicago.

 


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Visit our website today to learn about the design flexibility of a Morton building and the endless possibilities of partnering with our designBUILD team.


Wood construction is both cost and energy efficient. Check out Morton Buildings and our designBUILD team online today to discover all the benefits of post-frame construction.


When choosing a metal-clad building for your next construction project, consider Morton Buildings, Inc., and their designBUILD team, we’ll make your dream a reality.

We Can Help You Reduce Energy by 30%

Our mission is to help our customers manage their buildings' energy costs, improve reliability, and enhance performance while having a positive impact on the environment.
CLICK HERE to find out how.

 

Add highly responsive multi-zone comfort to any building project, in any climate. Our CITY MULTI H2i R2- and Y-Series VRF systems give you flexibility to fit the needs of any building. Enjoy 100% heating capacity at 0°F outdoor ambient, and 85% heating capacity at -13°F outdoor ambient.  For more information, log on to www.mitsubishipro.com


Tennant Company is a recognized leader in designing, manufacturing and marketing solutions that help create a cleaner, safer, healthier world. With thousands of satisfied customers already using award winning ec-H2O technology, why not see what you're missing? Test ec-H2O on your soils in your facility. Get a free demo.


Tennant Company is a recognized leader in designing, manufacturing and marketing solutions that help create a cleaner, safer, healthier world. With thousands of satisfied customers already using award winning ec-H2O technology, why not see what you're missing? Test ec-H2O on your soils in your facility. Get a free demo.

 

Replace core drilling with Connectrac In-Carpet and On-Floor Wireways, the proven connectivity solution in open interior spaces of all kinds. These elegant low-profile wireways are great for AV / telecom connectivity wherever it’s needed.

 


 
10/21/2014

U.S. photovoltaic costs continue to decline.

10/20/2014

The EPA looks to help improve energy and air quality during educational facility renovations. 

10/17/2014

Agency says current regulations "don't protect worker health".

10/16/2014

Scientists have developed LED bulbs free of rare earth metals.

10/15/2014

Survey shows a decrease in employees coming to work sick.

10/14/2014

New efficiency ratings available for apartment units

10/10/2014

New code to increase commercial building efficiency.

10/09/2014

Take charge of your electricity bill with these quick tips.

10/08/2014

Illumination improvements take the top award for physics

10/07/2014

Study shows equipment improvements could boost efficiency. 

10/06/2014

New device integrates batteries into solar cell design.

10/03/2014

The switch to green products comes to healthcare facilities.

10/01/2014

Photovoltaic installations serve nearly 2.7 million students

09/30/2014

Incidence of fires and property loss down from 2012

09/29/2014

Academic achievement tied to responsible reporting habits

09/26/2014

Survey shows people more careful, less satisfied in public washrooms.

09/25/2014

A new study shows that switching natural gas for coal will not significantly reduce the amount of CO2 emissions being produced. 

09/24/2014

A new study shows the carbon emission reduction policies individual states have adopted are yielding results.

09/23/2014

A recent survey of industry professionals indicates that investment in energy efficiency projects will increase over the next year.

09/22/2014

Fort Carson in Colorado is well on its way to reaching the goal of net-zero energy by 2020. 

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