At a recent meeting, the Concrete Reinforcing Steel Institute (CRSI) Board of Directors urged all CRSI producer members to revert to an inch-pound bar marking system for all sizes and grades of deformed reinforcing steel products. CRSI members produce more than 90% of domestic reinforcing steel.
The intention of this resolution is for all new rollings of reinforcing steel products to be marked with inch-pound bar markings no later than January 1st, 2014. Providing a 25-month phase in period should permit producer members sufficient time to re-tool finish roll inventory to the inch-pound marking system as rolls need to be replaced, significantly reducing or eliminating the need to unnecessarily cut new rolls to meet the resolution.
As the ASTM specifications for reinforcing steel products permit reinforcing bars to be marked in either soft metric, or inch-pound markings, existing inventory of soft metric bars can continue to be sold alongside inch-pound marked bars during and after the January 1st, 2014, phase-in target.
The intention of this resolution is to reduce confusion and the chance of errors or delays from the construction supply chain. CRSI members are strongly encouraged to revert to the inch-pound marking system for steel reinforcing bars as soon as practical to minimize any additional confusion to the supply chain of steel reinforcing bars.
This change is the result of several actions. The Federal Highway Administration no longer mandates metrification of federally funded road and bridge construction projects and all state Departments of Transportation no longer require materials to be specified and sourced in metric sizes/quantities. Additionally, a large majority of the non-governmental construction community never adopted metric measurements in their plans and specifications. The American Concrete Institute (ACI), through their Technical Activities Committee (TAC), has strongly encouraged CRSI members to mark reinforcing bars with traditional inch-pound size designations. ACI is the standards body within the United States responsible for developing the concrete building code. The concrete building code and other ACI documents reference the inch-pound size as the primary designation.
“It made logical sense for the industry to begin the process to move away from soft metric markings,” said Robert Risser, CRSI President. “None of our private or government customers are using metric plans or specifications any longer. The phase-in period will allow industry members to make the change over at minimal additional expense. CRSI is now in the process of making the appropriate changes to our manuals and literature.” BD+C
Related Stories
| Aug 11, 2010
Design firms slash IT spending in 2009
Over half of architecture, engineering, and environmental consulting firms (55%) are budgeting less for information technology in 2009 than they did in 2008, according to a new report from ZweigWhite. The 2009 Information Technology Survey reports that firms' 2009 IT budgets are a median of 3.3% of net service revenue, down from 3.6% in 2008. Firms planning to decrease spending are expected to do so by a median of 20%.
| Aug 11, 2010
A glimmer of hope amid grim news as construction employment falls in most states, metro areas
The construction employment picture brightened slightly with 18 states adding construction jobs from April to May according to a new analysis of data released today by the Bureau of Labor Statistics (BLS). However, construction employment overall continued to decline, noted Ken Simonson, the chief economist for the Associated General Contractors of America.
| Aug 11, 2010
Thom Mayne unveils 'floating cube' design for the Perot Museum of Nature and Science in Dallas
Calling it a “living educational tool featuring architecture inspired by nature and science,” Pritzker Prize Laureate Thom Mayne and leaders from the Museum of Nature & Science unveiled the schematic designs and building model for the Perot Museum of Nature & Science at Victory Park. Groundbreaking on the approximately $185 million project will be held later this fall, and the Museum is expected to open by early 2013.
| Aug 11, 2010
SOM's William F. Baker awarded Fritz Leonhardt Prize for achievement in structural engineering
In recognition of his engineering accomplishments, which include many of the tallest skyscrapers of our time, William F. Baker received the coveted Fritz Leonhardt Prize in Stuttgart, Germany. He is the first American to receive the prize.
| Aug 11, 2010
American Concrete Institute forms technical committee on BIM for concrete structures
The American Concrete Institute (ACI) announces the formation of a new technical committee on Building Information Modeling (BIM) of Concrete Structures.
| Aug 11, 2010
10 tips for mitigating influenza in buildings
Adopting simple, common-sense measures and proper maintenance protocols can help mitigate the spread of influenza in buildings. In addition, there are system upgrades that can be performed to further mitigate risks. Trane Commercial Systems offers 10 tips to consider during the cold and flu season.
| Aug 11, 2010
Reed Construction Data files corporate espionage lawsuit against McGraw-Hill Construction Dodge
Reed Construction Data (RCD), a leading construction information provider and a wholly-owned subsidiary of Reed Elsevier (NYSE:RUK, NYSE:ENL), today filed suit in federal court against McGraw-Hill Construction Dodge, a unit of The McGraw-Hill Companies, Inc. (NYSE:MHP). The suit charges that Dodge has unlawfully accessed confidential and trade secret information from RCD since 2002 by using a series of fake companies to pose as RCD customers.
| Aug 11, 2010
Jacobs, HOK top BD+C's ranking of the 75 largest state/local government design firms
A ranking of the Top 75 State/Local Government Design Firms based on Building Design+Construction's 2009 Giants 300 survey. For more Giants 300 rankings, visit http://www.BDCnetwork.com/Giants
| Aug 11, 2010
Brad Pitt’s foundation unveils 14 duplex designs for New Orleans’ Lower 9th Ward
Gehry Partners, William McDonough + Partners, and BNIM are among 14 architecture firms commissioned by Brad Pitt's Make It Right foundation to develop duplex housing concepts specifically for rebuilding the Lower 9th Ward in New Orleans. All 14 concepts were released yesterday.
| Aug 11, 2010
NAVFAC releases guidelines for sustainable reconstruction of Navy facilities
The guidelines provide specific guidance for installation commanders, assessment teams, estimators, programmers and building designers for identifying the sustainable opportunities, synergies, strategies, features and benefits for improving installations following a disaster instead of simply repairing or replacing them as they were prior to the disaster.
