Innovative Structural Steel Systems Brochure - 8

Columns

ASTM A1085 Material

A new material specification for hollow structural sections (HSS) was published
in the U.S. in 2013. The AISC Specification 360-16 now includes the specification, as well. This material provides enhanced performance and reliability for
seismic and dynamic controlled structures. The AISC Committee on Specifications allows designers to take advantage of the full nominal wall thickness when
designing with A1085-which ultimately provides more economic designs.
Highlights of the new specification include:
* Uniform minimum yield stress of 50 ksi for all shapes
* Maximum yield stress of 70 ksi for all shapes-the first material specification in Europe or North American to provide this
* Standard Charpy notch toughness (CVN) values provided for all material,
with an option for project specific CVN if desired
* Tighter wall thickness tolerances and the addition of an overall mass
tolerance allow designers to use full nominal wall thicknesses and section
properties in design
This material will be treated as a complementary specification to ASTM A500.
Check with domestic fabricators/producers for availability.
www.aisc.org/A1085

In 2012, Atlas Tube, a division of Zekelman Industries, partnered with Nippon
and Sumikin Metal Products Co., Ltd. (NSMP), and Mitsui Co., Ltd., to supply
"jumbo" hollow structural sections (HSS) to the North American market. Typical sizes available are 10 in. to 16 in. for 0.750-in. walls and 18 in. to 22 in. for
wall thicknesses of 0.375 in. to 0.875 in. Rectangular sections are also available.
Atlas Tube continues to see an increase in demand for these products. Recently, jumbo HSS have been used in column applications in a large distribution
center, a new headquarters for a Fortune 100 company, various stadiums and
sports arenas and a large industrial project. Because of its high load carrying
capability, jumbo HSS are selected as a more efficient alternative to open sections and built-up, welded box sections. The jumbo HSS are provided via Atlas'
Chicago facility, and Atlas has also partnered with the following service centers,
who will carry inventory of the shapes:
* Tubular Steel, St. Louis
* Totten Tubes, Los Angeles
www.atlastube.com/jumbo-hss

Structural Steel Core Column
Outer Steel Shell
4K psi Concrete
Insulating Material

BLACK ROCK
FIREPROOF COLUMN
Black Rock Fireproof Column manufactures durable, aesthetically designed
prefabricated fireproof columns. Black Rock Fireproof Columns are UL and
AISC certified and offer several types of cost savings to building owners. Black
Rock's round, square, and rectangular shapes (along with customized shapes
and sizes) are designed for exposed exterior and interior load bearing columns.
They are utilized in hospitals, schools, dormitories, cafeterias, shopping centers, and countless other structures.
www.blackrockfireproof.com
AISC Innovative Structural Steel Systems

http://www.atlastube.com/jumbo-hss http://www.blackrockfireproof.com http://www.aisc.org/A1085

Innovative Structural Steel Systems Brochure

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