Aisc composite design modern steel construction

David Samuelson

delivery, and the cost and installation of the

studs. With an increase in the live load to 100
stud sizes available, selecting the lowest com-

their design or how to use them. psf (typical for corridors and other gathering so optimize the shear-stud size selection for the

A composite joist provides a shear-stud places), costs rise to about $1.20 per sq. ft. typical composite joist.

Composite joists offer a number of potential length. Inc. in Cedarburg, WI. Now the main concerns

advantages, depending on the project: Composite joists also coordinate well with for contractors center on product design and

I Simplified erection, faster con-
mechanical lines under the

joists.

sidering thickness and width of

the composite-joist top-chord

of the Kohl’s stores were one-
In the past eight years,

Engineering has the joist open webs. required shear studs can vary.

I Floor-to-floor height can be ballpark figure based on Vulcraft’s

reduced by not having to run catalog.” Vulcraft will determine

I Large column-free areas give tenants max- the parking garage. Composite joists spanning Composite joists also provide a simpler and

imum flexibility on floor layouts. Composite 48.5’ supported the upper 16 steel-framed more economical connection to a masonry

ments. lent coordination among the various building and some contractors were initially unfamiliar

The most important advantages are speed disciplines, cut anticipated cost by $2.4 million with composite joists. “We’ll send Vulcraft’s cat-

Denver. “It’s a lighter section, and that becomes specified (22” deep, 54’ long) support 1,270 lb

increasingly significant over the longer spans. per linear foot and are approximately 31% David Samuelson is a structural research

joist sizes and loadings for a given project. AISC's TC5–Composite Design.