Design and Product Specification
Testing and Design of Composite Slabs
Composite slabs are a very practical and economical means of creating a floor
system and works particularly well in conjunction with composite beam
construction. The structural capacity of the slabs must be determined by test
and each manufacturer publishes load tables for their individual profiles.
CSSBI bulletins S2 Criteria for the Testing of Composite Slabs and S3 Criteria for the Design of Composite Slabs provide design and testing criteria for
Design of Steel Deck Diaphragms
Using a steel deck diaphragm can often obviate the need for separate bracing.
The CSSBI B13 Design of Steel Deck Diaphragms shows how to use the inherent
in-plane stiffness of steel deck to transfer lateral loads within a structural
system. This 3rd edition of the manual now gives design tables based on both
the Tri-Services Method and the SDI Method. Frame connection types include
arc-spot welds, screws and Hilti pins. This 3rd edition has been updated to
meet the requirements of the 2005 National Building Code of Canada and
CSA-S136-01 (with 2004 supplement)
for the Design of Cold-Formed Steel Structural Members.
Using a steel deck is generally a structural product designed to resist gravity
loads. However, from the time it was first commercially introduced, there have
been successful attempts to utilize deck to perform more than one function.
Acoustic roof deck is one example of using the decking material to perform
multiple functions with very little increased cost. The acoustic deck provides
a finished ceiling with noise reduction capabilities while still providing the
required vertical and horizontal load resistance. The noise reduction is
achieved by the perforations and the acoustical insulation or material. The
sound penetrates the deck through the perforations and is absorbed by the
The CSSBI 10M Standard for Steel Roof Deck and
the CSSBI 12M Standard for Composite Deck are intended to assist specifiers,
designers, buyers, manufacturers and erectors of steel roof and composite deck
by providing information which can be adopted by reference where desired. These
standards include recommended minimum requirements for grade of steel, base
steel design thickness, metallic coating designation, loads, resistances and
deflections, as well as design, fabrication and erection in general. Currently
the CSSBI does not have a standard for the deep composite deck products.