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Economical Structural Steel Framing Systems for Multi-Story Residential Buildings

  • Understand the major structural issues to consider when designing for multi-story residential projects.

  • Learn the concepts and advantages of the staggered truss and Girder-Slab structural steel framing systems.

  • Understand how innovative structural steel framing systems provide economical and innovative solutions to multi-family residential building design.

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Questions 1:
 The staggered truss framing system is a competitive alternative to flat plate concrete framing for achieving:

a. Low floor-to-floor heights

b. Long-span column-free spaces

c. Versatility of floor layout

d. All of the above

Questions 2:
 Inherent efficiencies in cost and schedule are not reasons why designers and developers are looking more closely at staggered truss as an option for multifamily residential construction.

True     False

Questions 3:
 The staggered truss system was developed in the:

a. 1960s

b. 1970s

c. 1980s

d. 2003

Questions 4:
 With the staggered truss system, the trusses alternate from floor to floor so that the bottom chord of one truss:

a. aligns with the top chord of the next truss

b. aligns with the front of the building

c. aligns with the bottom chord of the next
          truss

Questions 5:
 In the staggered truss system, columns are located:

a. throughout the building

b. only along the exterior of the building

c. at typical bay spacings

Questions 6:
 The open center panel of the staggered truss is referred
to as a:

a. Vierendeel opening or panel

b. Unbraced opening

c. Box truss opening

d. None of the above

Question 7:
Girder-Slab is a patented system, available through all structural steel fabricators, that uses dissymmetric beams (D-Beams) that carry precast hollow-core slabs on their bottom flanges.

True     False

Question 8:
What minimum floor-to-floor height is easily achieved with the Girder-Slab system:

 

a. 8'8"

b. 9'3"

c. 9'-8

d. 10'-2"

Questions 9:
 With the Girder-Slab system, spandrel beams can often be removed after they are used for erection purposes. Because of this, true floor-to-ceiling windows can be achieved for multi-family residential buildings.

True     False

Questions 10:
 Innovative structural steel systems such as Girder Slab no longer make flat walls and ‘typical’ bays a standard requirement in a steel-framed building, curves and shapes are now attainable.

True     False

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Association of Licensed Architects
 PO Box 687  Barrington, IL  60011-0687
(847) 382-0630
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