Structural System Based on Economy, Span, and/or Shape

Question 1

Long Span System

Answer 1

Noncombustible

• Steel Frame
• Steel Truss
• Open Web Joists
• Waffle Slab
• Single or Double Tea Concrete

Question 2

Minumum Floor Thickness or Minimum Total Building Height - Thinnist Floor System

Answer 2

• Prestressed concrete slabs
• Site Cast concrete 2-way flat plate
• Post-tensioned 1-way Slab

Question 3

Minimum thickness for Load Bearing Masonry Wall

Answer 3

8” (includes two wythes of bricks to be load bearing) (Black Specks Q+A

Question 4

Best structural system for 25’ Span

Answer 4

• Reinforced concrete flat plat system
• Wood I-Joist spanning a wood post and beam system
• Steel Wide Flange beams and columns with reinforced steel decking and columns

Question 5

One way Spanning System: Timber

Answer 5

Planks - 5’ to 15’ Span
Joists - 10’ to 20’ span
Laminated beams 15’ to 80’ span
Trusses 20’ to 100’+ span

Question 6

One way Spanning system: Steel

Answer 6

Decking 5’ to 15’ Span
Wide-Flange beam 15’ to 60’ span
Open web joist 20’ to 100’ span

Question 7

One way Spanning System: Reinforced concrete

Answer 7

One-way slab 5’ to 20’ span
Joist slabs 20’ to 35’ span
Precast planks 10’ to 40’ span
Precast Teas 20’ to 100’+ span

Question 8

Two Way Spanning System

Answer 8

Flat Plates 5’ to 25’ span
Two way slabs 15’ to 40’ span
Waffle slab 15’ to 60’ span