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Building SuperstructuresBuilding Superstructures
ConstructionConstruction
Mr. O’RourkeMr. O’Rourke
3 Kinds of Superstructures:3 Kinds of Superstructures:
MassMass
Bearing WallBearing Wall
FramedFramed
Mass StructuresMass Structures
Nearly/totally solidNearly/totally solid
Little or no space insideLittle or no space inside
Use large amounts of materialUse large amounts of material
Mass Structures (cont’d)Mass Structures (cont’d)
Most materials are in natural stateMost materials are in natural state Soil, rock, reinforced concrete, asphalt pavingSoil, rock, reinforced concrete, asphalt paving
Materials are mixedMaterials are mixed
Keeps costs lowKeeps costs low
Bearing WallsBearing Walls
Have usable space, thick wallsHave usable space, thick walls
Made of brick, Made of brick,
block, or rockblock, or rock
Not as good for Not as good for
buildings with +1 story buildings with +1 story
Bearing Walls (cont’d)Bearing Walls (cont’d)
Concrete Block walls- Industrial and Concrete Block walls- Industrial and commercial commercial
Tilt-up Bearing walls- Tilt-up Bearing walls-
Reinforced concreteReinforced concrete
Frame StructuresFrame Structures
Made from wood, reinforced concreteMade from wood, reinforced concrete
or steelor steel Have a skeleton usually enclosedHave a skeleton usually enclosed Frames are made of beams, rods, poles and Frames are made of beams, rods, poles and
boardsboards
Frame Structures (cont’d)Frame Structures (cont’d) Provide more Provide more
space insidespace inside
Use less materialsUse less materials
Easy to insulateEasy to insulate
1-4 story buildings 1-4 story buildings use wood->use wood->concrete->concrete->steelsteel