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Building Assemblies 01
building assemblies: ideas, concepts, terms
22
Architecture
Undergraduate 3
09/10/2011

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Cards

Term
boring log
Definition
a section of soil cut out of a site as a sample to be analized
Term
engineered fill
Definition
used if the natural soil of a site varies too much; keeps structure from experiencing settling and/or uneven settling
Term
angle of repose
Definition
the steepest angle at which a sloping surface of a particular loose material is stable.
Term
soil classification depends on what factors?
Definition

particle size

bearing capacity

drainage ability

Term
the classifications of soil are?
Definition

gravel

sand

silt

clay

Term
frictional vs. highly cohesive soil
Definition
the more cohesive (and thus less frictional) the soil, the steeper its angle of repose
Term
batter boards
Definition

horizontal boards nailed to posts set at the corners of an excavation, used to indicate the desired level

 

 

 

 

 

 


also as a fastening for stretched strings to indicate outlines of foundation walls

Term
terra forming
Definition
Term
shallow foundation
Definition

used when the load-carrying capacity of subsoil is consistent

 

depth of foundation = "depth at risk of frost heave"

Term

deep foundation

Definition

used when the load-bearing capacity of subsoil is inconsistent or inadequate near the surface.

 

depth of foundation = depth of loadbearing stratum

Term
why and how is a slurry wall built?
Definition

used when water table is high, often to contain groundwater

 

dig into ground

fill cavity with bentonite clay

put reinforced stell cage into cavity

pour concrete in while siphoning out the clay

excavate one side of wall

anchor wall to earth

Term
base isolator
Definition

(aka seismic isolation system) - earthquake engineering

 

alternating steel and rubber plates at bottom of foundation to allow movement (especially in an earthquake)

 

Term
what building discussed addresses how a building meets the ground?
Definition
Gugalun House, Peter Zumther
Term
Diamond Ranch High School
Definition

question of architecture and the ground

"unbuildable" site due to steep slope and unstable ground

retaining wall architecture

2 big "pieces" = 2 fields and parking

"lifted ground" created with roofs

Term

concrete recipe

Definition

1 : 2 : 3

1 part Portland Cement

2 parts sand

3 parts aggregate and water*

 

* amount depends on weather, distance traveling, time, workability desired 

Term
curing
Definition

concrete does not dry, it CURES

 

concrete likes to cure at 70 degrees, but can do so in cooler temperatures.  Can't FREEZE, however.  

Term
additives
Definition

dry, powder, inorganic, large quantities

controversial use of FLY ASH

coloring agents

Term
admixtures
Definition

chemical, liquid, improve quality of concrete

super-plasticizers, air-entraining, retarders, stabilizers

Term
things to avoid when placing concrete:
Definition

adding water at site

excessive vertical drop (more than 4')

excessive horizontal dragging

Term
honey-combing
Definition

holes that occur in concrete, especially at corners.

mostly cosmetic, but sometimes becomes a structural issue

indicates problem in pouring concrete - vibrating or mixture

Term
efflourescence
Definition
white "oozing" substance that occurs on concrete
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