PA Flashcards
What is the formula for slope percentage
(Rise / run) x 100
Slope for sewers
1/4” = 1’-0” (2% for 2” pipe)
or
1/8” = 1’-0” (1% for 3-6” pipe)
Slope for site drainage
5% adjacent to buildings
2% for impervious surfaces
1.5%-10% for grass
Slope for parking surfaces
2-3%
Slope for ADA ramp
1:12 (8.33%)
Slope for IBC ramps
1:12 for egress ramps
1:8 for non-egress ramps
Define flood plain
Area at risk for accumulation of water
Define water table
level at which the soil is fully saturated
Define impervious surface
Does not allow the passing of water
Define wetlands
Area with fluctuating water levels / marshes, native plants, wildlife, etc
Define greywater
Domestic wastewater (does not contain solids or waste)
i.e. kitchen wash water, laundry water, etc
Define runoff
streams formed from irrigation or precipitation
What is dry floodproofing?
Protecting a building from the exterior by making it watertight
What is wet floodproofing
modifying the interior of a building to allow water in and minimize the impact is has on the building
What is the percent chance that a 100 year flood will occur each year
1%
What is Base Flood Elevation
the height to which water water can be expected to rise in base flood. Used for insurance premiums and building construction requirements
What is USCS and what do they do
Unified Soil Classification System - describes the size and composition of soils
What are the 5 major classifications of soil
gravel
sands
silt / clays (LL<50%)
silt / clays (LL>50%)
organic soils
What kinds of soils can never support a foundation
silt/clays
organic soils
What are the two general types of foundation forms
spread and pile
What is angle of repose
max angle or slope of a material before collapse
What is liquefaction
When a soil behaves like a liquid - very bad for foundations
What is a kip
equal to 1000lbs
What are typical dimensions of loading areas
10-12’ wide
40’ long
14’ height clearance
60’ turning radius
ASHRAE
American Society of Heating, Refrigeration and Air-Conditioning Engineers
IES
Illuminating Engineering Society
GA
Gypsum Association
ACI
American Concrete Institute
AISI
American Iron and Steel Institute
AISC
American Institute of Steel Construction
AITC
American Institute of Timber Construction
What are the three tests most commonly used to rate the fire-resistance of construction assemblies
ASTM E119
NFPA 252
NFPA 257
ASTM E119
Standard Test Methods for Fire Tests of Building Construction and Materials
NFPA 252
Standard Methods of Fire Tests of Door Assemblies
NFPA 257
Standard on Fire Test for Window and Glass Block Assemblies
What does zoning primarily regulate
-what a parcel of land may be used for
-how much of the land can be covered with buildings
-how large the structures may be
-how far the buildings must be set back from the property lines
-how much loading and parking must be provided
Best building orientation in Northern Hemisphere
5-25 degrees east of south
Parts of the “cool region”
Canada
Northern US
Mountainous regions of Colorado & Wyoming
Parts of “temperate” region
Mid-US
+ Some NE & NW US areas
Parts of “hot-humid” region
SE United States
Parts of “hot-arid” region
Southern CA to parts of southern TX
Building strategies for cold climates
minimize exposed surfaces to reduce heat loss
passive solar heating is not appropriate
Compact forms
Large SOUTH facing windows
interior materials that have high thermal mass
Dark exterior colors
Building strategies for temperate climates
oriented to maximize southern exposure
long building running in the east-west direction - facing slightly to the east
cooling effects of wind in summer - block wind in winter
medium colors for building exterior
Building strategies for hot-humid climates
Maximize natural ventilation with narrow floor plans that have cross ventilation
provide shade for all openings
use light colors for building exterior
Building strategies for hot-arid climates
shading from direct sunlight
when available, pools provide cooling through evaporation
compact forms
minimize openings
provide shade for openings
use light colors for building exterior
Passive solar cooling
utilizes shading, natural ventilation, radiative cooling, evaporative cooling, and ground coupling
Radiative cooling
uses thermal mass to store heat during the day and releases at night
ground coupling
uses the stable coolness of the earth to cool a building
Parallels and Meridian grid makes squares how large and called what
Checks that are 24 sq mi each
Each check (24 sq mi) is further divided into what
16 townships, 6 sq mi each
townships running east and west are referred to as a ___
township
townships that run north and south are referred to as a ___
range
What is another term for acre
hectares
What is the area of one acre
43,560 sq ft
What is the max slope for a road
10%
What is the max slope for a landscaped area
50%
Space requirements for non-assignable areas:
MECHANICAL ROOMS
5-9% gross building area