cnst 251 ch 3

in a building whose structural system consists of columns, beams, and a floor and roof slabs, the columns are spaced at 40 ft on center in one direction and 25 feet on center in the other directions. what is the tributary area for an interior column.

1,000 ft2

the total approximate dead load of a floor in a typical wood frame residential building is

10 psf

for most of teh us, the design win speed for an average risk building is

115 mph

in a building whose structural system consists of columns, beams, and a floor and roof slabs, the columns are spaced at 40 ft on center in one direction and 25 feet on center in the other directions. what is the tributary area for a corner column.

250 ft2

the design wind speed for a location is teh peak

3-s gust speed

a reinforced concrete beam measures 12x24 in in cross section. if teh density of reinforced concrete is 150 lb/ft3, the weight of the beam is

300 lb/ft (know the unit)

the floor live load in a residential occupancy is generally assumed to be

40psf

the total approximate gravity load on a floor in a typical wood frame residential building is

50 psf

the design snow load on a roof is a function of

all of the above (ground snow load, roof slope, wind exposure classification of the site)

the design wind speed is also referred to as the

basic wind speed

which of the following loads can be estimated with greatest certainty

dead load

with respect to wind pressure, a building site is classified in terms of

exposures b,c and d

an average tornado strikes a larger area on the ground than a hurricane

false

for wind blowing along one of the two major axes of a rectangular building, the leeward wall is subjected to positive (toward the wall pressure)

false

for wind blowing along one of the two major axes of a rectangular building, the side walls are subjected to positive (toward the wall pressure)

false

roof live load is a function of the building's occupancy

false

the two main categories under which all building loads may be classified are

gravity loads and lateral loads

on a leeward wall, the wind pressure

is almost constant with height above the ground

the loads on a column are generally expressed in

lb

the loads on a beam are generally expressed in

lb/ft

the loads on a floor are generally expressed in

lb/ft2

the roof live load in a building is generally

less than the floor live load

which of the following occupancies has the highest floor live load

library stack rooms

an earthquake measuring 7.0 on the richter scale is

none of the above

the design wind speed for an average-risk building at a location has a probability of occurrence of

none of the above (once in 300,100,200,50 years)

in which of the following roofs will you consider the effect of a rain load

roof with a parapet

the number of mild earthquakes occurring on the earth is almost

several thousand a year

according to the geologists, the earth's surface is composed of several segments that are called

tectonic plates

highest wind speeds are usually obtained in

tornadoes

everything else being the same, a building constructed of heavyweight materials is subjected to a greater earthquake load than a building constructed of lightweight materials

true

for wind blowing along one of the two major axes of a rectangular building, the windward wall is subjected to positive (toward the wall pressure)

true

the region of the us that is relatively more earthquake prone is the

western us