Chapter 3

Pataasin ang iyong marka sa homework at exams ngayon gamit ang Quizwiz!

The number of mild (minor to very minor) earthquakes occurring on the earth are nearly

1 or 2 per year.

In a building whose structural system consists of columns, beams, and floor and roof slabs, the columns are spaced at 40 ft on center in one direction and 25ft on center in the other direction. 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.

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

250 ft².

The design wind speed for a location is the peak

3-s gust speed.

A reinforced concrete beam measures 12 in. x 24 in. in cross section. if the density of reinforced concrete is 150 lb/ft^3, the weight of beam is

300 lb/ft.

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

40 psf.

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

50 psf.

For most of the united states the basic wind speed is

90 mph.

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

Everything else being the same, a building constructed of heavyweight materials is subjected to a greater earthquake load than 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 united states that is relatively more earthquake prone

Western United States.

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 loads.

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

exposure B, C, and D.

According to the geologists, the earths surface is composed of several segments that are called

geological segments.

The two main categories under which all building loads may be classified

gravity loads and lateral loads.

The design snow load on a roof is a function of

ground snow load of the location, roof slope, wind exposure classification of site.

On a windward wall, the wind pressure

increases 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.

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 a location has a probability of

once in 50 years.

In which of the following roofs will you consider the effect of rain load?

roof with a parapet.

Highest wind speeds are usually obtained in

tornadoes.


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