Chapter 19 Flashcards
The preliminary framing layout of a building is generally prepared by who?
The project architect
The preliminary framing layout of a steel frame building is generally presented in which view?
The plan view
If the floor of a steel frame building has only primary and secondary components, the secondary components consist of what?
Floor deck
If the floor of a steel frame building has primary, secondary, and tertiary components, the secondary components consist of:
a. W shape beams
b. steel joists
c. steel joist girders
d. any of the above
e. a or b
a or b. If the floor of a steel frame building has primary, secondary, and tertiary components, the secondary components consist of W shape beams and Steel joist girders
Which of the following is not an ASTM designation for steel bolts?
a. A325 bolts
b. A307 bolts
c. A490 bolts
d. A507 bolts
D. A507 bolts
A snug tight connection between framing members is obtained by what?
Bolting the members and tightening them with a spud wrench using full force.
A snug tight connection between framing members is obtained by what?
Bolting the members and tightening them with a spud wrench using full force.
Field bolting of steel members is generally preferred over field welding. True or false?
True
A shear connection between a steel beam and a steel column is also called what?
A simple connection
A shear connection between a steel beam and steel column can be made without connecting beam flanges to the column. True or false?
True
A rigid connection between a steel beam and steel column can be made without connecting beam flanges to the column. True or false?
False
In a multistory steel frame building, the columns are generally spliced after every how many floors?
Every two floors
In connecting the upper column shaft with a lower column shaft in a multistory steel frame building, we generally require what?
Two flange plates
The fabrication of structural steel components is done base on what?
Shop drawings
Details of connections between structural steel members are prepared by the:
a. architect
b. structural engineer
c. general contractor
d. none of the above
None of the above
The erection of structural steel members is generally done by the:
a. general contractor
b. structural engineer
c. AISC
d. Steel detailer
e. None of the above
None of the above
The installation of a floor or roof deck is done by the:
a. General contractor
b. erector
c. manufacturer of the deck
d. a, b , c
e. a or b
a or b . The instillation of a floor or roof deck is done by the general contractor and erector
What does Camber refer to?
Upward deflection of a beam to counter downward deflection by a dead load
In connecting a steel column to concrete foundations, anchor bolts are used. These bolts are embedded into the foundation by who?
The general contractor
A steel column may or may not need a base plate at the bottom. True or False?
False
To level a column so that it is plumb:
a. steel shims are used
b. high strength plastic shims are used
c. leveling bolts are used
d. any one of the above
D. any of the above.
A braced-frame steel structure is generally more economical than a comparable rigid frame structure. True or False
True
The difference between diagonal bracing and K- bracing between steel columns is that:
a. K-bracing provides less spatial interruption than diagonal bracing.
b. K-bracing members are heavier than diagonal bracing.
c. K-bracing members also carry some gravity loads, while diagonal framing members do not.
d. all of the above
d. all of the above
Eccentric K-bracing is generally recommended for use in which regions?
in seismic regions
The term racking refers to the effect produced on the structure mainly by what loads?
Lateral loads
A steel frame building may consist of either a rigid frame or a braced frame. A combination of the two systems (braced-and rigid-frame systems) cannot be used in the same building. True or false?
False
Which of the two - a rigid frame or a braced frame- provides greater structural stiffness, that is, greater lateral stability?
Braced Frame
In a braced-frame steel structure, the braced bays may be provided on what?
May be provided on the exterior façade, the interior of the building, or both.
A multistory steel frame structure must be provided with a central shear core. True or False?
False
The central shear core in a steel frame building:
a. should consist of reinforced concrete walls in both directions of the buildings
b. should consist of steel braced frames along both directions of the building.
c. either a or b
d. none of the above
C. Either A or B. The central shear core in a steel frame building should consist of reinforced concrete walls in both directions of the buildings or should consist of steel braced frames along both directions of the building
