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66 Cards in this Set
- Front
- Back
Structural shapes formed by |
Hot rolling |
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Standard views used to illustrate steel structures on drawings |
Plan view, elevation view, section views |
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View looking down on top of structure, multi story building require more views |
Plan view |
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Looking from one side of building. Shows vertical height dimensions |
Elevation view |
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Gives close up detail of part or section of building |
Section views |
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Used to show location of holes, clips, base plates |
Detail drawings |
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Shape for misc. |
M |
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W columns have |
Equal web and flange thicknesses |
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W beams have |
Unequal web and flange thicknesses |
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ST, WT and MT structural tees made by |
Cutting S, W or M shape beams or columns in half |
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Beam/Column designation for W12x20x2 |
W shape with nominal depth of 12 ", weight is 20 lb/ft, piece is 2 feet long |
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Bolt holes on structural members laid out on |
Gage lines |
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Gauge line is |
The distance from the line to the heel of an angle or channel or the centerline of a beam web |
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Holes are spaced in what direction |
Parallel to the length of the member |
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Hole spacing on the gage line |
Pitch |
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3 methods of showing dimensions on a print |
Standard, extension, group |
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Most difficult method of dimensions to read on print |
Group |
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Easiest dimension method to use on drawings |
Extension |
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Group dimension |
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Extension |
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Standard |
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Drawing shows dimensions from hole to hole |
Group |
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Size of heavy hex head on bolt specified to be |
Same as nut |
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Bolt type has shorter thread length to eliminate it from the shear plane |
Structural bolts |
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Snug tight condition |
When all plies of joint are in firm contact |
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Slip critical connection (friction type connection) definition |
Relies on friction between steel plies and high clamp load of structural bolt and nut to prevent movement |
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Connection requires specific torque for given bolt size |
Slip critical connections |
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2 types of bolting methods |
Slip critical and snug tight |
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4 methods of fully tensioning bolts for slip connections |
Turn the nut method, alternative bolts, head indicating washer (DTI), calibrated torque wrench |
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Least favorable of the 4 methods of tightening bolts |
Torque wrench |
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Body of bolt |
Distance from under the head to End of bolt |
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Specific load that a fastener must be tested at without any indication of deformation or failure |
Proof load |
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Larger edge distance required when |
Hole is near sheared edge |
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Steel base plates required when |
Columns bear on concrete footings |
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Sufficient number of anchor bolts to hold verticle columns in base plates |
2 |
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Thickness of base plate should be no less than |
1/5 x the overhang from the column to base plate edge |
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Anchor rods made from what material |
ASTM A36 |
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Seated beam shear designed to support what kind of load |
Vertical only |
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Seated beam shear most commonly used |
At beam to column supports |
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Stiffened thickness must not be less than |
Beam web thickness |
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Min. And max end plate thickness |
6mm min 10 mm max |
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End plate thickness based on |
Minimum edge distance |
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Minimum angle thickness |
6mm |
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Shear connections are for |
Vertical shearing |
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Minimum and maximum clearance between beam and column |
10-20 mm |
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Vertical support members In a structural steel frame |
Columns |
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Horizontal support members inna structural steel frame building. Usually made from wide flange shapes |
Beams |
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Horizontal support members in structural frame used to span between columns in building or between supports in a bridge |
Girders |
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Built up shapes that support roofs and floor systems. Used in place of girders when long spans desired but overall weight is a consideration |
Trusses |
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The thickness of material or parts which the fastener is design to secure when fully assembled |
The Grip |
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Bolt body length is from |
Underside of the head to the last scratch of thread |
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Bolt length |
Length from underside of the head to the extreme end of the bolt |
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Test load which a fastener must withstand without any indication of significant deformation or failure |
Proof load |
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Thread length of a bolt |
From the extreme point of the bolt to the last complete thread |
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Circular boss on the bearing surface of a bolt or nut |
Washer face |
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Shop bolt |
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Countersink near side |
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Countersink far side |
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Open holes |
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Field splice |
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What tool is being used on the beam |
Beam web gauge |
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% of holes in all the joints must have hand tightened bolts or drift pins in place before removing crane |
50% |
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Is dry packing grout acceptable in bearing areas? |
No |
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What is the type of grout used for bearing areas |
Sika 212 flowable grout |
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CSA standard for structural welded steel construction |
W59 |
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CSA standard for welding of steel structures |
W47.1 |