1.What is the difference between steel bar and steel plate
The difference between plate and bar is based upon size and production procedure. Flat stock has
historically been classified as a bar if it is less than or equal to 8 in. wide, and as a plate if it is
greater than 8 in. wide. See the AISC LRFD Manual of Steel Construction, third ed., page 1-9 for
discussion
2.Is it acceptable to galvanize ASTM F1554 anchor rod?
Yes. ASTM F 1554 anchor rods can be galvanized and the requirements for the protective
coating are stated in that ASTM F1554 Standard
3.Explain About DTI Washer?
DTI means “direct tension indicator,”a deformation-calibrated washer used for the installation
of high-strength bolts.
4.Explain About Beveled Washer & It’s condition ?
Beveled washers are used to compensate for a lack of parallelism between the outer faces of a
bolted joint as is found in such cases as a joint involving the flange of an American standard beam
(S-shape). To do so, the beveled washer must be properly oriented in the assembled joint. The
square or rectangular shape simplifies proper orientation during installation.
5.Name three methods for setting a column base to proper elevation
The use of a leveling plate, leveling nuts, and shim stacks are three alternatives. These and other
methods are discussed in greater detail in the AISC LRFD Manual of Steel Construction, beginning
on page 11-54
6.What is the definition of “backgouging”?
According to AWS D1.1.-2000, backgouging is “the removal of weld metal and base metal from
the weld root side of a welded joint to facilitate complete fusion and complete joint penetration
upon subsequent welding from that side
7.What is a “batten plate”?
A batten plate is a plate element used to rigidly join two parallel components of a built-up
column, girder, etc. designed to transfer shear between each component.
8.Explain about purlin?
A horizontal longitudinal member that rests on the top chords of a roof truss or girder to support
the roof..
9.Explain about girt?
A horizontal member in the side or end of a building used to support side covering.
10.Explain about sweep & Camber with sketches?
Camber: A comparatively flat vertical curve placed in a truss,beam or girder to counter act a part
of deflection.
11.Explain about E-Plans?
A drawing consisting of line diagrams representing framing in plan,elevation,section etc to
which are added principal dimensions,erection marks,notes and, when required,enlarged details,thus
providing the erector with sufficient information to place the members in the structure.These
drawings donot normally show the erection scheme,schedule,rigging devices,temporary
supports,safety devices etc.
12.When Grout Holes Are Required in Base Plate?
Grout holes are used when the base plate is 2'-0".
13.Caliculate the length of anchor bolt ?
Dia of rod ¾,Grout thk2”,Base plate thk 1”3/4
length of anchor rod = embed+projection
= (12d)+(Gt+BPt+2d+1/2)
= 12(3/4) + 2 + 1 ¾ + 2(3/4) + ½
= 4'-2"3/4.
14. What diameter hole is currently recommended in a base plate for a 1” diameter anchor
rod?
113/16 inch diameter. The current recommendations for anchor rod holes in base plates are
listed in Table 14-2 of the 3rd edition LRFD Manual. These hole sizes have been increased from the
earlier ASD editions to provide for better harmonization with actual performance of other trades in
setting anchor rods.
15.What does the acronym FCAW-S stand for?
Flux-cored arc welding—selfshielded.From Annex B of AWS D1.1-2000: a flux cored arc
welding process
16.What are two basic types of camber?
Two basic types of camber are natural mill camber and induced camber
17. What is a faying surface?
According to the glossary of the 2004 RCSC Bolt Specification (a free download from
www.boltcouncil.org),“faying surface” is defined as the plane of contact between two plies of a
joint.
18.What material type is commonly specified for floor plate?
ASTM A786 is the standard specification for rolled steel floor plates
19).Which is the proper specification of the material: “ASTM A992 grade 50” or
“ASTM A992”?
Because ASTM A992 is a 50 ksi material only, it is properly specified as “ASTM
A992”.
20.Which type of brace is commonly referred to as a “Chevron” brace?
inverted V-brace
21.What is AESS?
AESS stands for Architecturally Exposed Structural Steel. AISC Code of Standard
Practice Section 10 covers fit, finish, and other related requirements for
steel that is designated in the contract documents as AESS. Structural steel can
be designated as AESS when the desired architectural effect or appearance of
exposed structural steel is such that the additional cost of more stringent
tolerances and preparation is justified.
22.What is a snug-tight bolted joint?
According to the glossary of the bolt spec, a snug-tight joint is one in which the
bolts have been installed in accordance with Section 8.1. The snug-tightened
condition is the tightness that is attained with a few impacts of an impact wrench
or the full effort of an ironworker using an ordinary spud wrench to bring the plies
into firm contact.
23.What is a W530x66?
W530x66 is the metric designation for a W21x44. The nominal depth of a
W21x44 is 530 mm, and its weight is 66 kg/m. The metric equivalents
of all U.S. Structural steel shapes,
24.What is first bolt distance for W8 beam connection?
2 1/2" inch
25.Commonly used Shear tab thickness ?
3/8" thk
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