TEKLA INTERVIEW QUESTION PAPER-6

1.WHAT IS THE FULL FORM OF AWS AND LRFD?

AWS:AMERICAN WELDING SOCIETY.

LRFD: LOAD RESISTANCE FACTORY DESIGN.

2.WHAT ARE THE INPUT DRAWINGS OF STEEL DETAILING?

1.STRUCTURAL DRAWING

2.ARCHITECTURAL DRAWING

3.CIVIL DRAWINGS.

4.DECK DRAWINGS

5.JOIST DRAWINGS

6.ELEVATOR DRAWINGS

3.WHAT IS THE FLANGE GAGE FOR W8X31 COLUMN OR BEAM?

4"

4.DEFINE BACK CHARGE?

COSTS DIRECTED TO A FABRICTOR OR STEEL DETAILER FOR ERRORS IN FABRICATION OR DETAILNG.

5.WHAT IS MEANT BY SQ2E , SQ1E AND BEV?

SQ2E:SQUARE CUT BOTH ENDS

SQ1E:SQUARE CUT ONE END

BEV:BEVEL

THIS TERMS USUALLY WILL MENTION IN DRAWING BOM

6.WHAT ARE THE TYPES OF DECK?

1.COMPOSITE FLOOR DECK

2.ROOF DECK.

3.CELLULAR DECK.

4.FORM DECK.

7.WHAT IS THE USE TOE PLATE AND RUNGS?

TOE PLATE:

IS A SAFETY FEATURE IN HANDRAILS TO AVOID THE ACCIDENTS DUE TO SLIPPING OF FOOT.

RUNG:

RUNGS ARE STEPS IN LADDER TO ACCESS THE PLATFORM OR FLOOR

8.WHAT IS GRADE FOR REBAR ?

NORMAL GRADE IS ASTM A706 GRADE-60

IF IT IS WELDED THEN ASTM A615

9.IN W16X40 WHAT IS 16 AND WHAT IS 40?

16-IS NOMINAL DEPTH

40 IS LBS/FEET

10.WHAT IS THE CLEARENCE BETWEEN WALL TO HANDRAIL OR WALL RAIL?

CLEARENCE IS 1 1/2"

11.WHAT IS THE USE OF BACK UP BAR?

IN ORDER TO AVOID THE OVERFLOW OF WELD.

12.WHAT ARE THE TEMPORARY BOLTS AND WHAT ARE THE HIGH STRENGTH BOLTS?

A307 BOLTS ARE TEMPORARY  WHEREAS A325 AND A490 ARE HIGH STRENGTH BOLTS.

13.IF ONE BEAM IS STRAIGHT AND OTHER BEAM IS SKEWED THEN WHAT KIND OF 

CONNECTION WE NEED TO PROVIDE?

BENT PLATE CONNECTION WE NEED TO USE

14.WHAT IS ASTMA325T BOLT?

BOLT IS FULLY THREADED UP TO FULL LENGTH OF SHANK.

15.WHAT IS THE MAXIMUM AVAILABLITY LENGTH FOR A BOLT?

 MAXIMUM LENGTH AVAILABLITY FOR A BOLT IS 8" ,IF IT IS MORE THAN 8" THEN

WE NEED USE ROD.

OSHA REQUIREMENTS AND RULES

 

 OSHA REQUIREMENTS

BASE PLATE :

• BASEPLATE NEED TO HAVE MINIMUM 4 ANCHOR BOLTSA

• USAGE OF LEVELING NUT OR LEVELING PLATE SHOULD BE DISCUSSED WITH ERECTOR

• DETAILER SHOULD REFER TO DESIGN DRAWINGS TO PROVIDE OVERSIZED HOLES IN BASE PLATE ,IF INFORMATION MISSING THEN WE NEED TO REFER TABLE C-J9.1 AND 14.2 OF AISC BOOK.

COLUMN

• COLUMN SPLICE SHOULD BE AT 4'-0 FROM FINISHED FLOOR 

 

•  ALL PERIMETER COLUMNS SHOULD HAVE SAFETY HOLES FOR WIRE GUARD RAIL ONE AT 1'-9 FROM FINISHED FLOOR AND SECOND AT 3'-6 FROM FINISHED FLOOR

 

•  ALL COLUMNS SHOULD BE PROVIDED WITH LIFTING HOLE SPECIALLY TIER COLUMNS,NORMALLY LIFTING HOLE DIA IS 2'-0.

 

•     ALL COLUMNS SHOULD HAVE CORRECT ORIENTATION MARK TO ERECT THE COLUMN.

• EXTENDED SHEAR TAB CONNECTION TO BE FOLLOWED WHERE BOLT ACCESS IS BLOCKED BY FLANGES.       

BEAM:

• MINIMUM OF TWO BOLTS REQUIRED AT EACH END OF BEAM FOR ERECTIO

• D/2 RULE TO BE SATISFIED AT EACH CONNECTION TO SATISFY REQUIRED LOADS

• ALL DOUBLE ANGLE CONNECTIONS AT COLUMN WEB OR BEAM WEBMUST HAVE STAGGERED CLIP ANGLES OR A BEAM SEAT  OR A TOP FLANGE CLIP ANGLE .WHEN NOT POSSIBLE TO PROVIDE SAFETY CONNECTIONS THE DETAILER SHOULD ADD A NOTE OF WARNING  TO THE ERECTOR ON EPLANS.

JOISTS:

• IF JOIST SPAN  MORE THAN 40'-0  THEN WE SHOULD BE PROVIDED WITH 2 ERECTION BOLTS

• VERTICAL STABILZER PLATE NEED TO BE PROVIDED, THIS PLATE SHOULD BE OF MINIMUM 6"X6"  AND 3" BELOW THE BOTTOM OF JOIST, WITH 13/16DIA HOLE FOR GUYING OR PLUMBING CABLES.

DECK :

• DECK SUPPORT MAY BE REQUIRED AT DECK CUTOUTS NEAR BEAM TO BEAM OR BEAM TO COLUMN CONNECTIONS,REFER DESIGN DRAWING OR THE CLENT FOR PREFERRED METHOD

SNAGGING HAZARDS:

• AVOID SHARP CORNERS.

 

CONNECTIONS:

• USE BEARING CONNECTIONS AND AVOID HANGING CONNECTIONS.

TRIPPING HAZARDS:

• ANY CONNECTIONS OR OBSTRUCTIONS SHOULD BE AVOIDED ON TOP OF BEAM OR JOIST.

FALL PROTECTION:

• MULTISTORAGE STRUCTURE REQUIRES GUARD RAIL CABLES AT FLOOR PERIMETER ,INTERIOR OPENINGS  AND ROOF OPENINGS.THIS PROTECTION SUPPORT SHOULD BE AGREED UPON PRIOR TO COMENCEMENT OF DETAILING.

ERECTION AID:

• FOR FIELD WELDS OF TUBES OR BRACINGS ,WE NEED TO PROVIDE ERECTION BOLT OR ERECTION ANGLE FOR SUPPORT

WHAT IS TEKLA & STEEL DETAILING?

TEKLA means building inormation modelling software used in building and construction industries for steel,concrete and precast detailng.

Types of versions in tekla.

17.0,

17.1,

18.0,

18.1,

19.0,

19.1,

20.0,

20.1,

21.0,

21.1.

TEKLA 2017,TEKLA 2018,TEKLA 2019,TEKLA 2020.

WHAT ARE THE ENVIORNMENTS IN TEKLA?

US IMPERIAL,US METRIC,UK,INDIAN.

FOR US WE WILL USE US IMPERIAL.

WHAT ARE THR ROLES IN TEKLA?

 STEEL DETAILING

 CASTING,

ENGINEERING

WHO WILL DO PROJECT IN TEKLA ?

DETAILER,

MODELER

CHECKER

STEEL DETAILNG?

THE PROCESS OF CONVERTING DESIGN DRAWING IN TO  SHOP & FIELD DRAWINGS IS KNOWN AS STEEL DETAILING.

 HOW PROCESS WILL START?

What are the responsblies of detailer?

1.HE NEED TO EDIT SHOP DRAWINGS & ERECTION DRAWINGS WITH RESPECTIVE TO DESIGN DRAWINGS IN AN UNDERSTANDING MANNER.

what are the responsiblies of modeler?

HE NEED TO CONSTRUCT THE BUILDING IN 3D VIEW WITH RESPECTIVE 

TO DESIGN DRAWINGS IN AN UNDERSTANDING MANNER.

What are the responsibilities of checker?

He need to check and correct the errors of detailer and modeler with respective to design drawings.

He need to coordinate with detailer and modeler to achieve desired output.

*************************************************************************PLEASE MENTION YOURS COMMENTS AND SUPPORT ME FOR FURTHER

UPDATES.

MOMENT SPLICE CONNECTIONS (STEEL DETAILING & TEKLA)

 1.DRAW FLANGE PLATED SPLICE MOMENT CONNECTIONS?

                                  FLANGE PLATED SPLICE MOMENT CONNECTIONS.

 

DIRECTLY WELDED MOMENT SPLICE CONNECTION

TEKLA & STEEL DETAILING INTERVIEW SIX QUESTIONS

 1.WHICH TYPE OF CONNECTION TO BE PREFERABLE IN FIELD TO REDUCE COST?

   BOLTED CONNECTION IS PREFERABLE WHEN COMPARED TO FIELD WELDING.

*.FIELD WELD IS SO COSTLY THAN FIELD BOLTING.

2.PLEASE DRAW COLUMN WITH BASE PLATE CONNECTION?

JUST FOR REFERENCE

COLUMN WITH BASE PLATE

1.       Bottom of base plate elevation.

2.       Orientation mark of the column.

3.       Column to base plate weld.

4.       Locations of the holes in base plate with respect to the column center line.

5.       Hole diameter and number of holes in base plate.

6.       Base plate thickness.

3.WHAT IS THE HOLE SIZE IN BASEPLATE FOR 3/4 DIA TO 2 1/2 DIA ANCHOR RODS?

Size of Anchor – Rod Holes In Base Plates
Anchor Rod Dia	Max. Hole Dia  As per LRFD	Hole Dia  As per ASD
3/4	1 5/16	1  1/16
7/8	1 9/16	1  3/16
1	1 13/16	1  1/2
1 1/4	2 1/16	1 3/4
1 1/2	2  5/16	2
1 3/4	2 3/4	2 1/4
2	3 1/4	3
2 1/2	3 3/4	3 1/2
Larger holes are permitted if Plate Washers Used.

4.WHAT IS THE USE OF LEVELLING PLATE?

Normally thickness of leveling plate will be ¼ -in. The  leveling plate may be larger than the base plate to accommodate tolerance of Anchor Rod placement.

5.WHAT IS THE USE OF PLATE WASHER?

 The oversize holes should be covered with a heavy plate washer. The minimum thickness should  be one-third the diameter of the anchor rod

  6.WHAT IS THE GRABRAIL EXTENSION FROM LAST TREAD ?

1'-0

 

 

CONNECTIONS SKETCHES-STEEL DETAILING -USEFUL POST.

 1.PLEASE DRAW DOUBLE ANGLE CONNECTIONS ?

CLIP ANGLE CONNECTIONS

2.PLEASE DRAW SHEAR PLATE CONNECTION?

END PLATE CONNECTION

SHEAR PLATE CONNECTION.

                           EXTENDED SHEAR TAB CONNECTION                                                                                                 

                                                                                                                                                   3.PLEASE DRAW T JOINT CONNECTIONS ?

T-JOINT CONNECTION

4.DRAW SINGLE ANGLE CONNECTIONS?

5.DRAW COLUMN FLANGE MOMENT BOLTED CONNECTION?

6.DRAW COLUMN WEB MOMENT  BOLTED CONNECTION?

7.DRAW COLUMN FLANGE MOMENT WELDED CONNECTION?

8.DRAW COLUMN WEB MOMENT WELDED CONNECTION?

 

                                                                                                                                                  

TEKLA & STEEL DETAILING INTERVIEW QUESTION PAPER-5 .

 1.WHAT IS THE GRADE FOR WASHER ,NUT ,STUD AND DTI WASHER?

WASHER-F436

NUT-A563

DTI WASHER-F959

STUD-A108

2.WHEN TAPPERED WASHERS WIIL USE?

TAPPERED WASHERS ARE USED WHEN THE SURFACE BEING BOLTED H AS A

SLOPED SURFACE,SUCH AS FLANGE OF C SHAPE AND S-SHAPE.

3.DEFINE BOLT LENGTH?

BOLT LENGTH IS THE DISTANCE FROM BEHIND THE BOLT HEAD TO END OF THE BOLT.

4.WHAT IS A SNUG TIGHT INSTALLATION?

SNUG TIGHT IS THE BOLT TIGHTENING PROCESS AND TIGHTNESS IS ATTAINED WITH FEW HITS OF IMPACT WRENCH OR FULL EFFORT OF AN IRON WORKER BY USING ORDINARY SPUD WRENCH  TO BRING THE CONNECTED STEEL IN TO FIRM CONTACT.

5.WHAT IS THE LONG SLOTTED HOLE FOR 1" BOLT?

1 1/16" X2  1/2"

6.WHAT ARE THE MAIN POINTS TO BE CONSIDERED WHILE CHECKING DRAWINGS?

100% DIMENSIONS ACCURACY.

CUSTOMER SPECIFIC STANDARDS.

DESIGN DRAWING POINTS.

FABRICABILITY

ERECTABILITY

7.WHO IS FABRICATOR AND ERECTOR?

FABRICATOR:IS RESPONSIBLE FOR FABRICATING THE STRUCTURES IN THE SHOPS BASED ON DETAILS GIVEN BY THE DETAILER.

ERECTOR: IS RESPONSIBLE FOR ERECTING THE STRUCTURE IN FIELD BASED ON THE DETAILS GIVEN BY DETAILER.

8.INCH TO MM CONVERSIONS?

1 INCH = 25.4MM = 0.0254M

1 M = 40 INCHS

1 FOOT = 300 MM = 12 INCHS

1KIP = 454 KILOGRAMS

1000 POUNDS = 1 KIP

1 POUND =  0.454 KILOGRAM

9.WHAT IS STICH WELD?

A SERIES OF WELDS OF A SPECIFIED LENGTH THAT ARE SPACED A SPECIFIED DISTANCE FROM EACH OTHER

10.WHAT IS A CLEAR SPAN?

LENGTH OF SPAN FROM FACE TO FACE OF SUPPORTS IS KNOWN AS CLEAR SPAN.

11.WHAT IS THE LIFTING HOLE DIA FOR COLUMN OR ANY STEEL?

2"Ø MIN