Friday, February 11, 2022

Just 3 questions..

 1.what is the hole tolerance for epoxy anchors?

 Answer:up to  1/2" dia bolt -1/8 tolerance ,if we are using more than 1/2 " dia bolt then we need to use hole tolerance as 3/16.


2.what are the OSHA standards for a column?

1.In perimeter columns we need to provide safety cable holes for safety purpose.


2.column splice should be 4'-0 from finished floor.


3In splice columns we need to provide a lifting hole for lifting purpose.


3.In design drawings if we dnt have connections then what to do?

For shear connections ,we need to refer Aisc table based on the end reaction loads and based on the type of beam whether composite or non composite ,We have charts in Aisc manual.

From AISC tables we need to design the connections and need to cloud in approval.

Other than shear connections,we need ask client for connections.





Thursday, December 16, 2021

Steel detailing Question paper -11

 1.What is the full form of SEOR AND JBE?

SEOR: Senior Engineer of record.

JBE: Joist Bearing Elevation.


2.If Slab thickness 8" but embed plate size is 9" ,what to do?

SOL: We need to accommodate embed plate only in side the concrete if it is projecting out of slab

  then we need to reduce the Size of embed plate to match with the slab thickness.


3.If we have dimensions for operable partition in design drawings,Will you release drawings for 

  Fabrication?

NO,Without receiving final partiton drawings set don't release drawings for fabrication.


4.If members are getting field weld then what to take care in Shop Drawings?

We need to give no paint hatching for members where its get field weld,Also we need to give 2" extra hatching


5.While placing a grid ,What are main step you need to take care?

We need to compare grid dimensions between structural drawings and Arch drawings,If dimensions are  mismatching then we need to raise  RFI .


6..What is the Size of long slotted hole for 1" and 1.5" dia bolt?

For 1"-1 1/16x2 1/2

        1"1/2-1 9/16x3 3/4


7.If suppose W member workable gage 2 "1/4  but design drawings shows to 3/4" bolt ,Is it workable?

No,

1.If we follow  3/4"dia bolt  then bolt will enter in to the encroachment.

2.There will be an edge distance problem. 

So we need to reduce the bolt size to 1/2 dia then we need to take confirmation from client.


8.What is Backgouging?

It is a method of chipping out and filling of the weld on the farside of CJP.




9.Derive E70XX?

E-Electrode.
70-Tensile Strength.
X-Weld position.
X-Electric current used.


10.What are the components of handrail?

1.Top rail
2.Midrail
3.handrail post.
4.Toe plate or angle.


  

Sunday, November 7, 2021

Estimator of structural steel

Anyone need estimation of projects feel free to contact me -tekladetailer2907@gmail.com.

Wednesday, September 29, 2021

While checking anchor bolts,what are the important points to be taken care?

      1.Bottom Of Base plate elevation to be finalized from design drawings


       2.If we use plate washers ,We need to follow over sized holes in base plate i.e 
          for example: if we use 3/4" Ø anchor rod,Hole dia should be 1 5/16"Ø.

      3.Plate washers sizes should be followed for AISC 14.2 table.
         for 3/4"Ø anchor rod , we will follow plate washer size as 1/4"X2X0'-2".

     4.Plate washers is used to cover the over sized holes.

     5.If design drawing does not furnish levelling method pattern then we need send to
         rfi on levelling method,Mostly we will use levelling nut or levelling plate  arrangement.

         we will use levelling plate thickness as 1/4" and we will match plate parameters  to base plate size.

    6. Template : Template is used to match accurate position of anchor rods,Generally
       Template thickness we will follow as 1/8" and we will match length and width as  base plate  size.

    7.Grout hole: If smaller side dimension of the base plate exceeds approximately 2'-0 then we will provide grout hole in base plate.

    8.column schedule to be referred properly ,So that we will exact base plate sizes and  anchor rod dia.

   9.if design drawing does not provide embedment  then we need to calculate embedment 
    by using formula  i.e 12 X Diameter of anchor rod.
   if we use 3/4"Ø then embedment is 9".


  10.If design drawing does not provide projection then we need to calculate projection by 
     using  formula i.e Grout thickness + base plate thickeness + 2 times of anchor rod dia  
      +washer thickness + nut thickness.


  11.We need to identify footing depths properly because we should maintain 3"clearence 
     between bottom of anchor rod and bottom of footing.
     some times in order to maintain footing depth ,We need to deviate embedment values 
     and also we need to ask question for confirmation.


      


 

Friday, August 27, 2021

AUTOCAD BASICS INTERVIEW QUESTIONS

 AUTOCAD BASIC  INTERVIEW QUESTIONS


1.WHAT IS AUTOCAD?

Autocad is  a  computer  aided  designing software which is use  for 2D and  3d  designing  and detailing .

Autocad  is  developed by Autodesk. 


2.WHAT ARE  THE  ADVANTAGES OF AUTOCAD?

  • Provides accurate drawing.
  • spares time and build the  efficiency .
  • We  can provide quality  drawings  with  decorated  hatches.
  • 3D models can be done  for  representation.
  • Modifications can  be done easily.
3.WHAT ARE THE FILE FORMATS USED  IN AUTOCAD?

  • DWG file format used in Autocad.
4.WHAT IS  TEMPLATE  IN AUTOCAD AND ITS USES?

       Template is a file which specifies the styles ,settings,and layout include the title blocks.

5.WHAT IS UI IN AUTOCAD?

UI is a Autocad interface which provides access to most of the commonly used tools.

UI includes the menu bar ,quick access toolbar, command prompt,status bar,The Ribbion.

6.WHAT IS THE LAYERS IN AUTOCAD AND ITS USES?

Layer is a object management system by which we can separate the object's in a drawing according
to their functions.  

For example creating a wall in a different layer and for door also separate layer is required.

Layers are used to control the visibility of objects and assign properties such as color and line type.

7.WHAT IS WORKSPACE IN AUTOCAD AND HOW MANY WORK SPACES ARE AVAILABLE
   IN AUTOCAD?

Work spaces are set of user interface components such as ribbon tabs and pannels , toolbars, palettes
and menu bars ,that are grouped and organized.

There are currently 3 default work spaces available in autocad .In older versions there are 4 work
spaces available include 'classic work space'

1.3D MODELLING
2.3D BASICS 
3.DRAFTING  AND  ANNOTATION.

8.WHICH ARE THE DIFFERENT  TOOLBARS AVAILABLE IN AUTOCAD?

There are many tool bars available in autocad,some important toolbars are  

Draw toolbar, modify toolbar,Dimension toolbar, Layers toolbar ,standard toolbar, Properties tool bar.

9.WHAT IS A COMMAND LINE IN  AUTOCAD ?

Autocad command line is like a combined control panels and index of all autocad you run and have run on your drawing.

It shows which command is currently running and its guides you.

10.WHAT IS THE  USE  OF FILTER IN  AUTOCAD?

Filter is a selection method by which  we  we can select a specified set of objects from drawing.

11.HOW MANY  TYPES OF COORDINATE  SYSTEM  COMMONLY  USED  IN AUTOCAD?

  • Absolute (x,y)
  • Relative (@x,y)
  • Polar(@D<A)
12.WHAT IS THE DIFFERENCE BETWEEN DRAWING,DESIGN  AND DETAILING?

Drawing:Its a rough  sketch of  any product.
Design:Presentation of views (2-D,3-D)without any dimensions.
Detailing:2-D presentation of 3-D Object with proper dimensions.

13.WHAT IS TOLERANCE IN ENGINEERING?

In engineering tolerance is the permissible limits of variation in physical measurement.

14.WHAT IS THE SHORTCUT COMMAND TO CHANGE UNIT IN AUTOCAD?

UN

15.WHICH TYPE OF LINE HAVING INFINITY  LENGTH?

construction line.

16.WHICH COMMAND HAVING TWO SHORTCUT IN AUTOCAD?

COPY:CO,CP

17.WHAT IS THE PAPER SIZE OF A0 AND A3?

A0-841X1129
A3-297X420


                                                                                         


Wednesday, June 23, 2021

Tekla/steel detailing Question paper-10

                       
1).What are the three grade identification colors for ASTM F1554 anchor rods?

F1554-GR.36_BLUE IN COLOUR.
F1554-GR.55_YELLOW IN COLOUR.
F1554-GR.55_RED IN COLOUR.


2).When columns do not have enough local strength, what type of reinforcing
is required to reinforce for web panel-zone shear at a moment connection?

EITHER DOUBLER PLATES OR DIAGONAL STIFFENERS



3.What material type is commonly used for rolled floor plate?

ASTM A786  IS THE MOST COMMONLY USED ROLLED
FLOOR PLATE.



4.Why are fillet welds preferred over groove welds?

Fillet welds generally require less weld metal than groove welds. Additionally, fillet welds do
not generally require beveling and similar base metal preparation. As a result, fillet welds are
generally more economical to make than groove welds. Thus, fillet welds are preferred.



5.Draw Flare Bevel Weld Symbol & Its Condition?

FLARE WELD IS MOST COMMONLY USED TO JOIN  A ROUND OR CURVED PIECE TO
    A FLAT PIECE.


6.Full form of SEOR and GOL?

SEOR_STRUCTURAL ENGINEER OF RECORD.
GOL_GAUGE ON LEG.


7.What is the material grade for twist of type bolts?
 
ASTM F1852 .


8.Please write down the types of beam?

1.sloped beam
2.skwed beam
3.curved beam
4.canted beam
5.hip and valley beam.


9.what is the distance between  hoop to hoop distance in ladder?

4'-0.


10.what is masonry?

The part of building that are made of stone or brick.










Thursday, June 17, 2021

Tekla TEST question paper-9_

1.     High-strength bolts used for the vast majority of field connections are furnished in what two grades?

 A325

A490 

2. The spacing between bolts in standard bolted connections is usually?

3"

3. Currently, the two primary methods of fastening together the major components of a steel-frame structure are BOLTING________and ____WELDING______


4.What angle length is required for a 5-row bolted connection?

1'-3"

5.    Give standard Slot size of 1” dia bolt?

1 1/6"X1"5/16

6.Distance between floor to floor landings is called?

FLIGHT

7    .Maximum column length without splice………. Ft.?

40'-0"

8.What is abbreviation for RFI?

Request for information.

9.  What depth scale is usually used for most steel columns?

12

10.FULL FORM OF BOD,FOW AND JBE?

BOD:BOTTOM OF DECK

FOW:FACE OF WALL

JBE:JOIST BEARING ELEVATION.

1111.When drawing a fillet weld symbol, the size of the fillet weld is always Called out on which side of the symbol?                                                                                                      LEFT SIDE OF THE SYMBOL.

1112 As a detailer what care you need to take if you have SC bolts in a connection?               OVERSIZED HOLES  TO BE PROVIDED                                                                             NO PAINT 3" AROUND HOLES



O







L




4 

Featured Post

WHAT IS TEKLA & STEEL DETAILING?

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