Embeds 1) Embeds are

a) Column anchor bolts b) Beam anchor bolts

c) Joist, beam and column bearing plates that are cast in concrete or block walls d) Beam and beam & plate lintels supported by and supporting concrete or masonry e) Angle lintels supported by and supporting concrete or masonry

f) Pipe bollards and rail sleeves

g) Any item built into concrete or masonry

2) Embeds can often be quickly detailed simply putting a reference to structural or Architectural drawings below detail or in the shop bill

3) Embed items should be picked up quickly in order to get them to the job site before the concrete and masonry begins

4) Embeds in most case will not require paint, especially where they come in contact with concrete or require field weld.

12.4 Columns

1. Columns must be cut square at bottom of shaft and should be noted FIN or finish on details and in bill of material.

2. Stub dimensions

a. All hole groups must be stubbed from end of shaft, not from bottom of base plate.

b. One stub per hole group is sufficient provided that holes are equally Spaced.

c. All pieces welded to column should be stubbed from end of shaft.

3. Appropriate weld symbols for each condition should be shown at least once on each sheet.

4. North “N” mark should be shown on the column.

5. If column is butt welded with base plate, edge preparation should be shown. (Ref. Page 39) 6. Reference elevations relating back to erection drawings should be used to help in detailing

and checking.

7. Columns are generally to be drawn in vertical position.

8. Grid locations should be noted in ( ) under column mark.

9. In case of vertical bracing gussets dimensions from working point (W.P) to the first hole is to be shown. Single part detail of bracing gusset to be detailed if required.

10. A view as to be taken to show the offset of shear plate from center line (C.L) (Ref. Page 39) 11. Gap between Clip angles welded to column should be equal to beam web thickness plus

1/8”.

12. In tubular sections with through plates give slot size with stub dimension.

STEEL DETAILING TRAINING MANUAL

32 of 99 12.5 Beams

1. Beams are generally to be drawn in a horizontal position.

2. Reference dimensions relating back to erection drawings should be used to help in detailing and checking.

3. Stub dimensions

a) All hole groups must be stubbed from back of framing angle, end plates or end of material.

4. One stub per hole group is sufficient provided that holes are equally Spaced.Normal set back from back of framing angles to end of beam is ½”

a) All pieces welded to beams should be stubbed from back of clip, end plate or end of material.

5. Appropriate weld symbols for each condition should be shown at least once on each sheet.

Weld size used for connecting clip angles / plates to beam should be 1/16” less than web thickness of beam (UNO).

6. Camber should be noted on details as well as in the BOM. Grinding symbol to be shown wherever required. In case of full moment connection edge preparation details to be shown.

7. Coping dimensions to be given from end of clip. Also cope value to be rounded to nearest

¼”.

8. In “TS” beams with through plates, slot size and stub dimension should be given. Ensure that it is closed by an end or closure plate on either ends.

9. Always coordinate with the bolt holes connecting with the other beams, bracings and columns

10. For bracing gussets give dimension from working point to the first hole with slope.

11. If the end connections are bolted, then field bolts should be sent along with the beams.

12. For standard clip angle marks (Ref. Page 42)

13. In sloped beam with clip angle connections working point and slopes should be mentioned clearly. The working point should be in the same plane.

14. The detailing of beams will always be from bottom to top & left to right.

15. Stub dimensions should be given to centerline for stiffeners and end of plate for shear plates

STEEL DETAILING TRAINING MANUAL

36 of 99 12.6 Bracing

1. Bracing locations to be indicated in erection drawing.

2. In Bracing erection drawings the following to be shown.

a. Member size and marking.

b. Working points with dimensions.

c. Triangulation.

d. For Bolted connections à Dimensions from WP to first Bolt hole.

e. For Welded connections à Dimensions from WP to end of the member f. Mention field weld symbol, size and weld length if required.

3. Bracing member should be detailed horizontally unless unavoidable. All information regarding bracing member in tubular column is preferable.

4. For tubular section provide closure plate on both sides.

5. For double angle bracings provide spacer plate as per contract drawings.

6. For welded bracings working line is along center of gravity and for bolted bracings it is along bolt line.

STEEL DETAILING TRAINING MANUAL

40 of 99 12.7 Miscellaneous

12.7.1 Stairs

i. Stairs should be detailed using architectural drawings for concept, while bearing in mind that all job specifications, State building codes and Handicap codes must be used.

ii. Stringers should be detailed with enough information to facilitate lay out in the shop.

12.7.2 Hand rails

i. Pipe rail 1-1/4 diameter std. (1-1/2 O.D) shall be typical with the same size post (U.N.O). Post shall be preferably at 6’-0” o.c. and 8’-0”

maximum.

ii. Post shall generally be placed at bottom floor stringer.

iii. Rails at stairs may be detailed with stringers or separately.

iv. Detail post and rails with sufficient information to facilitate shop layout.

v. Rails should be detailed with a heavy single line.

12.7.3 Ladders

i. Materials: Stringers – 3/8 x 2-1/2 F.B.;

a. Rungs – ¾ diameter rods;

b. Connection material – 3/8 x 2-1/2 c. F.B. – Bent;

d. Bolts – ½” Diameter (U.N.O) ii. Width = 1’-6” inside; rung spacing = 1’-0” +/-

iii. Otherwise detail as shown on contract documents or as noted in contract specifications.