BIM and Tolerancesbimforum.org/wp-content/uploads/2017/11/BIMForum_20… · ·...

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Tolerances & The Intolerant World of

Structural BIM Coordination

Dave Merrifield

#BIMForumED

BIM and TolerancesBIM and TolerancesBIM and TolerancesBIM and Tolerances

Speaker Twitter Handle

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BXP Level of Development

Defines trade specific LOD requirements

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CONCRETE CAST-IN-PLACE

LOD 200 LOD 300 LOD 350

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STEEL BASE PLATE DESIGN DRAWINGS

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BASE PLATE LOD 100

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BASE PLATE LOD 200

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BASE PLATE LOD 300

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BASE PLATE LOD 350

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BASE PLATE LOD 400

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300 350350350350 400

PERMITTRADE

COORD. PLACEMENT

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Scrap Selection Electric Arc Furnace Ladle Refining

Finished Product Rolling Mill Continuous Casting

Gerdau

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Gerdau

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Mill

Gerdau

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Fabrication

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Erection & Field

MaterialFractional expansion

per degree C x10^-6

Fractional expansion

per degree F x10^-6

Glass,

ordinary9 5

Aluminum 24 13

Brass 19 11

Copper 17 9.4

Iron 12 6.7

Steel 13 7.2

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AISC 15th Ed. Steel Construction Manual (2017)

Specification for Structural

Steel Buildings

&

Code of Standard Practice for

Steel Buildings and

Bridges

REFERENCED SPECIFICATIONS, CODES AND STANDARDS

IMPORTANT TO KNOW:

1. 2018 IBC

2. 2016 ASCE 7

3. 2015 AWS D1.1

4. 2014 RCSC Specification

5. 2014 ACI 318

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Architecturally Exposed Structural Steel (AESS)

1. AESS 1: Basic elements

2. AESS 2: Feature elements > 20 ft

3. AESS 3: Feature elements ≤ 20 ft

4. AESS 4: Showcase elements w/special

surface & edge treatment

5. AESS C: Custom

AESS 1: $

AESS 2: $$

AESS 3: $$$

AESS 4: $$$$

AESS C: $$$$$

Tolerances & Structural Steel 2016 AISC Standards: AISC 303-16

Tolerances absent from this Code

or the contract documents shall

not be considered zero by default.

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1.New Shapes.

2.Updates

dimensions.

Updated fillet

radii kdet, k1, Taffected

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References

Handbook of Construction Tolerances, 2nd Edition, by David Kent Ballast, FAIA, CSI

ISBN: 978-0-471-93151-5, 384 pages, March 2007

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Mill Tolerances for W and HP Shapes

Industry Standards

• AISC 303-16, Code of Standard Practice for Steel Buildings and Bridges (Chicago: American Institute of Steel Construction, Inc., 2016).

• ASTM A6/A6M, Standard Specification General Requirements for Rolled Structural Steel Bars, Plates, Shapes, andSheet Piling (West Conshohocken, PA: American Society for Testing and Materials, 2005).


ISBN: 978-0-471-93151-5, 384 pages, March 2007

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Mill tolerances for length of Mill tolerances for length of Mill tolerances for length of Mill tolerances for length of W and HP shapesW and HP shapesW and HP shapesW and HP shapes

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Permissible variation in camber and sweep for Permissible variation in camber and sweep for Permissible variation in camber and sweep for Permissible variation in camber and sweep for W and HP shapesW and HP shapesW and HP shapesW and HP shapes


ISBN: 978-0-471-93151-5, 384 pages, March 2007

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Permissible variation in length for W and HP shapesPermissible variation in length for W and HP shapesPermissible variation in length for W and HP shapesPermissible variation in length for W and HP shapes


ISBN: 978-0-471-93151-5, 384 pages, March 2007

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Mill Tolerances for S and M channels Mill Tolerances for S and M channels Mill Tolerances for S and M channels Mill Tolerances for S and M channels


ISBN: 978-0-471-93151-5, 384 pages, March 2007

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Mill Tolerances for S and M shapes and channels Mill Tolerances for S and M shapes and channels Mill Tolerances for S and M shapes and channels Mill Tolerances for S and M shapes and channels


ISBN: 978-0-471-93151-5, 384 pages, March 2007

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Mill Tolerances for Structural Angles & Tees Mill Tolerances for Structural Angles & Tees Mill Tolerances for Structural Angles & Tees Mill Tolerances for Structural Angles & Tees

THIS SECTION INCLUDES INFORMATION FOR ROLLED TEES

AND STRUCTURAL-SIZE ANGLES. THERE ARE ADDITIONAL

TOLERANCES FOR BAR-SIZE ANGLES, WHICH INCLUDE THOSE

WITH LEGS LESS THAN 3” (75 mm). REFER TO ASTM A6/A6M

FOR INFORMATION ON THESE SMALLER ANGLES AND FOR TEE

SECTIONS.


ISBN: 978-0-471-93151-5, 384 pages, March 2007

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Angles & T’s


ISBN: 978-0-471-93151-5, 384 pages, March 2007

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Mill Tolerances for Pipe and TubingMill Tolerances for Pipe and TubingMill Tolerances for Pipe and TubingMill Tolerances for Pipe and Tubing

THIS SECTION INCLUDES INFORMATION FOR STRUCTURAL PIPE AND

TUBING THAT ARE COMMONLY USED FOR COLUMNS IN RESIDENTIAL

AND LIGHT COMMERCIAL CONSTRUCTION. IN MOST CASES, THE

ALLOWABLE MILL TOLERANCES ARE SMALL ENOUGH THAT PROBLEMS

WITH ARCHITECTURAL DETAILING ARE NOT ENCOUNTERED. THE

RELATIVELY LARGE MILL TOLERANCES FOR LENGTH ARE ADJUSTED AT

THE FABRICATING PLANT TO MORE PRECISE MEASUREMENTS IF

NECESSARY.


ISBN: 978-0-471-93151-5, 384 pages, March 2007

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Length tolerances for pipe and tubingLength tolerances for pipe and tubingLength tolerances for pipe and tubingLength tolerances for pipe and tubing


ISBN: 978-0-471-93151-5, 384 pages, March 2007

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Twist tolerances for square and Twist tolerances for square and Twist tolerances for square and Twist tolerances for square and rectangular tubingrectangular tubingrectangular tubingrectangular tubing


ISBN: 978-0-471-93151-5, 384 pages, March 2007

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HSS ROUND

Handbook of Construction Tolerances, 2nd Edition,

by David Kent Ballast, FAIA, CSI

ISBN: 978-0-471-93151-5, 384 pages, March 2007

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#BIMForumED

HSS



ISBN: 978-0-471-93151-5, 384 pages, March 2007

#BIMForumED Speaker Twitter Handle

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#BIMForumED

• Vertical

• Horizontal

• Field Welding



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#BIMForumED

Steel Column Erection TolerancesSteel Column Erection TolerancesSteel Column Erection TolerancesSteel Column Erection Tolerances

INDUSTRY STANDARDS

AISC 303-05, CODE OF STANDARD PRACTICE FOR STEEL

BUILDINGS AND BRIDGES (CHICAGO: AMERICAN

INSTITUTE OF STEEL CONSTRUCTION, INC., 2005).

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• A COLUMN IS CONSIDERED PLUMB IF THE DEVIATION OF THE WORKING LINE OF THE

COLUMN FROM TRUE PLUMB DOES NOT EXCEED 1:500.

• HOWEVER, FOR INDIVIDUAL EXTERIOR COLUMNS, AISC STANDARD PRACTICES LIMIT THE

TOTAL VARIATION TO I” (25 MM) TOWARD THE BUILDING LINE AND 2” (50 mm) AWAY

FROM THE BUILDING LINE UP TO THE TWENTIETH FLOOR AND A MAXIMUM DEVIATION OF

1/16” (2 mm) PER FLOOR ABOVE THE TWENTIETH FLOOR UP TO A MAXIMUM OF 2 IN. (50

MM) TOWARD AND 3” (75 mm) AWAY FROM THE BUILDING LINE.

• ALTHOUGH TOLERANCES FOR ANCHOR BOLT PLACEMENT ARE NOT THE RESPONSIBILITY

OF THE FABRICATOR OR THE ERECTOR, THE AISC CODE REQUIRES THAT THE CENTER-TO-

CENTER DIMENSION BETWEEN ADJACENT ANCHOR BOLT GROUPS AND FROM THE

ESTABLISHED COLUMN LINE NOT VARY BY MORE THAN ¼” (6 mm). THE CENTER-TO-

CENTER DISTANCE BETWEEN ANY TWO BOLTS WITHIN AN ANCHOR BOLT GROUP CAN NOT

VARY BY MORE THAN ¼” (3 mm).

ALLOWABLE A-ROD TOLERANCES



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COLUMNS

Handbook of Construction Tolerances, 2nd

Edition, by David Kent Ballast, FAIA, CSI

#BIMForumED

Location of Exterior Steel Columns in PlanLocation of Exterior Steel Columns in PlanLocation of Exterior Steel Columns in PlanLocation of Exterior Steel Columns in Plan

Industry StandardsAISC 303-05, Code of Standard Practice for Steel Buildings and Bridges

(Chicago: American Institute of Steel Construction, Inc., 2005).

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TOLERANCES: COL. CONT. INTERMED. BEAMS



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TOLERANCES FOR MEMBERS WITH FIELD SPLICES



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Steel Beam/Column ConnectionsSteel Beam/Column ConnectionsSteel Beam/Column ConnectionsSteel Beam/Column Connections

Industry Standards AISC 303-05, Code of Standard Practice for Steel Buildings and Bridges

(Chicago: American Institute of Steel Construction, Inc., 2005).

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ARCHITECTURALLY EXPOSED STRUCTURAL STEELARCHITECTURALLY EXPOSED STRUCTURAL STEELARCHITECTURALLY EXPOSED STRUCTURAL STEELARCHITECTURALLY EXPOSED STRUCTURAL STEEL

CAMBER, SWEEP, AND LENGTHHandbook of Construction Tolerances, 2nd


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JOINTS

WELDING

ARCHITECTURALLY EXPOSED STRUCTURAL STEEL



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ERECTION

Handbook of Construction

Tolerances, 2nd Edition, by

David Kent Ballast, FAIA, CSI

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#BIMForumED

Elevator Shaft TolerancesElevator Shaft TolerancesElevator Shaft TolerancesElevator Shaft Tolerances

Industry Standards AISC 303-05, Code of Standard Practice for Steel Buildings and Bridges

(Chicago: American Institute of Steel Construction, Inc.,2005).

Building Transportation Standards and Guidelines (Salem, NY: National

Elevator Industry, Inc.)

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ELEVATOR SHAFT




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#BIMForumED

ACCUMULATED FRAME TOLERANCE EXAMPLE




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DIFFERENTIALCOLUMNSHORTENING




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#BIMForumED

ADJUSTABLEITEMS




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CANTILEVEREDMEMBERS




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#BIMForumED

FIELD-ASSEMBLED MEMBERS




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Precast on steelPrecast on steelPrecast on steelPrecast on steel




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#BIMForumED

Brick on steelBrick on steelBrick on steelBrick on steel





https://csengineermag.com/article/structural-detailing-solutions-to-avoid-thermal-bridging/

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https://www.ancon.co.uk/system/uploads/content/summary_image/545/open_graph/Ancon_STS_in_situ-9ec39a-49ebd3-d90d51-2cb2e4.jpg

• Window Wall

• Concrete

• Reinforcing

• Masonry

• Embed

• Structural Steel

• Cold Formed Metal Framing

• Thermal Break

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• Window Wall

• Concrete

• Reinforcing

• Masonry

• Embed

• Structural Steel

• Cold Formed Metal Framing

• Thermal Break


https://www.ancon.co.uk/system/uploads/content/summary_image/464/twitter/8-536ab0-097f41-b060ac.jpg

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Stone



David Kent Ballast, FAIA,

CSIC

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Curtain Walls


Tolerances, 2nd Edition, by David

Kent Ballast, FAIA, CSIC

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Masonry joint tolerances

CONCRETE MASONRY JOINTS




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PT TENDONS

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PT TENDONS

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Plant Examples

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Laser Data

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Understanding Existing Fit-up

81

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Memorial Herman

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Memorial Herman

83


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Tolerances, Complex Geometry


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