structural level of detail in revit®: when to draw the line and where to model it! will ikerd...
TRANSCRIPT
Structural Level of Detail in Revit®:When to Draw the Line and Where to Model It!
Will IKERDDirector IPD Department, RLGEnglish Version
Image courtesy of Hobart, Yanez, Ramos, Maguey, and Martinez
Brenda Herrera IkerdConsultant, i2concepts a subsidiary of Ikerd Consulting, LLCEnglish and Spanish Version
Spanish Version (Versión en Español)
A recording of this Session and its papers are also available in Spanish. Please visit AU.autodesk.com, session SE333-1 for the Spanish Content. Esta sesión está disponible en espanol.Por favor, visite AU.autodesk.com para ver los documentos de esta sesión.
What to Expect:STRUCTURAL LOD• Who• What• When• Where• Why• How
Is this important to my job / my business?
STRONGLY AGREE if •Architect•Structural Engineer•Mechanical Engineer•Contractor•Sub-contractor•Owner•Legal
DIALOG
Will’s Background
Licensed Practicing Professional Engineer (TX) Masters in Structural EngineerWashington Univesity in St. Louis Focus in parametric modeling of structure (‘96-98).
Areas of interest are Structures Envelope BIM & VDC
Director of IPD Department at RLG, Inc.
Co-Chair
SEI – CASE Joint Committee on BIM
Co-Chair Designers sub-forum
Committee member
Technology Integration Committee
American Concrete Institute ACI Committee 131 BIM
Glass Association of North America BIM Task Force
Will’s Background
Brenda's Background
Founded Ikerd Consulting LLC and its subsidiary i2concepts beginning in 2003.
Started working with Revit Structure V2 (‘05)
Co-Authored Autodesk's 2011 Structural Educational Curriculum
Co-authoring book on Virtual Design and Construction (VDC) with Navisworks in both Spanish and English.
Major Take Away
“Everything should be made as simple as possible, but
not one bit simpler. ”Albert Einstein
TYPES OF BIM MODELS
10
CLASH DETECTION VALUE ENGINEERING
DIM. CONTROL
DOCUMENTATION
FABRICATION FIELD BIM
LOD & FEDERATED MODEL
11
Bentley Architecture Bentley Architecture Revit ArchitectureRevit Architecture
3D Civil3D CivilRevit StructureRevit StructureBentley StructuralBentley Structural
Revit MEP &Revit MEP &Bentley Mechanical Bentley Mechanical
Inventor Inventor SolidWorksSolidWorks
ProEProE
LOD and Origin
LOD Should Clearly Defined the X,Y,Z origin
Ikerd’s Ideas for Structural DesignDesign LOD
1. Avoid re-modeling
2. Clearly Define the local X,Y,Z Origin
3. Model Content Shown on Typical 1/8" Plan
4. Model Structure as it will be Constructed
5. Do Not Duplicate Model Content (A,S & M)
6. Use Shared Model for 2 Discipline content
Ikerd’s Ideas for Structural DesignDesign LOD
7. Don't Assume Construction Methods
8. Match BIM material w/ specifications
9. Engineers Open & Review their BIM
10. Not All Steel, Concrete is Structural
11. Train inside & out on Structural BIM LOD
AIA E202BIM Protocol Exhibit
AIA E202™–2008 LOD
100: Many items modeled. Masses & sq.ft.
200: Geometry is established but no object data
300: Engineered sizes of objects are established
350? Fully coordinated federated model?
400: Shop drawing & committed purchase price
500: As Built Model, complete.
16
Why Define a Structural BIM LOD of 350
There’s many a slip between
the cup and the lip
AIA E202™–2008 LOD Table
AIA E202™–2008 LOD TableCSI UniFormat for structures
Why use the CSI MasterFormat 2010 for Structural
STRUCTURAL TOPICS
•03 CONCRETE•04 MASONRY•05 METALS (STEEL)•06 WOOD•31 EARTHWORK•32 EXTERIOR IMPROVEMENTS
Structural LOD Levels
LOD LOD CONCEPT PHASE
TRADITIONSPHASE (TYP.)
100 Conceptualization Schematic Design200 Criteria design Design Development
300 Detailed Design Construction Documentation
350 Beyond Detail Design
Pre-Construction
400 Fabrication Detail Construction Administration
500 Facility Management Hand Over
100 200 300 350 400 500
STRUCTURALLEVEL OF DETAIL (LOD) MODEL
Structural LOD Model, Overview
Structural LOD Model, Overview
CONCRETE CAST-IN-PLACE
LOD 100 LOD 200 LOD 300
Structural LOD Table
Structural LOD w/ CSI MasterFormat
XX YY ZZ.##XX – DIVISION
YY & ZZ – SUB DEV.## User Defined
Structural LOD 100
STR. NARRATIVE
ARCH. LOD 100
+
=STR. LOD 100
Structural LOD 100 with Narrative Content
Sample Text in Narrative:One Story BuildingAnticipated Structure will be:
• 7-1/4" tilt wall• Wall height ~ 22 feet tall• Columns ~ HSS 8x8x1/4.• Top Of Steel at 17’ • Five foot parapet.• 5 ½” Slab On Grade • 4’ moisture improved sub-grade • 0,0 BIM Origin at S-W panel face• Finish Floor at 100’ STR. LOD 100
ARCH. BIMLOD 100
Structural LOD 100 with Model & Narrative
Structural LOD 200: Basement Wall Example
LOD 200
Structural LOD 300: Basement Wall Example
LOD 300
TILT WALL EXAMPLE & ELEMENTS
• WALL ELEMENTS• PIER LOCATIONS• TOP OF WALL & OPENINGS• BASE OF WALL• WALL THICKNESS• JOINTS ARE INDICATED ON
PLAN (2D LINES)• WALL JOINTS ARE MODELED• JOIST CONNECTIONS BARRING
& EDGE ANGLE & EMBEDS• PANEL ROUGH OPENINGS• ERECTION BRACES
TILT WALL LOD Example
300 LOD STRUCTURAL BIM
300 LOD STRUCTURAL BIM withLINKED SHARED 300 LOD TILT WALL BIM
300 LOD SHARED TILT WALL BIM
300 LOD ARCHITECTURAL BIM
300 LOD ARCHITECTURAL BIM
300 LOD ARCHITECTURAL BIM w/300 LOD SHARED TILT-WALL MODEL
300 LOD ARCHITECTURAL BIM
300 LOD STRUCTURAL BIM
STRUCTURAL LOD 300: 2D Typical Details STRUCTURAL LOD 350+: 3D modeled Content
STRUCTURAL LOD 300: 2D Typical Details STRUCTURAL LOD 350+: 3D modeled Content
300 LOD STRUCTURAL BIM Plan View
350 LOD Example “Panel Book” BIM
Structural Concrete LOD
350 LOD RFI’S CONCRETE CAST-IN-PLACE
LOD 350 and 400
STRUCTURAL LOD 300: 2D Typical Details STRUCTURAL LOD 350+: 3D modeled Content
350 LOD EXAMPLE: “BIM” TYP. DETAIL
350 LOD EXAMPLE: “BIM” TYP. DETAIL?
STRUCTURAL LOD 300: 2D Typical Details STRUCTURAL LOD 350+: 3D modeled Content
STRUCTURAL LOD 300: 2D Typical Details STRUCTURAL LOD 350+: 3D modeled Content
350 Architecturally Modeled Masonry Steel Content
•WHEN MODELED, THESE SHOULD BE CREATED IN THE ARCHITECT MODEL
•SIZES COORDINATED WITH THE STRUCTURAL ENGINEER WITH SCHEDULE SHOWN IN THEIR DOCUMENTS.
350 Architecturally Modeled Stair Steel Content
•WHEN MODELED, THESE SHOULD BE CREATED IN THE ARCHITECT MODEL
350 Architecturally Modeled Steel for Folding Partitions
STRUCTURAL LOD 300: 2D Typical Details LOD 350+: 3D modeled Content
Steel Joist and Deck Example
BRIDGING EXTENSIONS STEEL HEADERS
DECK
PRECISION? vs. ACCURACY?
59
LOD 300 GENERIC BIM MODEL
MANUFACTURES 2D MODEL
LOD 350 CUSTOM MODEL
60
PRECISION? vs. ACCURACY?
LOD 300: BRIDGING MODELED? W/ 2D Details LOD 350+: 3D modeled Content
Bridging should be modeled at LOD 300
Connections are modeled at 350+
Open Web Steel Joist Framing
Open Web Steel Joist Framing• System Definition• Sloping members • Connection Seats & Embeds • Bridging, Headers & Braces • Top & Bottom Chord Extensions
Buckling Restrained Braces:Star Seismic Example
LOD 200
LOD 300 LOD 400
http://www.starseismic.net/products.html
http://www.starseismic.net
LOD 350Ikerd Structural LOD ModelIkerd Structural LOD Model
Ikerd Structural LOD Model
350 LOD Grade Beam Content
300 LOD Foundation
RETAINING WALL EXAMPLE
LOD 300 LOD 350
Other Disciplines Must Have Comparable LOD !
• ARCHITECTURAL • CIVIL• MECHANICAL • ELECTRICAL • PLUMBING• FIRE
CONTACT
WILL IKERD, PEe: [email protected]
PLEASE SEND COMPLIMENTS TO:AUTODESK, Class SE333-1
By Filling Out the Survey
SEND CRITIQUES
Autodesk [and other] are registered trademarks or trademarks of Autodesk, Inc., and/or its subsidiaries and/or affiliates in the USA and/or other countries. All other brand names, product names, or trademarks belong to their respective holders. Autodesk reserves the right to alter product and services offerings, and specifications and pricing at any time without notice, and is not responsible for typographical or graphical errors that may appear in this document. © 2010 Autodesk, Inc. All rights reserved.
Will Ikerd, PEe: [email protected]
Brenda Herrera Ikerde: [email protected]
Please Fill Outthe Survey
AU Class SE333-1