from bim to brim: plus, minus, delta...2014/01/11 · track uk hmg government bim mandate ramp-up...
TRANSCRIPT
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Local Failure
From BIM to BrIM:
Plus, Minus, Delta
S. S. Chen, Ph.D., P.E.
UB Bridge Information Modeling Research Group H. Hu, P.E., Ph.D. Candidate
N. Ali, Ph.D. Candidate
R. Srikonda, P.E., MSCE, M.S. Candidate in CSE
with
A. M. Shirole’, P.E., M.S., MBA, S & A Shirole’ Inc.
Department of Civil, Structural and Environmental Engineering
University at Buffalo
NIBS/TRB Workshop January 2014
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Vision: Bridge Delivery that is • better, • faster, & • more economical based on public-domain software-neutral integrated parametric data modeling protocols that could be used to automate bridge information exchange through the lifecycle by facilitating communication (interoperability) among various stakeholders in the still-all-too-fragmented bridge industry
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ROI in Bridge – Related Industries
Benefits:
• Tangible Benefits: Faster project delivery cost savings
• Intangible Benefits: Process and work-flow re-engineering supply-chain integration risk management and claims mitigation
• Quasi-tangible Benefits: Improved data availability complete audit trail reduced data entry and improved information management reduced rework improved timely design and construction decision making improved quality of construction
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BIM Appeal (& Limitations) for BrIM
• Benefits
• Steel √, Concrete √
• But bridges are not buildings (e.g.):
• Architect(ure) Travelway
• Vertical Horizontal
• Commercial etc Heavy Const’n
• Etc
• Related schemas…
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Overview of Data Schemas
Overview of Data Schemas: Bridge
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Overview of Data Schemas, cont’d
Overview of Data Schemas: Transportation
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Overview of Data Schemas, cont’d
Overview of Data Schemas: Building
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Overview of Data Schemas, cont’d
Overview of Data Schemas: Geospatial
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Overview of Data Schemas, cont’d
Overview of Data Schemas: Geotechnical
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Overview of Data Schemas, cont’d
Overview of Data Schemas: Safety
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Overview of Data Schemas, cont’d
Overview of Data Schemas: Other
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Comparison of Bridge Project Delivery Procedures (e.g.)
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IDM/MVD Methodologies (e.g. PCI’s)
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Selected Development in Related Fields
Varying Degrees of mutual interest (!) • Infrastructure (e.g., IFC-Infra, buildingSMART) ∩ Geospatial (e.g., OGS)
• Steel structures (e.g., AISC, FIATECH & ISO 15926)
• Concrete structures (e.g., ACI for cast-in-place, PCI for precast/prestressed, PTI for post-tensioned, nuclear for their audit trail requirements)
• Geotech (e.g., gINT, DIGGS)
• AASHTO (e.g., TCEED, transXML/NCHRP 20-94, NCHRP 20-83(03), etc)
• Manufacturing (e.g., NIST initiatives, etc)
• Electric Power Plants (e.g., EPRI, etc)
• Emerging Technology Law (e.g., AIA and ConsensusDocs BIM Addenda 2008 NCHRP2013)
• Application software consortia (existing or perhaps yet to be constituted)
• buildingSMART for IFC (Palzar & Turk 2008) based exchange standards
• other existing and emerging exchange standards (e.g., COBie, SPie, BIMSie, BPie, ELie, LCie, QTie, WALLie, etc)
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ACI CIP Process Map (portion)
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AISC Process Map (portion)
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Comparison of Bridge Project Delivery Procedures (cont’d, e.g.)
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Vision & Bridge Lifecycle (Enterprise) Process Map
Process Map — Streamlined and Improved IT- enabled Managing Method
Portion of Bridge Enterprise Process Map (Chen et al. 2013)
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For Bridges: Process Map Notation Project Disciplines: • Detailing
• Estimating
• Construction Management
• Fabrication
• Construction Engineering
• Inspection
• Load Rating
• Routing and Permitting
• Maintenance and Management
……
Project stages: • Bidding and
Letting
• Post-Award/Preconstruction Planning/ Detailing
• Fabrication
• Construction
• Inspection and Evaluation
• Maintenance and Management
• Management
……
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Process Map Notation, cont’d
Activity Descriptions
Activity Description
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Process Map Notation, cont’d
Exchange Model and Data Dictionary
Exchange Model Description
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Process Map Notation, cont’d
Non-model Exchange Descriptions
Non-model Exchange Description
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Use Case Descriptions (e.g.)
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Roadway Use Case
Coordinate Systems Supported by Building-Oriented Data Models [1-3] • Cartesian Coordinate Systems • Polar Coordinate Systems • Cylindrical Coordinate Systems • Spherical Coordinate Systems
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Roadway Use Case, cont’d
Complex Curves involved in Roadway Alignment • Clothoid • Spiral • Parabola
Major shortcomings of using building-oriented data models for bridges • Accumulate
error • Compromise the
relationship between bridge and roadway
Straight line
Spiral
Circular curve
[4]
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Use Case – Roadway Design
Data Exchange Schemas for Describing Roadway Geometry
• LandXML [6]
• IFC-Bridge proposed by OpenInfra [7]
• Alignment Models proposed by T. Liebich, et al. [8] & Amann et al.
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Use Case – Roadway Design
Description of Roadway Alignment
Elements of Horizontal Alignment: • Straight line • Transition curve • Circular curve
Proposed OpenBrIM XML Schema
XML Instance Representation
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Use Case – Roadway Design
Description of Roadway Alignment
Elements of Vertical Profile: • Straight line • Symmetric parabolic curve • Asymmetric parabolic curve • Circular curve
Proposed OpenBrIM XML Schema
XML Instance Representation
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Use Case – Roadway Design
Description of Roadway Alignment
Elements of Cross Section: • Width • Side slope • Location of HCL/TGL
Proposed OpenBrIM XML Schema
XML Instance Representation
5.557 m
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Use Case – Roadway Design
Comparison of Roadway Geometry Models
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The Technical Part: Data Exchange Standard Development
Phase 1:
Program
Phase 2:
Design
Phase 3:
Construct
Phase 4:
Validate
Process Map
Exchange Requirements
Information Delivery Manual
ER Models
Generic Model View Definitions
Gap Analysis
Data Model Schema
Validation
Evaluation
UB BrIM Research Group Principal Focus
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Plan View – I-290 Ramp B over I-190
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3D View – Bridge Deck
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3D View – Steel Plate Girders
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3D View – Concrete Haunches
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3D View – Concrete Haunches
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3D View – Steel Cross Frames
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3D View – Steel Cross Frames
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3D View – Bearing Stiffener
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3D View – Bearing Stiffener
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3D View – Chevron Cross Frame
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3D View – V Cross Frame
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3D View – X Cross Frame
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3D View – Shear Stud
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3D View – Shear Stud
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3D View – Concrete Pier
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3D View – Concrete Pier with Steel Piles
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3D View – Steel Piles
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3D View – Bridge
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3D View – Bridge
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3D View – Bridge
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3D View – Bridge
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3D View – Bridge
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Viewer/Modeler Demo’s…
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Concrete Bridge Example Case Study:
Quincy Ave. Bridge, CO (BT72)
Plan View of Quincy Avenue over I-25 and LRT
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Quincy Ave. Bridge (BT72)
Section View of Quincy Avenue over I-25 and LRT
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Quincy Ave. Bridge (BT72)
Roadway Geometry Definition using XML Code can capture Horizontal & Vertical profile
Roadway Alignment shown in OpenBrIM Viewer
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Quincy Ave. Bridge (BT72)
UB BrIM XML code for BT72
BT72 Girders Modeled in OpenBrIM Viewer
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Quincy Ave. Bridge (BT72)
UB BrIM XML code for Deck Definition
Deck Modeled in OpenBrIM Viewer
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Quincy Ave. Bridge (BT72)
UB BrIM XML code for Multi-Column Pier Bent Multi-Column Pier Bent and Integral Abutment Modeled in OpenBrIM Viewer
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Quincy Ave. Bridge (BT72)
UB BrIM XML code for Strands and Reinforcement Strands, Longitudinal and Transverse reinforcement
Modeled in OpenBrIM Viewer
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Quincy Ave. Bridge (BT72)
Strands, Longitudinal and Transverse reinforcement Modeled in OpenBrIM Viewer
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Quincy Ave. Bridge (BT72)
Strands, Longitudinal and Transverse reinforcement Modeled in OpenBrIM Viewer
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Glenridge Road Bridge
Strands, Longitudinal and Transverse Reinforcement Modeled in OpenBrIM Viewer
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Glenridge Road Bridge
Complete Model of the Bridge with Deck and Abutments
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Spliced Girders with Post-Tensioning Ducts
Post-Tensioning Ducts shown as blue
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Spliced Girders with Post-Tensioning Ducts
Individual Beams shown before splicing
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Spliced Girders with Post-Tensioning Ducts
Close up of beam (transparent) and the Post-Tensioning ducts inside it
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Rebar Bend Rendering in OpenBrIM Viewer
CRSI Rebar Bend Type - 1
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Schema Object Template for CRSI Type – 1 Rebar Bend
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Rebar Bend Rendering in OpenBrIM Viewer
CRSI Rebar Bend Type - T 1
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3D View – Multi-column Pier
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Modeled separately for independent check on XML data – tagging
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Related: ACI (Sept. 2013) Overview
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Related: ACI cont’d (Sept. 2013)
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Implementation Roadmap Overview
Approach Recommended:
Roberts Leadership and
Management Model
A range of recent and emerging state-of-art technologies have the potential to
transform the efficiency, effectiveness, reliability, cost-effective life cycle
management of the bridge asset network in coming decades. The proposed roadmap
outlines how to “get there from here.”
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Implementation Roadmap Examples of Roberts Model Elements
Roberts Model
Element Example
Vision
As a result of BrIM-standards based interoperability being implemented, owners dealing with construction
claims could quickly access the searchable electronic “audit trail” that is a byproduct of BrIM – enabled
processes to quickly assess the merits of claims just as easily as a contractor with suitable access to model
data can interrogate it instead of issuing RFI’s.
Authorizing
Environment
Increasing interconnectedness of pieces of the workflow is increasingly realized by software translators, and
the integrative Vision embraced by various stakeholders (owners, designers, contractors, etc.) in the bridge
lifecycle in a given owner’s jurisdiction
Organizational
Capacity
In an owning agency organization and the consulting firms serving them, long standing animosities between
previously separated highway design and bridge design squads reduce over time; re-tooling of CAD
technicians and bridge engineers to productively use 3D modeling tools, possibly partially subsidized using
MAP-21 funds incentivizing deployment of ABC technologies.
Working Space
Progressive CEO’s and managers clearly understand and champion the vision throughout the organization in
an energetic and sustained manner to facilitate the migration from initially non-interoperating software
operated by a not-fully-IT-savvy workforce to collaboratively influence that agency’s next-gen CAD standards
and associated workflows to implement Task 12 – generated data exchange standards (or suitable
derivative(s) thereof)
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Implementation Roadmap
Shorter-Term (first 18 months)
• Various educational briefings and targeted stakeholder engagement should be mobilized for schema vetting and periodic (web)meetings
• Identify principal legal issues and add-ons in “BIM Addendums” to standard construction contracts in related fields and adapt them as appropriate to Highway and Heavy Construction Contracts
• D/B
• D/B/B
• CMGC
• etc
• Test-drive emerging openBrIM standards on suitable demo projects; incorporate revisions to these standards based on lessons learned.
• Identify options and preferred standards-issuing shepherding mechanisms (& associated advocacy strategies) (& pro’s and con’s)
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Implementation Roadmap
Intermediate-Term (18 months – 5 years)
• Standards emerging for a bridge structure, for example, will need to be mapped from “plain English” (or “stylized English”) that a bridge engineer would use, to the (IFC or XML or ISM) Model View Definition (MVD) that a software implementer would use.
• Disincentives to address/overcome include the following:
Designer reluctance to share models, which is “for good reasons” “reasonable man” legal reasoning (works against early adopters) Insufficient institutional memory (e.g., where did that (archaic) spec come
from?)
• Bottom-Up processes to consider include the following:
Develop model guidelines for training/retooling rank & file staff
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Implementation Roadmap
Intermediate-Term (18 months – 5 years)
• Top-Down processes to consider include the following:
Track UK HMG government BIM mandate ramp-up & deployment experiences in forcing BIM-enabled processes into the mainstream of construction project delivery; best practices, pitfalls to avoid, etc.
Add-on to (or modified!?) NBI reporting requirements along with element-level reporting already required by statute (MAP-21)
Exploit MAP-21 provisions encouraging the submission of digital data documenting federal-aid construction projects
Promulgate Model version & Guidelines for tweaking Owner-specified exchange standards (think next-gen CAD standards) and “as built” (or “as constructed”)
• Influence and exploit MAP-21 extensions
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Implementation Roadmap
Longer-Term (5+ years)
• Recognizing and identifying overlapping interests, both nationally and internationally, and forging targeted collaborative efforts without undue bureaucracy to leverage resources and consolidate/refine evolving/maturing EM (Exchange Model) descriptions and associated MVD mappings.
• Transform transportation infrastructure owning agencies around their integrated stewardship of lifecycle asset data management down to the nuts and bolts.
• Moving forward to "maintenance mode" (and associated shepherding mechanism) for the BrIM data exchange standards .
• Assemble and publicize (e.g., 1-PDH webinars) periodic syntheses of successful case studies (including IPD), lessons learned from early adopters, and emerging best practices.
• Proactively influence BIM/BrIM related committees with partially overlapping interests to ensure that bridge data of interest is included in the broader efforts to define and implement data exchange standards for the constructed infrastructure.
• Utilize and influence emerging & evolving BIM certification mechanisms.
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Short Term (ST), IT, LT in the Roberts Model
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Technological + Organizational Considerations
Principal Assumptions:
• Technological
A neutral format (e.g., IFC, XML)
Software solution providers continue supporting integrative technologies
Data quality specifications
• Organizational
Most existing institutions and organizations continue providing framework for the organizational capacity and authorizing environment needed to implement the integrated process vision.
ROI (documentation of quantified benefits and emerging “best practices”, including in related fields).
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Summary, Conclusion and Recommendation
1. Current data schemas used by building industry cannot be directly borrowed and used for bridge projects.
2. A bridge-oriented data schema based on roadway alignment is necessary. 3. The schema was developed under the guidance of the Process Map, which
reflects use cases of bridge project. 4. The schema is able to support parametric modeling, which can reflect the
design intent. 5. Domain Dictionaries!? 6. Alignment and Steel and Concrete Schema Developments 7. Adapted Roberts Model recommended for Implementation Status: draft reports under review Ongoing Synergies Recommended: • buildingSMART International • AASHTO/NSBA • ACI
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Acknowledgements
1. Federal Highway Administration (B. Kozy, COTR) through ATLSS 2. Association for Bridge Construction and Design 3. New York State Department of Transportation & other DOTs 4. Bentley Systems, Red Eqn Corp., and other Bridge and other Software
Solution Providers 5. University at Buffalo, Istanbul Technical University, and University of
Engineering and Technology 6. Others on UBrIM team: I.-S. Ahn, S. G. Karaman, Y. Ji, A. Nilsen 7. A. Koc 8. AASHTO/NSBA Collaboration 9. Other Collaborations (e.g., bSI, ACI BIM, etc.) 10. Etc.