Level 2 BIM On Trial – Steve Lockley

Level 2 BIM On Trial

Trial Outcomes

Professor Steve Lockley

BIM Academy at Northumbria University

Level 2 BIM On Trial – Steve Lockley

Trial Participation

Engagement

All Tier 1 contractors

• 9 Registered

• 5 Partially Completed

• 3 Fully Completed

Technology Providers

• 9 Registered

• 8 Fully completed

Reasons

Trial Timing

vs

Real world demands

Lessons Learnt

vs

Value of further work

Level 2 BIM On Trial – Steve Lockley

Participant Platform Choice P1 P2 P3 P4 P5 P6 P7 P8

BIM 1 Arch

BIM 2 MEP

BIM 3 Gen

BIM 4 Arch

BIM 5 MEP

BIM 6 Struct

BIM 7 Struct

BIM 8 Arch

Collaborative Data Environment Model checking, viewing and co-ordination tools

Level 2 BIM On Trial – Steve Lockley

Federation – De-federation

Fabric

Structure Lighting Water

SVP

Power Fire Alarm Mech. Vent

Level 2 BIM On Trial – Steve Lockley

Federation Outcomes

37%

63%

IFC BIM

50% 50%

Native BIM

Success Fail Common points of failure

“Inconsistent or, uncontrolled use of,

Global Coordinate Systems in native BIM tools”

“BIM x to BIM y incompatibilities constrain native BIM federation”

“Designing and implementing federation

retrospectively is expensive”

Level 2 BIM On Trial – Steve Lockley

COBie generation

• The majority (75%) of the participants that succeeded in federating the models produced a COBie output

• All COBie outputs were generated from IFC files

Level 2 BIM On Trial – Steve Lockley

COBie analysis

Assessment C1 C2 C3 C4 C5 C6 C7

Floors per Facility 1 4 9 9 4 4 11

Spaces per Floor 21 13 6 6 14 14 5

Spaces per Zone 4 11 19 19 11 6 11

Components per Type 4 5 1 9 6 9 13

Components per Space 18 4 5 19 3 42 73

Components per System 187 0 295 1045 0 39 3868

Attributes per Object 21 11 15 38 0 1 0

Level 2 BIM On Trial – Steve Lockley

Assessed minutes to resolve?

C1 C2 C3 C4 C5 C6 C7

Broken relationship 5

(20)

5

(46)

5

(421)

5

(3)

5

(4239)

Duplicated names 19 11 46 4 8

Missing Data 13 18 86 16 12 21 5

Total 13 42 102 68 12 30 18

Level 2 BIM On Trial – Steve Lockley

Quality Assessment

Sheet Assessment C1 C2 C3 C4 C5 C6 C7

Contact Number One Several None One Many Some

Facility Classification UC1 None UC2 UC1 UC2 None

Floor Occupied

floors Most All Half All Half

Space Classification UC2 None UC2

Type Classification UC2 UC1 None Some UC1 UC2

Component Spatially

indexed Most Some All None Some

System Number All None One None All One

Attribute Useful Some No Some No

Level 2 BIM On Trial – Steve Lockley

Participant feedback - Verbal

• Inability to understand the COBie sheet and the exact data required to populate it.

• Hard to get the correct data into the IFC file from the BIM tool in order to create a correct COBie file

• Too much time required correcting the COBie data when it fails validation

Level 2 BIM On Trial – Steve Lockley

COBie creation technology issues

• COBie schema interpretation – minor

• Inconsistent object type filtering – support level

• IFC object to COBie mapping – interpretation

• Inadequate support for Classification - novelty • Highly software vendor related

Level 2 BIM On Trial – Steve Lockley

COBie user errors

• Values not correctly selected from pick lists

– Contact name not on the contact page

• Incorrect Pick Lists (wrong Uniclass table)

– UniClass 1 not Uniclass 2 or OmniFormat

• Data values missing that are required

– A contact’s e-mail address

• Inconsistent object type filtering

– Columns not required but included

Level 2 BIM On Trial – Steve Lockley

COBie user errors

• Volumes / Spaces badly/inconsistently defined

– Education/discipline

• File naming conventions ignored/misunderstood

– CDE usage improvements

• Classification

– UniClass2 needs completion

Level 2 BIM On Trial – Steve Lockley

COBie is well understood

Strongly Agree 12%

Agree 50% Not Sure

12%

Diagree 13%

Strongly Disagree

13%

Level 2 BIM On Trial – Steve Lockley

COBie is easy to produce

Agree 12%

Diagree 63%

Strongly Disagree

25%

Level 2 BIM On Trial – Steve Lockley

COBie delivery requires trained specialist staff

Strongly Agree 25%

Agree 62%

Not Sure 13%

Level 2 BIM On Trial – Steve Lockley

COBie will be implemented in your organisation by 2016

Strongly Agree 12%

Agree 25%

Not Sure 38%

Diagree 25%

Level 2 BIM On Trial – Steve Lockley

Value of COBie

Agree 75%

Not Sure 25%

Strongly Agree 12%

Agree 63%

Not Sure 25%

Agree 75%

Not Sure 25%

COBie will improve internal processes COBie will improve handover documentation

COBie will be valuable to client

Level 2 BIM On Trial – Steve Lockley

Conclusions

• People – Education, practice and documentation - Required

• Process – Design Management, EIR, internal procedures - Required – CDE and federation strategy – At project kick-off – Classification - UniClass 2 completion

• Technical – Information Management - Enforcement – Compliance checking - Feasible – Digital Plan of Work - Needed – COBie button – IFC to COBie almost there