Ling Ma (Lorin)
Lecturer at the University of Huddersfield.
A Cloud-based BIM Platform for Information Collaboration
Dr. Ling Ma
Assoc. Prof. Rafael Sacks
© 2016, Dr. Ling Ma
MATTI HANNUS,1998
© 2016, Dr. Ling Ma
© 2016, Dr. Ling Ma
ENTITY IfcAxis2Placement3D
SUBTYPE OF (IfcPlacement);
Axis : OPTIONAL IfcDirection;
RefDirection : OPTIONAL IfcDirection;
...
END_ENTITY;
#1001= IFCAXIS2PLACEMENT3D(#901,#902,#903);
DATA; #1= IFCAPPLICATION(#2,'1.0.0.0','ggRhinoIFC - Geometry Gym Plug-in for Rhino3d','ggRhinoIFC'); #2= IFCORGANIZATION($,'Geometry Gym Pty Ltd',$,$,$); #3= IFCPERSONANDORGANIZATION(#4,#5,$); #4= IFCPERSON('Jon','Jon',$,$,$,$,$,$); #5= IFCORGANIZATION($,'Geometry Gym Pty Ltd',$,$,$); #6= IFCOWNERHISTORY(#3,#1,$,.ADDED.,1418084875,$,$,1418084875); #7= IFCGEOMETRICREPRESENTATIONCONTEXT($,'Model',3,0.0001,#8,#10); #8= IFCAXIS2PLACEMENT3D(#9,$,$); #9= IFCCARTESIANPOINT((0.0,0.0,0.0)); #10= IFCDIRECTION((0.0,1.0)); #11= IFCGEOMETRICREPRESENTATIONSUBCONTEXT('Axis','Model',*,*,*,*,#7,$,.MODEL_VIEW.,$); #12= IFCGEOMETRICREPRESENTATIONSUBCONTEXT('Body','Model',*,*,*,*,#7,$,.MODEL_VIEW.,$); #13= IFCGEOMETRICREPRESENTATIONCONTEXT($,'Model',3,0.0001,#8,#14); #14= IFCDIRECTION((0.0,1.0)); #50= IFCBUILDING('0y81Ev6rvAUxlnuftcyvNq',$,'IfcBuilding',$,$,#51,$,$,.ELEMENT.,$,$,#57); #51= IFCLOCALPLACEMENT($,#52); #52= IFCAXIS2PLACEMENT3D(#53,$,$); #53= IFCCARTESIANPOINT((0.0,0.0,0.0)); #54= IFCRELCONTAINEDINSPATIALSTRUCTURE('16C2nttC9EMe6T5CFDJvvD',$,'Building','Building Container for Elements',(#210),#50); #57= IFCPOSTALADDRESS($,$,$,$,$,$,$,'Unknown',$,$); #100= IFCPROJECT('3mKjRoX3jBMhIv_Zx1c4Bd',#6,'IfcProject',$,$,'IfcProject','',(#13),#101); #101= IFCUNITASSIGNMENT((#102,#103,#104)); #102= IFCSIUNIT(*,.LENGTHUNIT.,.MILLI.,.METRE.); #103= IFCSIUNIT(*,.PLANEANGLEUNIT.,$,.RADIAN.); #104= IFCSIUNIT(*,.TIMEUNIT.,$,.SECOND.);
© 2016, Dr. Ling Ma
© 2016, Dr. Ling Ma
© 2016, Ling Ma
Create
Retrieve
Update
Delete
Semantic Enrichment
© 2016, Dr. Ling Ma
The Root of Object Identification
© 2016, Dr. Ling Ma
Feature Matching
© 2016, Dr. Ling Ma
Longitudinal | Transverse | Vertical | Convex | ... | |
Primary Girder | 1 | -1 | -1 | -1 | |
Transverse Beam | -1 | 1 | -1 | 1 | |
... | 0 |
Transverse beam & Abutment
© 2016, Ling Ma
O1 | E1 | E3 | E2 |
O2 | E2 | E1 | E2 |
O3 | E2 | E1 | E3 |
O4 | E2 | E1 | E3 |
O5 | E1 | E3 | E2 |
1st Candidate | 2nd Candidate | 3rd Candidate |
© 2016, Ling Ma
Conclusion
© 2016, Dr. Ling Ma
Machine learning for more complex cases
Tested on synthetic cases
© 2016, Ling Ma
Thanks!
SeeBridge Information Delivery Manual (IDM) for Next Generation Bridge Inspection
Rafael Sacks, Amir Kedar, André Borrmann, Ling Ma, Dominic Singer and Uri Kattel
© 2016, Dr. Ling Ma
One in nine of the bridges in the US are structurally deficient
FHWA needs $20.5 billion annually to eliminate the bridge deficient backlog by 2028, but $12.8 billion is being spent
Numbers from 2013 ASCE report card for America's infrastructure
607,380 National Bridges in the US !!!
Over two billion trips are taken daily across these bridges
© 2016, Dr. Ling Ma
14,700 bridges in Georgia
42 Inspectors in GDOT
Descriptive Inspection Report
AASHTOWare Bridge Management System (BMS)
Good? |
Satisfactory? |
Desirable? |
Bridge Risk Prediction
© 2016, Dr. Ling Ma
3D Semantically rich bridge model (Bridge Information Model)
+
=
McGuire, B., et al., (2016) Bridge Information Modeling for Inspection and Evaluation. Journal of Bridge Engineering
Average age: 42 years
Numbers from 2013 ASCE report card for America's infrastructure
Time consuming
Consortium
Technion – Israel Institute of Technology
University of Cambridge
Technische Universität München
Georgia Institute of Technology
Georgia DOT
Trimble Navigation Inc.
Kedmor Engineers Ltd.
Pointivo
Transport for London
Netivei Israel
German Federal Ministry for Transportation
Infravation - SeeBridge
FP7 ERA-NET projects
Oct 1st, 2015 ~ Mar 31st, 2017
© 2016, Dr. Ling Ma
Workflow Overview
© 2016, Dr. Ling Ma
Information Delivery Manual
© 2016, Dr. Ling Ma
Business Process Model and Notation
National BIM Standard-United States (2015)
Model View Definition
© 2016, Dr. Ling Ma
Map the bridge element types to the IFC4 entity types
Defines the information exchange requirement
...
...
Model View Definition
© 2016, Dr. Ling Ma
MVDxml for model checking
...
To what extent the model is satisfactory
© 2016, Dr. Ling Ma
Georgia (3)
Data Collection
Cambridge (10)
Haifa (1)
© 2016, Dr. Ling Ma
Data Collection
Videogrammetry
(GoPro4 black)
Mobile laser scanning
(Trimble MX7)
Terrestrial laser scanning
(Leica c10)
3D Reconstruction
© 2016, Dr. Ling Ma
Semantic Enrichment
© 2016, Dr. Ling Ma
Damage Detection
© 2016, Dr. Ling Ma
Conclusion
© 2016, Dr. Ling Ma
© 2016, Dr. Ling Ma
By Ling Ma (Lorin)
Research Sharing - Ling Ma