A Cloud-based BIM Platform for Information Collaboration

Dr. Ling Ma

Assoc. Prof. Rafael Sacks

BIM in a Project's Lifecycle

Information Interoperability

MATTI HANNUS,1998

Information Interoperability - IFC

IFC Schema and File

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.);

IFC Schema and File

Information Collaboration in the Cloud

Create

Retrieve

Update

Delete

Semantic Enrichment

The Root of Object Identification

Feature Matching

	Longitudinal	Transverse	Vertical	Convex	...
Primary Girder	1	-1	-1	-1
Transverse Beam	-1	1	-1	1
...				0

Transverse beam & Abutment

Matching Result

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

Demo

Conclusion

Information is the core of building information model
CRUD is the common use case of information collaboration
Semantic enrichment is an important process for BIM adoption

Machine learning for more complex cases

Tested on synthetic cases

Thanks!

SeeBridge Information Delivery Manual (IDM) for Next Generation Bridge Inspection

Rafael Sacks, Amir Kedar, André Borrmann, Ling Ma, Dominic Singer and Uri Kattel

Conditions of the Highway Bridges

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

Bridge Inspection - Current Practice

14,700 bridges in Georgia

42 Inspectors in GDOT

Descriptive Inspection Report

AASHTOWare Bridge Management System (BMS)

Good?

Satisfactory?

Desirable?

Bridge Risk Prediction

Bridge Management System

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

Workflow Overview

Information Delivery Manual

Business Process Model and Notation

National BIM Standard-United States (2015)

Model View Definition

Map the bridge element types to the IFC4 entity types

Defines the information exchange requirement

...

Model View Definition

MVDxml for model checking

...

To what extent the model is satisfactory

Georgia (3)

Data Collection

Cambridge (10)

Haifa (1)

Data Collection

Videogrammetry

(GoPro4 black)

Mobile laser scanning

(Trimble MX7)

Terrestrial laser scanning

(Leica c10)

3D Reconstruction

Semantic Enrichment

Damage Detection

Conclusion

Information delivery manual
- Frame System Components
- Layout the workflow
- Define the information exchange model
- Source of MVD
System integration