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FROM BUILDING TO URBAN FABRIC:
MORE THAN JUST ZOOMING OUT
Prof. Pieter Pauwels, Ghent University, Dept. Of Architecture and Urban Planning
FLAGIS GEO + BIM EVENT
11 DECEMBER 2018
OUTLINE
1. BIM – Infra – GIS
2. Linking the data
3. BuildingSMART linking: ifcOWL
4. A full LOD cloud?
5. W3C linking: Linked Building Data
6. Recent implementations and demonstrators
2
BIM – INFRA – GIS
3
GIS – INFRA – BIM
http://rym.fi/
http://www.tekla.com/global-bim-awards-2014/winners.html
THE BUILDING LIFE-CYCLE
ONE VIEW: GIS – INFRA – BIM
http://www.egeomate.com/understanding-the-bim-concept-from-the-bentley-systems-perspective/
THE MODEL
“A model represents reality
for the given purpose; the
model is an abstraction of
reality in the sense that it
cannot represent all aspects
of reality.”
7
Jeff Rothenberg "AI, Simulation and Modeling" 1989. presentation by Arto Kiviniemi (2014):
http://iug.buildingsmart.org/resources/London/BIM-
GIS%20intergration/bim-gis
HOW TO INTEGRATE ALL THIS?
8
J. Beetz (2014). BIM en GIS interoperabiliteit.
http://www.slideshare.net/JakobBeetz/gis-bim-interoperabiliteit-stumico-presentatie-april-2014/16
3 KEY DIFFICULTIES FOR FULL INTEGRATION
1. Kernel
2. Content
3. Level of detail
Nagel Claus, Stadler Alexandra,. Kolbe Thomas H (2009).
Conceptual requirements for the automatic reconstruction of building information models from uninterpreted 3d models.
FROM SCOPE TO SCOPE
10
GIS
BIM
INFRA
NIBS (Alan Edgar), Introduction to National BIM Standard Version 1 Part 1 – Overview, Principles, & Methodologies, 2007
http://web.stanford.edu/group/narratives/classes/08-09/CEE215/ReferenceLibrary/National%20BIM%20Standard%20(NBIM)/intro_bim_v1.pdf
NEED TO LINK THE PARTS OF THE ELEPHANT
11
mapping
conversion
translation
presentation by Arto Kiviniemi (2014): http://iug.buildingsmart.org/resources/London/BIM-GIS%20intergration/bim-gis
LINKING THE DATA
13
5 STAR OPEN DATA
14https://5stardata.info/en/
Tim Berners-Lee, the inventor of the Web and Linked Data
initiator, suggested a 5-star deployment scheme for Open Data:
* make your stuff available on the Web (whatever format)
under an open license
** make it available as structured data (e.g., Excel instead of
image scan of a table)
*** make it available in a non-proprietary open format (e.g.,
CSV instead of Excel)
**** use URIs to denote things, so that people can point at
your stuff
***** link your data to other data to provide context
LOD BASED ON GRAPHS
15
URI
URI
URI
URI
URI
URI
URI
URI
URI
URI
URI
LINKED OPEN DATA (LOD)
16
• distributed / decentralised
information management
• interactive information search and
reasoning over the web
• sharing partial data
http://tomheath.com/blog/2009/03/linked-data-web-of-data-semantic-web-wtf/
LOD CLOUD GROUPED PER DOMAIN
17https://lod-cloud.net/
BRING BIM IN THE LOD CLOUD
18https://lod-cloud.net/
BIM
COMMUNITY EFFORTS!
19
W3C LBD
Community Group
BuildingSMART
LDWG
linkedbuildingdata.net
www.w3.org/community/lbd/
ifcOWL
linkedbuildingdata people
LDAC event
http://w3.org/community/lbd/
BUILDINGSMART
LINKING
20
BUILDINGSMART INTO THE CLOUD?
21http://www.buildingsmart.org/standards/technical-vision/technical-roadmaps/
Jakob Beetz, TU Eindhoven
IFC
INFRA
SENSOR
GIS
VERSIONS OF IFC
23Pieter Pauwels, Walter Terkaj. EXPRESS to OWL for construction industry: Towards a recommendable
and usable ifcOWL ontology. Automation in Construction 63 (2016) 100-133.
IFCOWL ONTOLOGIES AVAILABLE
24
Ifc2x_all_lf.exp
IFC2X2_ADD1.exp
IFC2X2_FINAL.exp
IFC2X2_PLATFORM.exp
IFC2X3_Final.exp
IFC2X3_TC1.exp
IFC4.exp
IFC4_ADD1.exp
not supported
not supported
not supported
not supported
IFC2X3_Final.owl / .ttl
IFC2X3_TC1.owl / .ttl
IFC4.owl / .ttl
IFC4_ADD1.owl / .ttl
http://buildingsmart-tech.org/ifcOWL/IFC4_ADD1
http://buildingsmart-tech.org/ifcOWL/IFC4
http://buildingsmart-tech.org/ifcOWL/IFC2X3_Final
http://buildingsmart-tech.org/ifcOWL/IFC2X3_TC1
EXAMPLE IFCOWL: PROJECT STRUCTURE
25Pieter Pauwels, Ana Roxin. SimpleBIM: From full ifcOWL graphs to simplified building graphs.
11th European Conference on Product and Process Modelling (ECPPM) 2016.
EXAMPLE IFCOWL: PROPERTY SETS
26
#6=IFCPROPERTYSINGLEVALUE('IsExternal',$,IFCBOOLEAN(.T.),$);
#4=IFCPROPERTYSET('2pW3mRfBr7EwHldYmKP$PD',#33,'Pset_WindowCommon',$,(#1,#6));
#2=IFCRELDEFINESBYPROPERTIES('2yVDnLFbzAzx6B70P6n3aU',#33,$,$,(#1),#4);
#1=IFCWINDOW('1BYB9o9k5FZAAI8V0ct4P4',#33,'BK_tower_window:BK_tower_window:BK_tower_windo
w:145729',$,'BK_tower_window',#90910,#90904,'145729',2200.000000000015,1200.000000000011);
Pieter Pauwels, Ana Roxin. SimpleBIM: From full ifcOWL graphs to simplified building graphs.
11th European Conference on Product and Process Modelling (ECPPM) 2016.
EXAMPLE IFCOWL: PROPERTY SETS
27Pieter Pauwels, Ana Roxin. SimpleBIM: From full ifcOWL graphs to simplified building graphs.
11th European Conference on Product and Process Modelling (ECPPM) 2016.
A FULL LOD CLOUD?
28
APPLY IDENTICAL RECIPE TO INFRA
29T. Liebich (2015), IFC Alignment, Presentation at BuildingSMART Standards Summit Singapore 2015.
USE EXISTING DATA IN THE GIS DOMAIN
30GeoSPARQL http://www.opengis.net/ont/geosparql#
LINKING GIS, INFRA, AND BIM
31
EXPRESS &
IFC/SPFF
BIM GISINFRA
EXPRESS &
IFC/SPFF
XML and RDF
LINKING GIS, INFRA, AND BIM
32
EXPRESS &
IFC/SPFF
BIM GISINFRA
EXPRESS &
IFC/SPFF
XML and RDF
ifcOWL &
ifcRDF
P. Pauwels & W. Terkaj. EXPRESS to OWL for construction industry:
Towards a recommendable and usable ifcOWL ontology. Automation in Construction 63, pp. 100-133.
LINKING GIS, INFRA, AND BIM
33
EXPRESS &
IFC/SPFF
BIM GISINFRA
EXPRESS &
IFC/SPFF
XML and RDF
ifcOWL &
ifcRDF
ifcOWL &
ifcRDF
P. Pauwels & W. Terkaj. EXPRESS to OWL for construction industry:
Towards a recommendable and usable ifcOWL ontology. Automation in Construction 63, pp. 100-133.
LINKING GIS, INFRA, AND BIM
34
EXPRESS &
IFC/SPFF
BIM GISINFRA
EXPRESS &
IFC/SPFF
XML and RDF
ifcOWL &
ifcRDF
ifcOWL &
ifcRDF
W3C LINKING: LINKED
BUILDING DATA
35
INDUSTRY FOUNDATION CLASSES (IFC)
36
There exists a standard, but:
▸ Not modular
▸ Not extensible
▸ Not simple enough
AND not web-compliant!
P. Pauwels, K. McGlinn, M. Lefrançois, M.H. Rasmussen, A. Roxin. The W3C Linked Building Data Community Group.
W3C Technical Plenary and Advisory Committee meetings week (TPAC) 2018.
37
started Dec. 2014
now 76 participants
W3C LBD COMMUNITY GROUP
http://w3.org/community/lbd/
LDAC 2015
LDAC 2014
LDAC 2012
http://www.linkedbuildingdata.net/ldac2018/
MISSION STATEMENT
39
Bring together experts in the area of Building Information Modeling (BIM) and Web
of Data technologies to:
1. define existing and future use cases and requirements for Linked Data based
applications across the life cycle of buildings.
2. discuss best practices for publishing building data on the Web
3. propose ontology models to describe:
▸ Buildings and building elements (topology, associate values to properties)
▸ Products and product properties
4. discuss how they can be used together with other specifications:
▸ existing standards (IFC, GeoSPARQL, Semantic Sensor Network, ...)
▸ separate initiatives (schema.org, Haystack, BRICK, ...)
http://w3.org/community/lbd/
KEY ONTOLOGIES
40
▸ Project Ontology
▸ Building Topology Ontology (BOT)
▸ Product Ontology (PRODUCT)
▸ Properties Ontology (PROPS)
https://github.com/w3c-lbd-cg/
BUILDING TOPOLOGY ONTOLOGY
41Image from Mads Holten Rasmussen.
BUILDING TOPOLOGY ONTOLOGY
42Image from Mads Holten Rasmussen.
TAXONOMIES OF PRODUCTS
43https://github.com/pipauwel/product
OVERALL LBD ONTOLOGY STRUCTURE
44
geo
Schema.org
GoodRelations
inst:Wall_X
rdf:typerdf:type
geom
P. Pauwels, K. McGlinn, M. Lefrançois, M.H. Rasmussen, A. Roxin. The W3C Linked Building Data Community Group.
W3C Technical Plenary and Advisory Committee meetings week (TPAC) 2018.
RECENT
IMPLEMENTATIONS
AND DEMONSTRATORS
45
IFCTOLBD CONVERTER
46Jyrki Oraskari, https://github.com/jyrkioraskari/IFCtoLBD
SENSOR DATA EXAMPLE: GIGANTIUM IOT
LIVING LAB AALBORG
47
̶ 35 sensor nodes monitoring Temperature (°C), Relative Humidity (%),
Air Pressure (hPa), Indoor Air Quality (Total Volatile Organic Compounds
((TVOC), ppb) and CO2 (ppm)), illuminance (lux) and motion
̶ Data storage in SQL database
̶ Data monitoring and visualization in Grafana
Source: Rodriguez et al. (2018)
SCALING INTO MULTIPLE KNOWLEDGE BASES
Repo of 531 LBD building graphs
▸ 36 million triples in total
▸ 372 bot:Building instances
▸ 3,523 bot:Zone instances
▸ 2,117 bot:Space instances
▸ 615,452 bot:Element instances
converted from
http://smartlab1.elis.ugent.be:8889/IFC-repo/ to
LBD using https://github.com/jyrkioraskari/IFCtoLBD
Petrova, E., Pauwels, P., Svidt, K., & Jensen, R.L. (2018) From patterns to evidence: Enhancing sustainable building design with
pattern recognition and information retrieval approaches. Proceedings of the 12th European ECPPM conference, pp. 391-399.
BOT + SOSA + GEOMETRY
49
Mads Holten Rasmussen, Christian Aaskov Frausing, Christian Anker Hviid Jan Karlshøj, Integrating Building
Information Modeling and Sensor Observations using Semantic Web, Semantic Sensor Networks Workshop,
https://youtu.be/P_38gIvrbmg
WEB-BASED BIM MODELLING
Mads Holten Rasmussen, https://www.youtube.com/watch?v=lWoWjM-xCvY
- Open Duplex house in Revit
- Use exporter to export it to our server
- Use web-viewer to show geometry + properties
- Change a property in Revit to demonstrate that only the difference is stored
3D GEOMETRY IN RDF
Pieter Pauwels, Thomas Krijnen, Walter Terkaj, Jakob Beetz (2018) Enhancing the ifcOWL ontology with an alternative
representation for geometric data. Automation in Construction (80), pp. 77-94.
SCAN TO LINKED BUILDING DATA
Jeroen Werbrouck, Semantic enrichment of the existing building geometry. Master Thesis 2018, Ghent University.
BOT AND GEOSPATIAL DATA
Kris McGlinn, BOT and geospatial data, https://www.scss.tcd.ie/~mcglink/video/tutorial/geovis/geovis.html
▸ Using BOT to interlink Ordnace
Survey Ireland building data
(>3.5 million buildings)
▸ Provide a registry of
authoratative URI’s for Irish
building stock.
CIRCULAR ECONOMY
E.M. Sauter, R.L.G. Lemmens & P. Pauwels (2018). CEO & CAMO ontologies: A circulation medium for materials in
the construction industry. IALCCE conference 2018. live query interface: http://ld-ce.com/query
▸ 1. John (Krane Marine Engineering) looking for
buildings to be demolished that are 70km away,
to get waste steel beams with hardness greater
than 100 HB for building ships?
▸ 2. Which buildings in the region of Gelderland
with >150m2 in waste stone roof tiles which can
be used as input by a construction company for
the roof of a new building?
▸ 3. Which companies have collection activities
that take back waste carpets from buildings to
be processed into asphalt by an asphalt-
processing-plant within a 50km radius?
OUTLINE
1. BIM – Infra – GIS
2. Linking the data
3. BuildingSMART linking: ifcOWL
4. A full LOD cloud?
5. W3C linking: Linked Building Data
6. Recent implementations and demonstrators
55
Ghent University
@ugent
Ghent University
Pieter Pauwels
Assistant Professor CAD & BIM
DEPT. OF ARCHITECTURE AND URBAN
PLANNING
E pipauwel.pauwels@ugent.be
T +32 9 264 38 80
M +32 479 06 68 06
www.ugent.be

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BIM from Building to urban fabric: More than just zooming out

  • 1. FROM BUILDING TO URBAN FABRIC: MORE THAN JUST ZOOMING OUT Prof. Pieter Pauwels, Ghent University, Dept. Of Architecture and Urban Planning FLAGIS GEO + BIM EVENT 11 DECEMBER 2018
  • 2. OUTLINE 1. BIM – Infra – GIS 2. Linking the data 3. BuildingSMART linking: ifcOWL 4. A full LOD cloud? 5. W3C linking: Linked Building Data 6. Recent implementations and demonstrators 2
  • 3. BIM – INFRA – GIS 3
  • 4. GIS – INFRA – BIM http://rym.fi/ http://www.tekla.com/global-bim-awards-2014/winners.html
  • 6. ONE VIEW: GIS – INFRA – BIM http://www.egeomate.com/understanding-the-bim-concept-from-the-bentley-systems-perspective/
  • 7. THE MODEL “A model represents reality for the given purpose; the model is an abstraction of reality in the sense that it cannot represent all aspects of reality.” 7 Jeff Rothenberg "AI, Simulation and Modeling" 1989. presentation by Arto Kiviniemi (2014): http://iug.buildingsmart.org/resources/London/BIM- GIS%20intergration/bim-gis
  • 8. HOW TO INTEGRATE ALL THIS? 8 J. Beetz (2014). BIM en GIS interoperabiliteit. http://www.slideshare.net/JakobBeetz/gis-bim-interoperabiliteit-stumico-presentatie-april-2014/16
  • 9. 3 KEY DIFFICULTIES FOR FULL INTEGRATION 1. Kernel 2. Content 3. Level of detail Nagel Claus, Stadler Alexandra,. Kolbe Thomas H (2009). Conceptual requirements for the automatic reconstruction of building information models from uninterpreted 3d models.
  • 10. FROM SCOPE TO SCOPE 10 GIS BIM INFRA NIBS (Alan Edgar), Introduction to National BIM Standard Version 1 Part 1 – Overview, Principles, & Methodologies, 2007 http://web.stanford.edu/group/narratives/classes/08-09/CEE215/ReferenceLibrary/National%20BIM%20Standard%20(NBIM)/intro_bim_v1.pdf
  • 11. NEED TO LINK THE PARTS OF THE ELEPHANT 11 mapping conversion translation
  • 12. presentation by Arto Kiviniemi (2014): http://iug.buildingsmart.org/resources/London/BIM-GIS%20intergration/bim-gis
  • 14. 5 STAR OPEN DATA 14https://5stardata.info/en/ Tim Berners-Lee, the inventor of the Web and Linked Data initiator, suggested a 5-star deployment scheme for Open Data: * make your stuff available on the Web (whatever format) under an open license ** make it available as structured data (e.g., Excel instead of image scan of a table) *** make it available in a non-proprietary open format (e.g., CSV instead of Excel) **** use URIs to denote things, so that people can point at your stuff ***** link your data to other data to provide context
  • 15. LOD BASED ON GRAPHS 15 URI URI URI URI URI URI URI URI URI URI URI
  • 16. LINKED OPEN DATA (LOD) 16 • distributed / decentralised information management • interactive information search and reasoning over the web • sharing partial data http://tomheath.com/blog/2009/03/linked-data-web-of-data-semantic-web-wtf/
  • 17. LOD CLOUD GROUPED PER DOMAIN 17https://lod-cloud.net/
  • 18. BRING BIM IN THE LOD CLOUD 18https://lod-cloud.net/ BIM
  • 19. COMMUNITY EFFORTS! 19 W3C LBD Community Group BuildingSMART LDWG linkedbuildingdata.net www.w3.org/community/lbd/ ifcOWL linkedbuildingdata people LDAC event http://w3.org/community/lbd/
  • 21. BUILDINGSMART INTO THE CLOUD? 21http://www.buildingsmart.org/standards/technical-vision/technical-roadmaps/
  • 22. Jakob Beetz, TU Eindhoven IFC INFRA SENSOR GIS
  • 23. VERSIONS OF IFC 23Pieter Pauwels, Walter Terkaj. EXPRESS to OWL for construction industry: Towards a recommendable and usable ifcOWL ontology. Automation in Construction 63 (2016) 100-133.
  • 24. IFCOWL ONTOLOGIES AVAILABLE 24 Ifc2x_all_lf.exp IFC2X2_ADD1.exp IFC2X2_FINAL.exp IFC2X2_PLATFORM.exp IFC2X3_Final.exp IFC2X3_TC1.exp IFC4.exp IFC4_ADD1.exp not supported not supported not supported not supported IFC2X3_Final.owl / .ttl IFC2X3_TC1.owl / .ttl IFC4.owl / .ttl IFC4_ADD1.owl / .ttl http://buildingsmart-tech.org/ifcOWL/IFC4_ADD1 http://buildingsmart-tech.org/ifcOWL/IFC4 http://buildingsmart-tech.org/ifcOWL/IFC2X3_Final http://buildingsmart-tech.org/ifcOWL/IFC2X3_TC1
  • 25. EXAMPLE IFCOWL: PROJECT STRUCTURE 25Pieter Pauwels, Ana Roxin. SimpleBIM: From full ifcOWL graphs to simplified building graphs. 11th European Conference on Product and Process Modelling (ECPPM) 2016.
  • 26. EXAMPLE IFCOWL: PROPERTY SETS 26 #6=IFCPROPERTYSINGLEVALUE('IsExternal',$,IFCBOOLEAN(.T.),$); #4=IFCPROPERTYSET('2pW3mRfBr7EwHldYmKP$PD',#33,'Pset_WindowCommon',$,(#1,#6)); #2=IFCRELDEFINESBYPROPERTIES('2yVDnLFbzAzx6B70P6n3aU',#33,$,$,(#1),#4); #1=IFCWINDOW('1BYB9o9k5FZAAI8V0ct4P4',#33,'BK_tower_window:BK_tower_window:BK_tower_windo w:145729',$,'BK_tower_window',#90910,#90904,'145729',2200.000000000015,1200.000000000011); Pieter Pauwels, Ana Roxin. SimpleBIM: From full ifcOWL graphs to simplified building graphs. 11th European Conference on Product and Process Modelling (ECPPM) 2016.
  • 27. EXAMPLE IFCOWL: PROPERTY SETS 27Pieter Pauwels, Ana Roxin. SimpleBIM: From full ifcOWL graphs to simplified building graphs. 11th European Conference on Product and Process Modelling (ECPPM) 2016.
  • 28. A FULL LOD CLOUD? 28
  • 29. APPLY IDENTICAL RECIPE TO INFRA 29T. Liebich (2015), IFC Alignment, Presentation at BuildingSMART Standards Summit Singapore 2015.
  • 30. USE EXISTING DATA IN THE GIS DOMAIN 30GeoSPARQL http://www.opengis.net/ont/geosparql#
  • 31. LINKING GIS, INFRA, AND BIM 31 EXPRESS & IFC/SPFF BIM GISINFRA EXPRESS & IFC/SPFF XML and RDF
  • 32. LINKING GIS, INFRA, AND BIM 32 EXPRESS & IFC/SPFF BIM GISINFRA EXPRESS & IFC/SPFF XML and RDF ifcOWL & ifcRDF P. Pauwels & W. Terkaj. EXPRESS to OWL for construction industry: Towards a recommendable and usable ifcOWL ontology. Automation in Construction 63, pp. 100-133.
  • 33. LINKING GIS, INFRA, AND BIM 33 EXPRESS & IFC/SPFF BIM GISINFRA EXPRESS & IFC/SPFF XML and RDF ifcOWL & ifcRDF ifcOWL & ifcRDF P. Pauwels & W. Terkaj. EXPRESS to OWL for construction industry: Towards a recommendable and usable ifcOWL ontology. Automation in Construction 63, pp. 100-133.
  • 34. LINKING GIS, INFRA, AND BIM 34 EXPRESS & IFC/SPFF BIM GISINFRA EXPRESS & IFC/SPFF XML and RDF ifcOWL & ifcRDF ifcOWL & ifcRDF
  • 36. INDUSTRY FOUNDATION CLASSES (IFC) 36 There exists a standard, but: ▸ Not modular ▸ Not extensible ▸ Not simple enough AND not web-compliant! P. Pauwels, K. McGlinn, M. Lefrançois, M.H. Rasmussen, A. Roxin. The W3C Linked Building Data Community Group. W3C Technical Plenary and Advisory Committee meetings week (TPAC) 2018.
  • 37. 37 started Dec. 2014 now 76 participants W3C LBD COMMUNITY GROUP http://w3.org/community/lbd/
  • 38. LDAC 2015 LDAC 2014 LDAC 2012 http://www.linkedbuildingdata.net/ldac2018/
  • 39. MISSION STATEMENT 39 Bring together experts in the area of Building Information Modeling (BIM) and Web of Data technologies to: 1. define existing and future use cases and requirements for Linked Data based applications across the life cycle of buildings. 2. discuss best practices for publishing building data on the Web 3. propose ontology models to describe: ▸ Buildings and building elements (topology, associate values to properties) ▸ Products and product properties 4. discuss how they can be used together with other specifications: ▸ existing standards (IFC, GeoSPARQL, Semantic Sensor Network, ...) ▸ separate initiatives (schema.org, Haystack, BRICK, ...) http://w3.org/community/lbd/
  • 40. KEY ONTOLOGIES 40 ▸ Project Ontology ▸ Building Topology Ontology (BOT) ▸ Product Ontology (PRODUCT) ▸ Properties Ontology (PROPS) https://github.com/w3c-lbd-cg/
  • 41. BUILDING TOPOLOGY ONTOLOGY 41Image from Mads Holten Rasmussen.
  • 42. BUILDING TOPOLOGY ONTOLOGY 42Image from Mads Holten Rasmussen.
  • 44. OVERALL LBD ONTOLOGY STRUCTURE 44 geo Schema.org GoodRelations inst:Wall_X rdf:typerdf:type geom P. Pauwels, K. McGlinn, M. Lefrançois, M.H. Rasmussen, A. Roxin. The W3C Linked Building Data Community Group. W3C Technical Plenary and Advisory Committee meetings week (TPAC) 2018.
  • 46. IFCTOLBD CONVERTER 46Jyrki Oraskari, https://github.com/jyrkioraskari/IFCtoLBD
  • 47. SENSOR DATA EXAMPLE: GIGANTIUM IOT LIVING LAB AALBORG 47 ̶ 35 sensor nodes monitoring Temperature (°C), Relative Humidity (%), Air Pressure (hPa), Indoor Air Quality (Total Volatile Organic Compounds ((TVOC), ppb) and CO2 (ppm)), illuminance (lux) and motion ̶ Data storage in SQL database ̶ Data monitoring and visualization in Grafana Source: Rodriguez et al. (2018)
  • 48. SCALING INTO MULTIPLE KNOWLEDGE BASES Repo of 531 LBD building graphs ▸ 36 million triples in total ▸ 372 bot:Building instances ▸ 3,523 bot:Zone instances ▸ 2,117 bot:Space instances ▸ 615,452 bot:Element instances converted from http://smartlab1.elis.ugent.be:8889/IFC-repo/ to LBD using https://github.com/jyrkioraskari/IFCtoLBD Petrova, E., Pauwels, P., Svidt, K., & Jensen, R.L. (2018) From patterns to evidence: Enhancing sustainable building design with pattern recognition and information retrieval approaches. Proceedings of the 12th European ECPPM conference, pp. 391-399.
  • 49. BOT + SOSA + GEOMETRY 49 Mads Holten Rasmussen, Christian Aaskov Frausing, Christian Anker Hviid Jan Karlshøj, Integrating Building Information Modeling and Sensor Observations using Semantic Web, Semantic Sensor Networks Workshop, https://youtu.be/P_38gIvrbmg
  • 50. WEB-BASED BIM MODELLING Mads Holten Rasmussen, https://www.youtube.com/watch?v=lWoWjM-xCvY - Open Duplex house in Revit - Use exporter to export it to our server - Use web-viewer to show geometry + properties - Change a property in Revit to demonstrate that only the difference is stored
  • 51. 3D GEOMETRY IN RDF Pieter Pauwels, Thomas Krijnen, Walter Terkaj, Jakob Beetz (2018) Enhancing the ifcOWL ontology with an alternative representation for geometric data. Automation in Construction (80), pp. 77-94.
  • 52. SCAN TO LINKED BUILDING DATA Jeroen Werbrouck, Semantic enrichment of the existing building geometry. Master Thesis 2018, Ghent University.
  • 53. BOT AND GEOSPATIAL DATA Kris McGlinn, BOT and geospatial data, https://www.scss.tcd.ie/~mcglink/video/tutorial/geovis/geovis.html ▸ Using BOT to interlink Ordnace Survey Ireland building data (>3.5 million buildings) ▸ Provide a registry of authoratative URI’s for Irish building stock.
  • 54. CIRCULAR ECONOMY E.M. Sauter, R.L.G. Lemmens & P. Pauwels (2018). CEO & CAMO ontologies: A circulation medium for materials in the construction industry. IALCCE conference 2018. live query interface: http://ld-ce.com/query ▸ 1. John (Krane Marine Engineering) looking for buildings to be demolished that are 70km away, to get waste steel beams with hardness greater than 100 HB for building ships? ▸ 2. Which buildings in the region of Gelderland with >150m2 in waste stone roof tiles which can be used as input by a construction company for the roof of a new building? ▸ 3. Which companies have collection activities that take back waste carpets from buildings to be processed into asphalt by an asphalt- processing-plant within a 50km radius?
  • 55. OUTLINE 1. BIM – Infra – GIS 2. Linking the data 3. BuildingSMART linking: ifcOWL 4. A full LOD cloud? 5. W3C linking: Linked Building Data 6. Recent implementations and demonstrators 55
  • 56. Ghent University @ugent Ghent University Pieter Pauwels Assistant Professor CAD & BIM DEPT. OF ARCHITECTURE AND URBAN PLANNING E pipauwel.pauwels@ugent.be T +32 9 264 38 80 M +32 479 06 68 06 www.ugent.be