Building Information Modeling

Transcription

1 Building Information Modeling Gunnar Grün, Munich, Auf Wissen bauen

2 Building Information Modeling (BIM) towards the uniform central building model

3 BIM today (1) Used for visualization Reception as BIM being complex 3D CAD Yet most used data exchange format is PDF Models are provided as product catalogue BIM properties retrieved from producer Layers are used to separate domain models Calculations performed on models Collision check Quantity take-off Costs Quelle: mepcor.com Quelle: associated-architects.co.uk

4 BIM today (2) BIM mostly applied little & closed Quality issues with IFC data Responsibilities and liabilities Quelle: Autodesk.com Quelle.: AEC3 Deutschland GmbH

5 BIM today (3) Undefined level of detail in building lifecycle Uncertain input parameters for calculations and predictions Data quality and depth of information according to usage scenario and field of application City, district, building, room, Quelle: ibpsa-germany.org

6 Digitalization in the Construction Sector Two Challenges Change in Process More information at different level of details available, thus: decisions can be made earlier and more substantiated Current business models (e.g. variations) will be overcome by new ones, thus: cooperation will change Much innovation potential along the process Interoperability of Stakeholders Very many very small enterprises Very many specialised tools and established tool chains interfaces for exchange of data and information Big open BIM required

7 BIMiD BIM Referenzobjekt in Deutschland Objective: Demonstration and Evaluation of the BIM method on two construction projects. Approach: Analysis of application methods, work organisation, user acceptability, contract design, etc. Results: Model based, integral design is more efficient prerequisite: early decision to use BIM and involvement of all parties»bim reference process«

8 BIM-Reference-Building-Process HOAI Leistungsphase 3 in Zusammenarbeit mit AEC3 Deutschland GmbH und Abstimmung mit AHO e.v.

9 BIM-Reference-Building-Process HOAI Leistungsphase 3 Owner Architect Engineers BIM-Manager in Zusammenarbeit mit AEC3 Deutschland GmbH und Abstimmung mit AHO e.v.

10 BIM-Reference-Building-Process HOAI Leistungsphase 3 Quality Control Design Coordination Communication Completeness Checking BIM Execution Plan in Zusammenarbeit mit AEC3 Deutschland GmbH und Abstimmung mit AHO e.v.

11 Ideal Planning Process BIM as central information source actors tools figures owner IBP Energy demand architect planner BIM IBP WUFI IBP VEPZO IBP Generis Moisture mgmt. Air quality LCA/LCC engineer DIALux Daylight Proof and documentation

12 Novel approach combines existing solutions IBP:Connect Smart service for handling complex information flow in planning, construction and operation Changing multi-disciplinary project teams with specialized tools and expert knowledge Efficient information management for integrated planning and optimization Combination of disciplines, F&E services and tools Data foundation for prediction of operations phase of building Systems behaviour modeling and simulation

13 IBP:Connect Platform Information access via Linked Data Space Data representing construction, materials, system operations, space usage BIM Tool Association of different types of content Functional elements Physical and technical parameters Standard and default values Integrated Performance Assessment Traceability of simulation results Key performance indicator assessment Building Design Data Space Empirical Data Akquisition Tool

14 IBP:Connect example IBP:18599 Specification of input dat Formatting and quality of data Model View Definition (MVD) Database interface (Neuberg, Rank, Ekkerlein; 2001)

15 Interoperability for building performance simulation Information Delivery Manual (IDM) defining interactions e.g. Conductive heat loss Heating energy / Primary energy demand Ventilation Thermal comfort / Illumination analysis Fire protection Export Import Domain Model BIM Simulation Model

16 BIM Projects EnEff-BIM / IEA EBC Annex 60 Data conversion from BIM to Modelica language Building energy performance simulation Methods for further analysis and exchange of BIM data Co-Simulation and workflow automation Validation and demonstration projects at the levels of building, districts and systems operation

17 Vision of the digital building twin New built design model stock stock model implement ation as-is-model FM operation model Modification Retrofit model Connectivity Constructio n4.0 Demolition Recycling, LCA Central data model