Conference Editor

Jianshun Zhang; Edward Bogucz; Cliff Davidson; Elizabeth Krietmeyer

Keywords:

data model, BIM, information exchange, multidisciplinary

Location

Syracuse, NY

Event Website

http://ibpc2018.org/

Start Date

25-9-2018 10:30 AM

End Date

25-9-2018 12:00 PM

Description

The goal of Building Information Modeling (BIM) is the continuous use of digital construction models from the planning stage onwards. The affected processes are iterative and involve multiple stakeholders who work at varying pace and in varying levels of detail. These stakeholders require highly specific tools based on diverging data models. To satisfy all those requirements one of the best known Open BIM implementations – IFC – offers a data model containing more than one thousand different types – from basic to highly specific. Due to its complexity, potential users must undergo prolonged training. The even bigger challenge for IFC, however, is keeping up with the updates of building regulations or with the ever expanding state of the art in simulation tools. Our approach, SIMULTAN, in contrast to IFC, consist of 26 different basic types. They can be combined to increasingly complex models, which can themselves be used as types for other models. This enables each domain expert to create a custom data structure for any specific task, which is automatically compatible with the data structure of any other domain expert using the same basic types. It shortens the training time and facilitates the loss-, corruption-, and conflict-free exchange of information between domain experts, which is a key aspect of BIM. As a use case, we present the calculation of the U-Value of a multi-layered wall. We compare number, complexity and adequacy of the necessary data modelling steps in IFC4 and in SIMULTAN. The result shows that the flexible data model of SIMULTAN can be better adapted to the task. Another significant advantage of SIMULTAN is its inbuilt separation of responsibilities at the level of the most basic types, which, when combined with secure transaction technologies, can enable safe, effective and easily traceable interaction among stakeholders.

Comments

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DOI

https://doi.org/10.14305/ibpc.2018.ms-4.03

Creative Commons License

Creative Commons Attribution-Noncommercial 4.0 License
This work is licensed under a Creative Commons Attribution-Noncommercial-Share Alike 4.0 License.

COinS
 
Sep 25th, 10:30 AM Sep 25th, 12:00 PM

Big-open-real-BIM Data Model - Proof of Concept

Syracuse, NY

The goal of Building Information Modeling (BIM) is the continuous use of digital construction models from the planning stage onwards. The affected processes are iterative and involve multiple stakeholders who work at varying pace and in varying levels of detail. These stakeholders require highly specific tools based on diverging data models. To satisfy all those requirements one of the best known Open BIM implementations – IFC – offers a data model containing more than one thousand different types – from basic to highly specific. Due to its complexity, potential users must undergo prolonged training. The even bigger challenge for IFC, however, is keeping up with the updates of building regulations or with the ever expanding state of the art in simulation tools. Our approach, SIMULTAN, in contrast to IFC, consist of 26 different basic types. They can be combined to increasingly complex models, which can themselves be used as types for other models. This enables each domain expert to create a custom data structure for any specific task, which is automatically compatible with the data structure of any other domain expert using the same basic types. It shortens the training time and facilitates the loss-, corruption-, and conflict-free exchange of information between domain experts, which is a key aspect of BIM. As a use case, we present the calculation of the U-Value of a multi-layered wall. We compare number, complexity and adequacy of the necessary data modelling steps in IFC4 and in SIMULTAN. The result shows that the flexible data model of SIMULTAN can be better adapted to the task. Another significant advantage of SIMULTAN is its inbuilt separation of responsibilities at the level of the most basic types, which, when combined with secure transaction technologies, can enable safe, effective and easily traceable interaction among stakeholders.

https://surface.syr.edu/ibpc/2018/MS4/3

 

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