BIM MEPAUS PRACTICES Issued By: Revision: Date

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1 BIMMEP AUS PRACTICES Industry Foundation Models and Shared Parameter Guidelines Issued By: BIMMEP AUS 30 Cromwell Street, Burwood 3205 VIC Australia Revision: Date 02 :

2 Acknowledgements BIMMEP AUS acknowledges the contributions of the following organisations involved in the development and review of this document: Autodesk A2K Technologies Formatting conventions In addition to standard text formatting for Section and Clause Headings, Table Headings, etc the table below shows other text formats that are used in BIMMEP AUS Standards and reference documents and their application: Text Type Example Indicates Normal italicized text BIMMEP AUS Specification The name of a specific referenced document or standard. Bold italicised text BIM Execution Plan The generic title for a type of Document. Grey bold text Cross Reference A cross reference to a Section, Clauses or tables, etc that can be found in this document. Dark red text LOD A term or abbreviation that is defined in the BIM MEP AUS website glossary under Practices Blue text Hyperlink / weblink Blue italicised text Explanatory notes Explanatory notes are provided in the document explaining the reasoning behind the decisions incorporated within the naming and measurement systems. Green text Future Develop This indicates sections or requirements which are still under development but planned to be included within BIMMEP AUS. Keeping BIM-MEP AUS Up-to-date BIMMEP AUS software and model content is regularly updated to reflect changes in legislation, technology and industry practice. Feedback and suggestions in relation to the standards via the BIMMEP AUS website are welcome. Updates to software and content are managed and delivered through the BIMMEP AUS website to registered BIMMEP AUS users. Liability Disclaimer BIMMEP AUS makes no warranty, expressed or implied, including but not limited to any implied warranties of merchantability and fitness for a particular purpose, nor assumes any legal liability or responsibility for the accuracy, completeness, or usefulness of the information in this document. In no event shall BIMMEP AUS or its agents be liable for damages or losses resulting from your use of, or reliance on the information provided in this document. COPYRIGHT BIMMEP AUS All rights reserved. BIMMEP AUS Page 2

3 Table of Contents 1 INTRODUCTION Scope Aims Development Approach BIMMEP AUS MODELLING FRAMEWORK Introduction Modelling System Overview Content Level of Developments Autodesk Revit MEP Autodesk Revit MEP Australian Content Pack BIMMEP AUS IFM Generic Design Content Manufacturer s Certified Models BIMMEP AUS Revit Template BIMMEP AUS Master Shared Parameter List SCHEDULING DOCUMENTS Scheduling Documents Specifications BIMMEP AUS IFM Schedules BIMMEP AUS Master Shared Parameter List INDUSTRY FOUNDATION MODELS Model Workflows IFM/MCM Naming Syntax Categories REVIT PARAMETER TYPES System Parameters Project Parameters Family Parameters Shared Parameters Application of Parameters PARAMETER CLASSIFICATION Disciplines Type of Parameter Parameter Group SHARED PARAMETER SCHEME Industry Schemes BIMMEP AUS Scheme PARAMETER NAMING CONVENTION Introduction Syntax Parameter Naming Conventions BIMMEP AUS Page 3

4 9 MASTER SHARED PARAMETER SCHEDULE Schedule Overview Schedule Management Non BIMMEP AUS Shared Parameters Shared Parameter File BIMMEP AUS Page 4

5 1 INTRODUCTION 1.1 Scope These guidelines set out the BIMMEP AUS framework for the development and management of Industry Foundation Models and the BIMMEP AUS Master Shared Parameter Schedule. Industry Foundation Models (IFMs) provide Autodesk Revit MEP plant, equipment and fitting families for designers and manufacturers. The models are sourced from the Autodesk Australian Content Pack and incorporate BIMMEP AUS Shared Parameters to provide families that can be used for design modelling as well as the basis for development of Manufacturer s Certified Models (MCMs). The BIMMEP AUS Master Shared Parameter Schedule is a BIMMEP AUS controlled document that lists and classifies all shared parameters for use in BIMMEP AUS model content and workflows related to design, construction and supply chain integration. The shared parameters also include for facility and asset management requirements. Use of the shared parameters can extend to off model data applications including a range of BIM tofield construction and commissioning workflows and eprocurement. 1.2 Aims The use of IFMs and BIMMEP AUS Master Shared Parameters provides a number of important benefits to designers, constructors, manufacturers, facility managers and owners: BestofBreed MEP content for the Australian building services sector; Structured and consistent parameter scheduling that enables the industry to reliably and efficiently leverage workflows including design scheduling and BIMtoField data exchange; and Reduced implementation costs. 1.3 Development Approach BIMMEP AUS engaged with industry practitioners to assist the development of the naming convention and shared parameter strategy. As far as practicable, the IFMs and shared parameters aim to comply with, in order of precedence: Established industry naming conventions; Australian & New Zealand Revit Standards (ANZRS); Revit MEP shared parameter schema; Compliance with international standards including: ISO 16739:2013 Industry Foundation Classes (IFC) for data sharing in the construction and facility management industries; Construction Operations Building Information Exchange (COBie); was not always possible. As a consequence, it may be necessary to map BIMMEP AUS parameters to these and other standards as necessary. Model geometry is based on relevant standards where these exist or has been sourced from supplier data to develop representative geometries. BIMMEP AUS Page 5

6 2 BIMMEP AUS MODELLING FRAMEWORK 2.1 Introduction BIMMEP AUS modelling uses software, the BIMMEP AUS template and content to support a range of integrated BIM based workflows ncluding: Design to CommissionedAsBuilt; BIM to Field; Design to Fabrication; Supply Chain Integration; BIMFM; Facility and Asset Management; and Ecommerce. These workflows require best of breed content and structured data sets to enable the exchange of information through the project delivery and industry supply chains as well as ultimately facility and maintenance management sectors. 2.2 Modelling System Overview The components of environment: the BIMMEP AUS modelling system combine to provide a fully integrated modelling Figure 1: BIMMEP AUS Integrated Modelling System Autodesk develop and maintain Revit MEP and the Autodesk Australian MEP Content, whilst the BIMMEP AUS Templatee and BIMMEP AUS Master Shared Parameter Schedule are developed and maintained by BIM MEP AUS. 2.3 Content Level of Developments Industry Foundation Models are based on relevant Industry Standards and/or representative manufacturer s design data sufficient to deliver a minimum LOD 300 design model. Manufacturer s certified content provides LOD 400 models and replaces the provision of a Manufacturer s Certified Product Drawings and Technical Schedules. Completion of the commissioning and life cycle shared parameter schedules deliver LOD500 level conten that can be used for a range of purposes including facility and maintenance management. BIMMEP AUS Page 6

7 2.4 Autodesk Revit MEP BIMMEP AUS utilizes Autodesk Revit MEP as its core BIM authoring platform. The Industry Foundation Models and BIMMEP AUS Master Shared Parameter Schedule are based on the Revit MEP modelling and parameter organisation. 2.5 Autodesk Revit MEP Australian Content Pack The Autodesk Revit MEP Australian Content Pack is a library of plant, equipment and fitting families developed and maintained by Autodesk that comply with Autodesk Revit Content Guidelines. Included within the families are the Family Parameters needed to control the dimensions and geometry as well as the functionality of the model together with associated core system and shared parameters. Content models are purposely lean with respect to geometry whilst still providing sufficient detail to allow designers and modellers to easily distinguish the different types of plant, equipment and fittings within the model. 2.6 BIMMEP AUS IFM Generic Design Content The BIMMEP AUS Industry Foundation Model Content takes the Autodesk Australian Content Pack and integrates the BIMMEP AUS Shared Parameter Schedule for each family to provide a comprehensive set of shared parameters. The generic design IFMs are an integral part of the template and are published through the BIM MEP AUS website. IFMs provide a sufficient range of Types within the family to meet project spatial planning requirements to LOD 300 requirements as well as the technical schedules typically used by designers and contractors for specification and procurement scheduling respectively. 2.7 Manufacturer s Certified Models Manufacturer s Certified Models (MCMs) are generally best created from the BIMMEP AUS IFMs and comply with the BIMMEP AUS Content Specifications to work seamlessly with the BIMMEP AUS Template. To be compliant with BIMMEP AUS, Manufacturer s Certified Content must be: Fully interchangeable with the relevant IFM Work seamlessly with the BIMMEP AUS Template Be complaint with the relevant BIMMEP AUS specification and the BIMMEP AUS Master Shared Parameter Schedule including the relevant GUIDs. MCMs issued by the manufacturer are accurate representations of the physical and functional characteristics of the product to be supplied to the project; they replace manufacturer s certified drawings and schedules traditionally issued by manufacturers. Manufacturers can use the IFMs to customize the geometry to suit their particular product details and can, if necessary, modify the family geometry to provide better representation of their particular product whilst working within the principles of lean content geometry. The form of the MCM depends on whether it is plant, equipment or fittings. For plant the MCM is a single type with the relevant technical schedules attached, for equipment the MCM can be a true family of types, but still with fixed geometry for each type. For plant such as fans, pumps and air handling units it is expected that manufacturer s will augment their website selection software to include content configurators. These content configurators will select the correct type from the Manufacturer s prebuilt library of product families to which it then adds the relevant technical schedules prior to publishing. For equipment and fittings, manufacturer s can host their MCMs through Design Content delivered via the BIM MEP AUS website and/or have it hosted on their own website. BIMMEP AUS Page 7

8 2.8 BIMMEP AUS Revit Template The Revit BIMMEP AUS Revit Template provides users with: System libraries for ductwork, pipework, electrical cabling and containment built to Australian Standards; A range of standard modelling and design views; and Interfaces to the BIMMEP AUS IFM Content Pack. The User Guide and Specification for the BIMMEP AUS Revit Template is located on the BIMMEP AUS website. 2.9 BIMMEP AUS Master Shared Parameter List The BIMMEP AUS Master Shared Parameter Schedule is hosted on the BIMMEP AUS website that lists the Revit shared parameters used to schedule BIMMEP AUS systems, plant, equipment and fittings. BIMMEP AUS Shared parameters are grouped as follows: Identity BIM Classification System Analysis Performance / Quality Manufacturer Green Building Properties Commissioning Completion The BIMMEP AUS Master Shared Parameter Schedule also details the classification of each shared parameter within the Autodesk Revit Shared Parameter Schema. BIMMEP AUS Page 8

9 3 SCHEDULING DOCUMENTS 3.1 Scheduling Documents The scheduling of plant, equipment and fittings is documented through the following combination of documents: BIMMEP AUS Specifications BIMMEP AUS IFM Schedules BIMMEP AUS Master Shared Parameter Schedule 3.2 Specifications The specifications provide a technical overview of the plant, equipment or fitting together with the shared parameters and may provide supporting scheduling advice, particularly in relation to industry standard practice where appropriate. 3.3 BIMMEP AUS IFM Schedules Each specific Functional Family Type has a dedicated BIMMEP AUS IFM Schedule which is a Microsoft Excel Document. The document has two components: Blue Tabbed Listing of IFM Families and their Types Green Tabbed CAB Shared Parameter Schedule. Functional Family Types form the primary level classification for all plant, equipment and fittings. Functional Family SubTypes serve to further classify the functional types into specific families generally with similar geometries and technical schedules. To illustrate, for the Functional Type Fans, there are a number of functional subtypes including: AdjustablePitchAxial AxialPlate RoofMountVerticalDischargeCent. Each of these will then have a specific catalogue of types based on size. 3.4 BIMMEP AUS Master Shared Parameter List The master shared parameter list contains the controlled list of shared parameter names and their classification within the Revit MEP shared parameter classification system. As further plant and equipment are added to BIMMEP AUS, the BIMMEP AUS Master Shared Parameter Schedule will be used to select the relevant shared parameter or, if non have been previously designated for a specific scheduling requirement, a new parameter name will be added. BIMMEP AUS Page 9

10 4 INDUSTRY FOUNDATION MODELS Industry Foundation Models (IFMs) provide a set of Revit families that are intended to cover the plant, equipment and fitting requirements for all services trades. IFMS are suitable for all levels of model development up to and including LOD 200LOD300 design modelling. Manufacturers are also able to utilise the IFMs to generate their specific families and can be used to deliver a LOD 500 model. 4.1 Model Workflows Workflows in relation to the Industry Foundation Models, Design and Manufacturer s content are shown below: Figure 3.1: Model Workflows BIMMEP AUS classifies MEP components into plant, equipment and fittings. BIMMEP AUS Page 10

11 4.2 IFM/MCM Naming Syntax The naming convention is based on ANZRS syntax, except that the ANZRS prefix is not applied due to the difficulties associated with international supplier content. Syntax is as follows: IFM: MCM: <Functional Type>_< Functional SubType>_<Generic >_<Descriptor> <Functional Type>_< Functional SubType>_<Manufacturer>_<Descriptor> To illustrate the use of this syntax, the Industry Foundation Model for Adjustable Pitch Axial Fans, this is shown below: IFM Generic Design Model Fan_AdjustablePitchAxial_Generic_IFM Types include: DIA _1000 DIA_710 DIA _400 Manufacturer Certified Model Fan_AdjustablePitchAxial_Manufacturer sname_aps 710 Figure : IFM and MCM Families In this case, the MCM model is based on the DIA 710 Type from the Manufacturer s library of available Types. BIMMEP AUS Page 11

12 4.3 Categories Each IFM will be generated using the appropriate Family Category that assigns the parameter and functional properties of a predefined family category. Categories are built into Revit MEP and cannot be redefined by the user: The available categories related to building services families are broadly classified into the following types: Equipment: Devices: Fixtures: Fittings: Equipment comprises end of line plant such as chillers, air handling units generators and pumps. End of Line components similar to fixtures that generate inputs into systems and include: nurse call points or thermostats End of line components such as air terminals, light fittings, power outlets, sinks, sprinklers, etc that are generally fixed to surfaces. Inline components that are fitted into piping, ductwork and cabling systems and includes accessories. Refer to the BIMMEP AUS Share Parameter Master Schedule for the listing of Revit categories. BIMMEP AUS Page 12

13 5 REVIT PARAMETER TYPES Revit classifies parameters into four key types, each type of parameter has a specific purpose and functionality: System Parameters Project Parameters Family Parameters Shared Parameters The following provides an overview of each of these parameter types and their intended use. 5.1 System Parameters System parameters are builtin to Revit and are embedded into projects and families. They cannot be modified, added to or deleted by the user. Revit system parameters include: Length Width Height Dimensions Dimensions Dimensions Manufacturer Model Description Keynote URL OmniClass Number Identity Data Identity Data Identity Data Identity Data Identity Data Identity Data System parameter values can be shown in tags and schedules. 5.2 Project Parameters Project Parameters are user defined shared parameters that are added to selected element categories for a specific project. An example of the use of Project Parameters is a requirement to identify prefabricated components on a project. There is no parameter within the BIMMEP AUS shared parameter scheme for this so a Project Specific Pre Fabrication parameter is added to identification schedule to identify components to be delivered through offsite fabrication: PreFabComponent Yes/No The use of project parameters should preferably be kept to a minimum. 5.3 Family Parameters Family parameters are specific to a Family to which they are added and are generally used to define the family, particularly with regard to parametric performance and geometry. They do not show in tags or schedules, or other families of the same category. Family parameters are setup in the Family Editor and can be either Type Parameters or Instance Parameters. BIMMEP AUS Page 13

14 5.4 Shared Parameters Shared Parameters are stored in a shared parameters text file and from there they can be loaded into families as Type or Instance based parameters or into projects as Project Parameters. Shared parameters can be used in schedules and tags and also to share information with other data bases. They carry the majority of the data to be exchanged between organizations and/or used for design and BIMtoField. When created, Shared Parameters are given an automatically generated GUID (Global Unique Identifier). They can be exported to other Shared Parameter files, in which case they will still contain the associated GUID. Shared Parameter values can be searched, extracted and pushed to a variety of file formats including Excel and SQL databases. 5.5 Application of Parameters System Parameters form part of the Revit programme with the Identity Data system parameters primarily used for content identification and scheduling. Family Parameters are used within the families and are added via the Family Editor. Family Parameters are included within IFMs to define geometry and function. Project Parameters are added via Manage>Settings>Project Parameters. The use of Project Parameters should generally be kept to a minimum, particularly in design. Shared Parameters are added to the IFMs as part of the customization of the global content developed by Autodesk. The Shared Parameter list is developed by BIMMEP AUS. The Shared Parameters provided with the IFMs should generally not be changed, however Project Parameters can be added. BIMMEP AUS Page 14

15 6 PARAMETER CLASSIFICATION Revit organises shared parameter data through a range of classification fields including Discipline Type of Parameter Parameter Group The Master Shared Parameter Schedule provides the available fields for each of the above within the Revit Classification Scheme. 6.1 Disciplines Revit has a predefined discipline structure: Structural HVAC Electrical Piping Energy Common Revit Disciplines provide the principal means of organising views within the model. The Common Discipline is used for those parameter types that are used across all categories. 6.2 Type of Parameter Type of Parameter defines the type of parameter ie Airflow, etc. The available range of Revit Type of Parameter are determined by the Revit Discipline selected; selecting HVAC for instance will allow selection of Airflow, Resistance, etc. 6.3 Parameter Group Parameter Group defines grouping within each of the disciplines and are used to organise the display of shared parameters into logical groups. Within Revit it is possible to create Parameter Groups and BIMMEP AUS grouping incorporates both established groups as well as a number of new groups which help organise information into logical groups which support progressive development of the data sets. The core parameter groups are reflected in the Master Shared Parameter Structure and include: Identity BIM Classification System Analysis Green Building Properties Performance / Quality Manufacturer Commissioning Completion Plus Constraints Dimensions Geometry Visibility BIMMEP AUS Page 15

16 7 SHARED PARAMETER SCHEME There are a number of published shared parameter schedules currently in use, each with their own classification schemes used to organize the parameters: 7.1 Industry Schemes The two most common industry schemes are: Autodesk Master Shared Parameter List ANZRS Master Shared Parameter List Autodesk s Classification Scheme is as follows: Category: Part Type: Parameter Name: Parameter Group: Parameter Type: GUID: Discipline: Type of Parameter: Mechanical Equipment Air Conditioners Packaged Rooftop Total Heating Capacity Mechanical Airflow Shared Parameter 78ce3aba84570a7d7038e46cd3b71 HVAC Air Flow Australia & New Zealand s Scheme is as follows: Category: Parameter Group: Parameter Name: GUID: Discipline: Type of Parameter: Mechanical Equipment Mechanical Airflow TotalHeatingCapacity_ANZRS 78ce3aba84570a7d7038e46cd3b71 HVAC Airflow 7.2 BIMMEP AUS Scheme The scheme used by BIMMEP AUS is based on grouping similar parameters rather than the category. In this way the list is kept relatively small as the same parameters may be used by a number of plant, equipment and fitting items. The parameters required for each component are listed in the relevant specification and draw from the master shared parameter list. Based on the above strategy, the schemes the scheme for BIMMEP AUS would be as follows: Parameter Group: Parameter Name: Units: Discipline Type of Parameter GUID Performance Quality FanAirFlow L/s HVAC AirFlow 78ba3rta84680m4d8218e74mm3b26 BIMMEP AUS Page 16

17 8 PARAMETER NAMING CONVENTION 8.1 Introduction The BIMMEP AUS parameter naming convention generally aligns Autodesk, ANZRS, IFC and COBie guidelines, noting that these are not cohesive and/or sufficient to meet the requirements of the BIMMEP AUS integrated workflows. 8.2 Syntax CamelCase format has been adopted to align with ANZRS and Ifc practice. The use of CamelCase is preferred as it significantly improves the reliability of parameter names by database applications. The following conventions are incorporated in the shared parameter naming convention Use of CamelCase No spaces in the naming string Units of measure are not included in the parameter name Country and Standards Prefix/suffixes are not included in the names Mathematical operators in the naming string are not permitted: Plus +, Minus Divide / Multiply * Hash # Carat ^ 8.3 Parameter Naming Conventions The parameter naming conventions are defined in the Naming Convention and Units of Measure Guidelines. In general, the naming convention follows in order of hierarchy: Industry naming conventions Ifc parameter names The following key principles apply: Xxxxx indicates a Design Parameter such as SupplyAirTemperature; XxxxFitted indicates the requirement for a standard option on a component; XxxxxCal indicates a Revit calculated value; and XxxxxActual indicates a final commissioning result or measured value. BIMMEP AUS Page 17

18 9 MASTER SHARED PARAMETER SCHEDULE 9.1 Schedule Overview The Master Shared Parameter Schedule is an Excel based BIMMEP AUS Master Shared Parameter Schedule which is used to manage the Shared Parameter Master List. An individual Workbook is provided for each discipline. Tables are provided for each Design/Trade Discipline with secondary classification of the parameters organized by the following Shared Parameter Grouping Identity BIM Classification System Analysis Green Building Properties Performance / Quality Manufacturer Commissioning Completion This grouping is organized by workflow requirements rather than traditional Revit classifications structures. The Identity, BIM Classification and Completion Schedules are common across all Design/Trade disciplines. An additional parameter grouping, Engineering, is provided in the BIMMEP AUS Master Shared Parameter Schedule that augments the Performance/Quality Schedule. This schedule lists quality/performance and engineering parameters used across multiple disciplines such as Sound Power Levels, Electric Motors, Power Supplies, etc. In most cases, these are assigned as Common Revit Discipline. 9.2 Schedule Management Requests for additional parameters can be made through the BIMMEP AUS website template update page. Updates and revisions will be issued quarterly and list of proposed revisions and updates will be hosted on the BIMMEP AUS website. Included within the BIMMEP AUS Master Shared Parameter Schedule is the revision number for each parameter and a table which lists the revision number to a specific release date. Version 6 is the first official release via the BIMMEP AUS website. 9.3 Non BIMMEP AUS Shared Parameters In general, these should be kept to an absolute minimum. Project Shared Parameters and Company Specific non BIMMEP AUS Shared Parameters can be added to families however where a defined parameter exists for variable this must be used noteing that the supply chain relies on consistent variable naming to operate reliably. 9.4 Shared Parameter File The Share Parameter file itself is a text file and this file will be issued along with the template file when downloaded by BIMMEP AUS subscribers. The shared Parameters get loaded into the Template file and then assigned to the applicable Revit categories. In addition to loading these shared parameters into the BIMMEP AUS Template, the parameters will also be loaded into the BIMMEP AUS Foundation Models so that that even when the BIMMEP AUS Template is not being used it will still be able to produce these type of schedules from the IFMs. BIMMEP AUS Page 18