A consultants workflow Case study Introduction Revit was first - PowerPoint PPT Presentation

To us, It’s more than just work. A consultants workflow – Case study

Introduction • Revit was first used at WGE Melbourne office in 2008. • A project at Tullamarine Airport to re-route ductwork around an upgraded baggage conveyor was a catalyst for the early adoption of Revit. • The project produced good coordination prospects for future jobs and the experience allowed a strategy to be put in place for implementation. It would take a further 3 years of persistence and hard work to develop the workflows, families and templates.

Team Structure & Workflows • Set up to encourage traditional draftees to up skill their engineering capabilities and for graduate engineers to become BIM proficient from day one. • MEP templates automate the set up of projects • Integration of engineering design within Revit. • Delivering Revit models and documentation to the required level of development (LOD).

• In-house Revit workgroup and development team • Standardisation of parameters across all national WGE offices. • We share our models (with a disclaimer).

Key Issues • Lack of Industry workflows and standards. • Lack of good manufacturers content suitable for the Australian construction industry. • Bastardising models with cocktail of in-house created templates and families and those available from manufacturers websites or others. • No consistency of CONTENT, SHARED PARAMETERS hence WORKFLOWS.

Key Issues • Time and effort creating generic and manufacturer families. • Time and effort for little appreciation from contractors without modelling capabilities. • Over detailing and really only pleasing architectural aesthetics. • Overall effect on productivity and profitability with respect to over detailing.

Possible Solutions Snapshot • Industry Workflows Natspec BIM • Industry Standards BIM MEPAus, ANZRS • Manufacturer BIM MEPAus Content (Aust , NZ) • Collaboration Sharing content

Workflow - Case Study • Project Name Regional Hospital Redevelopment • BIM Management MEP Design, Visualisation, Plan Deliverables Clash Detection • Mechanical Contractor / Model Author (MDS)

Workflow - Case Study • Revit 2013 – WGE and MDS Authoring Tool • Template used WGE template cross-bred with BMA. WGE MDS template cross-bred with BMA MDS • Coordination Tool Navisworks Manage 2013

WGE - Designing with BMA • WGE template was cross bred with the BMA template to take advantage of industry standard: • Ductwork fittings, accessories and duct systems • Pipework fittings, accessories and piping systems • Insulation and lining • Annotation • Manufacturer content • Schedules

WGE - Designing with BMA • Documenting with the BMA content: • Generally well defined Duct systems and Pipe systems. • Lack of manufacturer content 2 years ago. • Good view templates, but needed some modifications. • Impact on productivity did not really factor in the design documentation at the time.

From the Contractor

From the Contractor • WGE model had well set-up family information within • MDS use an in-house created template cross-bred with BIMMEPAus for production of workshop documentation • MDS used the WGE modelled information as a basis for their workshop documentation • WGE did not model existing services. MDS modelled these including existing structure.

From the Contractor • The design structural steel model was used well into MDS documentation and modifications to the shop model were required once the ‘workshop’ steel model was made available. • Fittings/accessories in the WGE model were replaced with MDS content to provide ‘constructible’ details e.g. step- in’s at duct fitting, annotation etc. • Equipment models/families in the WGE model were replaced with approved contractor alternate make/models. Some selected equipment needed to be modelled from scratch.

From the Contractor • Pipework within the WGE model was indicative and valves not shown on pipework. • Equipment families require ‘shared parameters’ to allow automatic scheduling within Revit. • Coordination clashes between mechanical, electrical, hydraulic and fire were evident within the WGE model. Other trades did not provide ‘workshop’ documentation to allow further coordination.

Navisworks Model Comparison

Advantages of Workflow • Good design = Minimal rework

Advantages of Workflow • Design to Shop drawings to As-Built is a proven virtual reality workflow.

Advantages of Workflow • RFI’s

Advantages of Workflow • Reviewing shop drawings

BMA Template Wish list • Generic families for Engineering consultants. • To issue the parameter text file. • Schedules to be included in the template. • Multi-discipline template • Workflow to allow for 3D scanned models. • Engineering view templates to verify design. • Content add-in for Revit

BMA Template Wish list • Operations enabled parameters such as COBie or similar. • Navisworks appearance profile file. • Better feedback response time. Set up a template forum on the BMA web site. BMA may consider setting up a LinkedIn group and even a twitter account for live feedback.

Overall Experience - Summary • The template provided the necessary mechanical duct and piping systems with associated fittings and accessories which saved some time. • The template at the time did not have enough manufacturer content. • The consultant to contractor workflow was one way and the contractor was able to use WGE model.

Overall Experience - Summary • RFI’s raised using revit models and images were a bonus with the advantage of processing them faster in comparison to traditional workflows. • Clients are starting to nominate the use of the BMA template. • BMA template in its current form has better developed families and manufacturer content.