Building Information Modelling (BIM) Workshopciria.org/buildoffsite/pdf/taylor woodrow bim 6...
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11 May 2009 1 Building Information Modelling (BIM) Workshop 6 th April 2009 Department for Business and Enterprise’s Conference Centre Case Study 3 Information Model used on the Open ManuBuild System Platform Jeff Stephens [email protected] David Leonard [email protected]
Transcript of Building Information Modelling (BIM) Workshopciria.org/buildoffsite/pdf/taylor woodrow bim 6...
11 May 20091
Building Information Modelling (BIM) Workshop6th April 2009Department for Business and Enterprise’s Conference Centre
Case Study 3Information Model used on the Open ManuBuild System Platform
Jeff Stephens [email protected] Leonard [email protected]
11 May 20092
What is ManuBuild?
3 6th May 2009
ManuBuild Consortium
4 6th May 2009
ManuBuild Technical topics
Building system concepts
Architectural typology
Building templates
Smart components
Multi-functional integrated modules
Innovative connections and interfaces
Multi-functional materials
Business Models
New manufacturing technologies
Autonomous fixed factories
Flexible, mobile and autonomous factories
Logistics solutions
Rapid connection and assembly methods
ICT and other system architectures
Intelligent component catalogues
Design configuration, manufacturing configuration and sales office tools
Logistics, management & assembly and monitoring tools
Training and simulation
11 May 20095
ICT tools and services
6 6th May 2009
Simplified Demonstration Process
7 6th May 2009
ManuBuild configurators
ManuBuild Configurator
Building Templates
(early design)
Design Configurator
Sales Configurator
Manufacturing Configurator
Manufacturing Configurator
Manufacturing Configurator
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3
Building Configuration
(Customer options)
Product informationIncl. design constraints
Building Component information
(various sources)
Building LogisticsData passed on:
1: Building design in the form of drawings, 2D and 3D CAD files
2: Design details, options parameters and their acceptable values, 3D models, dwelling unit model
3: Architectural spaces, configurations, component and performance specifications
4: Parts list, component information
Sales Person/
Customer
Manufacturer/Supplier
Template/Building Designer
Configurators in the ManuBuild business process scenario
Manufacturing configurator
Design configurator
Sales configurator
Supply chain management and assembly
planning
Building component information
Building templates
8 6th May 2009
Demonstration Process Diagramusing Business Process Modelling Notation
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Creating a Catalogue Item: Shower Unit
Create GDL catalogue itemExport GDL catalogue item to PMO View PMO model using PMO-Viewer
10 6th May 2009
Create catalogue itemProcess
11 6th May 2009
Create catalogue itemSelect corresponding GDL objects
12 6th May 2009
Create catalogue itemparameter list - tray
13 6th May 2009
Create catalogue itemparameter list - enclosure
14 6th May 2009
Create catalogue itemSimplified parameter list - tray
15 6th May 2009
Create catalogue itemSimplified parameter list - enclosure
16 6th May 2009
Create catalogue itemSimplify GDL script, convert to PMO,
17 6th May 2009
Create catalogue itemAdd other parameters and combine scripts & test
18 6th May 2009
Create catalogue itemSelect default colours
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Catalogue Server
Upload to catalogue ServerSearch for component in Catalogue ServerOverview of other catalogue server services
20 6th May 2009
Catalogue Server:Searching catalogue
21 6th May 2009
Catalogue Server:Uploading catalogue
22 6th May 2009
Catalogue Server:Services available
23 6th May 2009
Catalogue Server:Browsing catalogue
24 6th May 2009
Catalogue Server:Browsing catalogue
25 6th May 2009
Catalogue Server:Browsing catalogue
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Accessing catalogue information using Manufacturing Configurator
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Create Architectural Model using the Design Configurator
28 6th May 2009
Creation of the Architectural Building Model Design Configurator - Process
29 6th May 2009
Apartment Building
30 6th May 2009
Building Template created from a CAD model
31 6th May 2009
Adding rules to a Building Template
32 6th May 2009
Checking the rules:a constrained internal wall being moved
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Create manufactured solution using theManufacturing Configurator
Corus: Corner supported volumetric units
34 6th May 2009
Create Manufactured SolutionProcess
35 6th May 2009
Creation of dwelling templatesLight steel wall panel
36 6th May 2009
Creation of dwelling templatesLight steel floor panel
37 6th May 2009
Creation of dwelling templates8 post module
38 6th May 2009
Creation of dwelling templates8 post corner supported module
39 6th May 2009
Creation of dwelling templatesOne bed dwelling – 2 modules
40 6th May 2009
Creation of dwelling templatesOne bed dwelling – 3 modules
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Creation of dwelling templatesTwo bed duplex dwelling – 4 modules
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Architectural Building Model
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Create manufactured solution using theManufacturing Configurator
Mostostal: Fibre Reinforced Polymer partitions
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Architectural Building Model2 Bedroom Dwelling
45 6th May 2009
Architectural Building Model1 Bedroom Dwelling
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Light steel wall manufacturer – Corus1 Bedroom Dwelling
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Light steel wall manufacturer – Corus2 Bedroom Dwelling
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GRP wall manufacturer - Mostostal1 Bedroom Dwelling
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GRP wall manufacturer - Mostostal2 Bedroom Dwelling
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Demonstration Building
Use of the Corus ManuBuild building system for medium rise residential projects
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Proposed site of development
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Apartments in the development scheme
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Apartments in the development scheme
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Apartments within the development
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Apartments broken down into Volumetric Modules
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3 Module Apartment
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Typical Hallway Module
58 6th May 2009
Contractors Construction Sequence –Install Volumetric Modules
59 6th May 2009
Construction Sequence: Apartment modules installed
60 6th May 2009
Linking Logistics data
61 6th May 2009
Progress monitoring using the Enterprixe Explorer Client
62 6th May 2009
Project details
959 modules- 211 apartments [44 variants]- 584 open sided volumetric modules [117 variants ignoring customisation] (generally 2 per trailer)- 187 roof panels [32 variants] (up to 8 per trailer depending on sizes for stacking)- Corridor roof panels (possibly 8 per trailer)- 140 corridor floor panels [25 variants] (possibly 8 per trailer)- 48 balcony units [12 variants] (possibly 8 per trailer)- Manufactured on Deeside in North Wales
Congested site- Suburban South London- 2 unloading bays- Local secure holding area
10 week assembly period- 20 modules per day to avoid weekend working- 2 per hour for a 10 hour day- Could be 10 trailers to unload per day (20 truck movements)- Restricted STGO-Cat1 truck movements (07h30 ~10h00, 16h00~19h00)- At least 20 trailers in use at any time
Current manufacturing rate of 10 modules per day- Buffer stocks required - Module manufacturing might have to start 10 weeks before start of site assembly
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Lessons learnt
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Lessons: Architectural Design
Controlling the number of variants of manufactured modular parts is a challenge for designers.
But, too much standardisation produces boring buildings.
Corner areas are difficult to modularise especially where the corners are not at 90 degrees.
System suppliers need to consider reference arrangements for corners areas.
Ideally, the system for construction should be identified for the early design for planning application so that the design can exploit the positive attributes of the proposed system.
The structural philosophy, assembly method, transportation and lifting considerations have to be understood by the architect.
Strategic decisions have to be made early in the process. Leaving decisions site workers is not an option.
Effective off-site-manufacturing requires 10 times more information than that required for in-situ construction and that information is required early in the process.
Many architects are not familiar with the disciplined ways of working demanded by off-site-manufacturing- Much architectural design work has to be re-done by the contractor and manufacturers.
ManuBuild defined effective ways for using the various levels of technical information from design through to assembly.
There is a need for Design For Manufacture and Assembly (DFMA) iterations involving the architectural designers, contractors and manufacturers.
Care is required to create naming conventions to help interoperability down the information chain.
Corner supported modules have architectural benefits.
The benefits of off-site-manufacturing are not being realised with the results being similar to conventional construction in terms of cost and time.
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Lessons: Manufacturing
Manufacturing plants require serious investment in the order of £5 million+.
Choosing a manufacturer early has benefits but also includes big risks.
Manufacturers are line-of-balance process driven and construction projects are one-off project driven. Manufacturers need to keep their manufacturing assets busy which means that they will be juggling the bidding, design, planning and production of a number of projects simultaneously.
The scope for production runs of identical modules is limited.
Production rates for manufacturing for individual projects are likely to be less than the site assembly rate. This limits the scope for late customisation and requires more finance.
There needs to be an effective exchange of technical information between contractors, manufacturers and contractors.
ManuBuild explored economies of scale. It was noted that after 1000 units per year, the rate of increase in benefit to unit cost reduced. However , at the higher rates of production the discounts from component and material suppliers increases.
- Suppliers need to deliver on trucks loaded to their maximum capacity. - Suppliers and customers need to automate their trading systems and to plan production together. - Suppliers need to invest in production methods to meet customer needs. - (Deep discounting requires reduced risk, trust, business confidence and possibly national agreements across the
supply chain.)
Off site manufacturing still appears to be more expensive than in-situ construction.
Final customers do not want to take risks on their projects.
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Lessons: Logistics and Assembly
Volumetric modules can be very fast to assemble on site. One every 30 minutes is feasible.
Fast rates of site assembly need the methods and logistics to be worked out meticulously.
Careful detailing reduces localised damage.
Assembly sequences need to be 100% complete and 100% accurate. This requires much more detail than is traditionally included on construction project programmes.
Adding programme detail is very boring and requires skill. Better software tools are required.
The construction friendly logistics solutions already exist.
The access required during module assembly needs to be fast to adjust for a rapidly changing building. Mast climbing platforms are ideal for this. However, cladding sub-contractors are not keen on this method and prefer conventional scaffolding because they work on at least three levels simultaneously.
Fast assembly requires close collaboration between contractor, manufacturer and transportation contractors.
Much more discipline is required from both companies and individual workers.
Information used by the site people needs to be complete, accessible and very easy to use.
Training for supervisors and operatives is definitely needed.
