1
BIM
Karin Anderson
BIM Manager
2
Source: McKinsey&Company, “How to boost productivity in construction”
Once a leader in innovation …
3
… construction is now a distant follower
1 Cumulative real growth in the United States, %, 1947-2010
Circa
1940s
Manufacturing Retail ConstructionAgriculture
Productivity
Growth1 760 699 61,512
Circa
2016
Source: McKinsey&Company, “How to boost productivity in construction”
4
https://www.weforum.org/agenda/2018/
06/construction-industry-future-
scenarios-labour-technology/
Building Information Modelling (BIM)
is at the centre of a digital
transformation of the construction
sector and the built environment.
BIM is here to stay
5
14 800 km state railway tracks
11 400 railway
switches
560 stations for
boarding
98 400 km
state roads
41 000 km municipal roads
76 100 km
state roads
20 000 - 21 000 bridges
(approx. 4000 railway bridges)
41 ferry lines
3 300 km external
railway tracks
The Swedish Transport Administration's facility
6
2015Base-level
BIM only in
Investments
2019-
2025Prerequisites
for initial level
of lifecycle
management
2023 ~>Lifecycle management of
assets is based on open
standards
Road-map
7
Extracts from the BIM strategy
• BIM is introduced into the Swedish Transport administration to help increase
productivity
• The asset information management uses an object oriented approach
• Tool neutral requirements based on open standards
• Harmonization of standards for BIM, CAD, GIS and PLM
• The information is traceable and of known quality throughout the life cycle of the asset
• Digital asset information is incorporated in the procurement process
8
Project repository
• Documentation
• Attibutes
• Graphics
• etc
Multiple systems for different purposes for
one national road asset
BIM – Information exchange and deliveries
• Local, proprietary platforms in the projects, ”BIM model”
• Object based storage in different AIM systems
Challenge
9
“Digital twin”
Common digital
facility for efficient
asset management
Management
of asset
information
Together, this contributes to a controlled information flow from concept to decommissioning
Established common
structure and hierarchy
• CoClass, nationalclassification system
• Breakdown hierarchy of assets
• Unique identifier for all asset objects
Identified and required
information needs
• Information requirements for different phases
• Level of detail, LOD
• Level of information, LOI
Standardised
information deliveries
and handover
• International standards (IFC, BCF, GML, ..)
• National standards
• Swedish transport administration specific standards
Prerequisites
Targets 2019
10
Ensure legal conditions for using and
managing digital information
Ensure that development and
application of BIM is in line with the
outside world.
Ensure the ability to apply BIM
Law, procurement and information security
Support, training and follow-up
Prerequisites
Research, development and external collaboration
Preconditioning measures and supporting functions
11
E4 The Stockholm bypassFor a growing region
Length: 21 km
Tunnel: 18 km
Travel time: 15 minutes
No. of lanes: 3 in each direction
Junctions: 6
Traffic 2035: 140,000 vehicles/day
Completion: about 10 years
Cost: EUR 3.4 billion (2018 prices)
2 million today
2,5 million 2030
Stockholm is growing
with approximately
100 people/day
12
Data from tunnel excavation
collected during production in a
structured database (“real-time”)
Tool specific“vendor neutral”
Exchange format
(dgn, dwg)
Drawings
Object oriented
CAD-layer requirements
(SB11+BSAB, 23)
As-built data delivered at hand
over
Shifting to models and data
E4 The Stockholm bypassFor a growing region
13
Better design documentsCoordination model
Technical ReviewQuality controlClash detectionQuantity take-offStrict coding
E4 The Stockholm bypassFor a growing region
14
Revised contract
Ref Description
0 Instructions to tenderers
1 Contract terms
2 Changes to Contract
3 General conditions
6 Special measurements
8 Supplementary instructions
9 Administrative instructions
10 Bill of Quantities
11 Technical descriptions
11.8 Primary Exchange modelsSpecification of infrastructure model
12 Drawings
13 Other information
Models as contract documents
• Design tools used
• File formats
• Issues with compatibility
• Object types
• Level of detail
• Level of information
• Status of content
Model + “Specification of infrastructure model”
E4 The Stockholm bypassFor a growing region
15
Models are Approved for
construction by Trafikverket
Models for construction
produced by ”design
and build” contractor
Models for construction in D&B contracts
16
The project has developed a data base ”tunneldok” for storing tunnel data during production,
this data is then used to follow up on progress and requirements.
Progress and compliance checking
17
• Level of detail in models – understanding of what is needed
• Lack of standards for classification and file-transfer for infrastructure objects
• Pubic client requirement to use vendor neutral CAD-formats
BIM – our challenges
18
BIM – our success factors
• High level of ambition from start
• Competent BIM support staff on site and regular training sessions for Trafikverket staff
• Common document management system for technical documents
• Being a mega project allows development and improvement of methods and processes
• High ranking of the object oriented models in the tender packages increases the
credibility and proves the level of ambition to the contractor
19
Karin AndersonBIM Manager – E4FS / Major investments
Mobile: +46 (0) 70-724 70 73
E-mail: [email protected]
LinkedIn: www.linkedin.com/in/karin-Anderson
…Thank you for
your attention!
20
Visualisation of traffic interchange at Kungens kurva
21
Visualisation of artworks
22
See and move around in the coordination model on a 65” screen
23
Models for Construction – Example – Tunnel wall elements
24
BIM in the field – challenging for all parties
25
Visualisation of planned work
FME
26
FME
Comparison between designed and as-built tunnel data
27
Visualisation before and after
28
Visualisation before and after
29
Example from meetings with business owners in
Kungens kurva shopping
30
Visualisation of design model and existing features
under ground
31
Visualisation of the tunnel artwork
32
Visualisation of a very complicated tunnel geometry
33Source: McKinsey&Company
“How to boost productivity in construction”
… with most construction companies continuing to underinvest in R&D and IT
34
Use of 3D Models in Design and Build Contracts – Civil Works
35
Use of 3D Models in Ordinary Contracts – Rock Tunneling Works
36
Use of 3D Models in Design and Build Contracts – Installation Works
37
E4 The Stockholm bypassFor a growing region
For some disciplines and construction
parts the contractor is to design. The
image shows a combination of both.
Models are in contract and describe the
requirements for setting out and construction
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