This document summarizes the use of building information modeling (BIM) on the Crusell Bridge project in Finland. It discusses how BIM was used extensively during construction for fabrication, supply chain management, formwork and temporary structure design, quality control via laser scanning, and 4D construction planning animation. It also describes how BIM supported lean construction practices like production management using the Last Planner System. The project teams' openness to using new BIM and management techniques provided learning opportunities that helped ensure project success.

1. BIM Handbook 2nd Ed. p.494-513
CHUCK EASTMAN | PAUL TEICHOLZ |
RAFAEL SACKS | KATHLEEN LISTON
CRUSELL BRIDGE
A Building Model Supports a Wide Variety of
Information, Uses of BIM in the Construction Stage
Hanifah Nebrian Sukma | 201183530

2. Sitemap
Contents of the presentation
• Introduction
• BIM Learning Experience
• Interoperability
• Model Synchronization
• BIM Use in the Construction Phase
• BIM Lessons Learned
• Summary
Picture: BIM HandBook & http://bit.ly/uu7uxF 1/22

3. Introduction
Crusell Bridge Data: Type & Location
• Type: cable-stayed bridge
• Consist of two asymmetrical cable-stayed spans: measuring 92 m and 51.5 m
(the total length is 143.5 m)
• Connects the western edge of Jätkasaari with Ruoholahti, Finlandia
Picture: http://bit.ly/rN7656 2/22

4. Introduction
Crusell Bridge Data: Project Teams & Timeline
Project team and basic data:
Project timeline:
Picture: BIM HandBook 3/22

5. Introduction
Crusell Bridge Data: Background
• The Crusell Bridge becomes the most prominent bridge in Finland to be
designed and built using BIM (Building Information Model)
• The design is solicited by the owner in a design competition announced in the
winter of 2001
Picture: http://bit.ly/tbIVKG 4/22

6. Introduction
Crusell Bridge Data: Background
• The competition aimed to find a quality bridge solution that would bring out
the characteristics of the area and take into account the requirements of the
landscape
• Although a British design firm win the competition, the project is awarded to
the second place winner: WSP Finland
Picture: http://bit.ly/s3ub83 5/22

7. Introduction
Crusell Bridge Data: The Use of BIM
• During the design and construction process,the project team implementing
both BIM technologies and lean construction principles and tools
Picture: http://bit.ly/t3zjlw 6/22

8. Introduction
Crusell Bridge Data: The Use of BIM
• This case study focuses on the
construction stage of the project,
highlighting two aspects:
1. The extensive use made of the BIM:
- For fabrication of steel girders and
concrete reinforcement
- For monitoring and management of
the supply chain of fabricated
components
- For formwork and temporary support
structure design
- For quality control using laser
scanning, and
- For construction planning using 4D
animation;
2. The ways in which BIM supported lean
construction practices, such as its support
of production management onsite using
the Last Planner System™.
Picture: http://bit.ly/shKKdS 7/22

9. BIM Learning Experience
A Building Model Supports a Wide Variety of Information, Uses of BIM in the Construction Stage
• The Crusell Bridge project becomes a BIM learning process for everybody
involved, even for those who had previous experience using BIM, because
many new solutions and techniques were tried
• For the client (City of Helsinki’s public works department), it was first
bridge project using comprehensive BIM, including time and management
dimensions
Picture: http://bit.ly/uHuzoU 8/22

10. BIM Learning Experience
A Building Model Supports a Wide Variety of Information, Uses of BIM in the Construction Stage
• For the designer (WSP Finland) that had
modeled simpler reinforced concrete
bridges previously; this bridge with its
curved geometry, cable-stays, and
composite structural steel and reinforced
concrete structure, is significantly more
complex than what they had experienced
previously
• For the contractor (Skanska) this project as
well was the first bridge modeling, using
Tekla Structures and made a strategic
decision to use a model in the construction
stage as much as possible, including 4D
planning and modeling temporary
structures
• Due to the pioneering nature of the use of
BIM on a highly sophisticated bridge, the
main BIM software provider to the
project, Tekla Corporation, is also involved
Picture: http://bit.ly/rCZ09A 9/22

11. Interoperability
BIM Application Used for Construction Phase
Application Developer Purpose
Tekla Structures v13 Tekla Basic use onsite—viewing of
the model, quantity Surveying
Tekla Structures v15 Tekla 4D simulations and temporary
structures
PERICad Peri Modeling formworks
Reinforcement List v3.1 CELCA Steel service (reinforcement)
Trimble RealWorks Trimble Comparing surveying results to
design
Vico Control Vico Software Preparing master schedule
Source: BIM HandBook 10/22

12. Interoperability
Information Exchange through File Transfer
Picture: http://bit.ly/t3zjlw 11/22

13. Model Synchronization
Synchronization Procedures
• Synchronization required not only a technological solution but also a
management protocol, agreed to by all parties, that stated who was
allowed to edit what and when
Picture: http://bit.ly/t3zjlw 12/ 2

14. BIM Use in the Construction Phase
Visualization
• The Crusell Bridge is not an extremely large project, but has an interesting
design and makes excellent use of BIM for a number of construction
purposes
• The 3D model of the project helps different parties to better understand
the concept and especially the details of the design, forming a common
mental picture and understanding far more quickly and effectively than
with traditional drawings
Picture: BIM HandBook 13/22

15. BIM Use in the Construction Phase
Design and Planning of Temporary Structures
• The site team decided to thoroughly model all the missing temporary
structures, including formwork shoring towers and the site tower crane on
its tracks, directly in the design building model maintained onsite
• This provided a better understanding of the structures, enabled
identification of numerous collisions (clashes), extraction of accurate
quantities, incorporation of these works into construction schedules, and
visualization of their sequencing during 4D planning
Picture: http://bit.ly/t3zjlw 14/ 2

16. BIM Use in the Construction Phase
Clash Detection
• Clash detection was done not only at the end of the design phase between
steel and concrete parts, but also in the construction phase, incorporating
additional systems and the temporary structures and formwork
• Many clashes in the bridge structure that might only have arisen during
construction were prevented
• This BIM functionality save a large amount of money and prevent many
problems
Example of a clash detected between a cable anchor and formwork ties and its resolution
Picture: BIM HandBook 15/22

17. BIM Use in the Construction Phase
Construction Planning and 4D
• The 4D video animations of the schedule were done at the resolution of a
single day
• Thus the team could generate daily visualizations of the project, which
enabled assessment whether the decisions made during the reverse phase
scheduling stage of the Last Planner System™ (LPS) meetings were realistic
in terms of their use of space
• The animations also gave everybody a better understanding of which works
they were agreeing to execute
Picture: BIM HandBook 16/22

18. BIM Use in the Construction Phase
Fabrication and Installation of Structural Steel Components
• Ruukki reviewed and edited the components in the model as needed to suit
their fabrication constraints, and then sent the updated model back to the
structural designers at WSP and to Skanska for approval
• WSP then edited the structural steel components in its own
model, incorporating Ruukki’s comments, and updated the server model
for all other participants
Picture: http://bit.ly/uOHVKL 17/22

19. BIM Use in the Construction Phase
Rebar Detailing, Fabrication, and Installation
• Modeling the bridge
reinforcement turn out to
be more difficult than
was anticipated
• Bridges of this type
(cable stayed) have a
high density of
reinforcement and
complex deck and
abutment shapes, which
makes the modeling more
difficult and time
consuming than for
simpler structures
• Tekla Structures provides
rebar material takeoffs in
ASCII, EXCEL, and other
file formats
Picture: BIM HandBook 18/22

20. BIM Use in the Construction Phase
Laser Scanning
• Skanska employ a surveyor onsite whose task was mainly to control the
quality of the work and to assist the trade contractors with positioning
• Skanska purchase a machine named Trimble® VX™ Spatial Station for use
onsite to capture coordinates, take images, and combine them
Picture: BIM HandBook 19/22

21. BIM Use in the Construction Phase
BIM Suport for Last Planner System™
• Skanska had used the Last Planner System™ (LPS) in their projects for three
years before the Crusell Bridge project, and have their own specialists who
train site crews to use it
• LPS has two main focuses:
1. Reliable short-term planning,
2. Creation and development of a social system onsite.
Picture: http://bit.ly/tGhb4E & http://bit.ly/t7v8wM 20/22

22. BIM Lessons Learned
A Building Model Supports a Wide Variety of Information, Uses of BIM in the Construction Stage
• Plan using BIM and LPS from the very beginning of the project
• Use the model to complement construction management techniques
• Use the model synchronization feature to achieve fast information exchanges
• Model temporary structures gives a better understanding
• Import laser scanning point clouds into the model to check locations and work
quality is highly effective
• Use the model for visualization during LPS planning meeting to improve
understanding of the product and the process
• Involve project partners from outside the site as well as site teams
• Ensure participants are commit to upgrade their software tools simultaneously
Source: BIM HandBook 21/22

23. Summary
A Building Model Supports a Wide Variety of Information, Uses of BIM in the Construction Stage
• The case clearly illustrates how BIM can be used in a bridge project
• The teams’ willingness and openness to using BIM and new management
methods (LPS) gave all of the parties the opportunity to experience and
learn from their own failures as well as from their successes
Picture: http://4sq.com/tZ1ifQ 22/22

24. 감사합니다
If only one book were to be written
about BIM, it might have “DON’T
PANIC” printed in large uppercase
letters on the front cover.
~ Peter Zyskowski, Director of
Technical Services & BIM Consultant
at Applied Software
Picture: http://4sq.com/tZ1ifQ (Quote taken from http://bit.ly/uMbWo6)