147
Category 4: Special Projects
4
Scaffold for the construction of the Dong Hejre Jacket - Vlissingen, The Netherlands
SE
Owner
Dong Energy
General Contractor
Heerema Fabrication Group
Engineering Office
Altrad Balliauw
Construction Period 06/2013 - 03/2014
The Hejre jacket construction was assembled on the Heerema yard and
was 93 m long, 60 m wide and 45 m high. In order that
work could be
carried out safely at a height
and to give protection against wind and
rain, scaffolds had to be erected. Due to the complexity of the scaffolds
(height, cladding and several clashes with the jacket), the project lead
time and the fabrication sequence, it was necessary to
design each
complex scaffold
in advance.
The jacket construction (dwg file) was
imported into SCIA Engineer
,
enabling us to design the scaffolds in detail. Furthermore, after joining
the first pair of rows, this box structure, including 10 scaffolds, had to
be moved. Consequently, we had to design and carry out a
2nd order
calculation
for 38 complex scaffolds with SCIA Engineer using the
scaffolding module
. Because we designed the scaffolds in advance
and due to the complexity of the structure, the builders had to erect the
scaffolding using a detailed plan. These were made in SCIA Engineer
“
paperspace
”, with the positions set by a surveyor.
After our
detailed design and calculation
, we proposed some
adjustments to the fabrication sequence and added some temporary
steel for the stability of the scaffolds, due to the high wind loads on the
cladding. Thanks to this working method the scaffolds were erected as
quickly, economically and safely as possible
.
Altrad Balliauw
Contact
Astrid Schaut
Address Aven Ackers 10
9130 Verrebroek, Belgium
Website
Altrad Balliauw
, established in 1976, is a respected name in industry and
in the construction sector in Benelux and is part of the large French Altrad
Group. Altrad Balliauw is active in
scaffolding, industrial insulation
and asbestos removal
. Its industrial activities are mainly focused on
the energy sector, (petro) chemicals, metallurgy, construction, food and
pharmaceuticals.
The Altrad Balliauw engineering department designs and performs the
calculations for each complex scaffold in advance, for
maximum safety,
stability and efficiency
.
