Punching reinforcement system
for pile-supported slabs
Speeds up infrastructure
construction and
increases efficiency
The Kirismäki interchange, which is a part of the E18 Turku ring road
improvement project, is a pilot site where Peikko's PSB® Punching
Reinforcement System was used for the first time in a road's pilesupported
slab structure to strengthen the connection points of
foundation piles and concrete slab.
Road network and the related
intersection construction projects
are often huge in size, and their
construction may take years. That
is why technical solutions that speed up the
construction and improve cost-efficiency are
very welcome.
In Finland, the European road E18 goes
through the whole of Southern Finland, in
the east from the vicinity of the Russian
border to Turku on the west coast of Finland.
On the ring road passing Turku, traffic flow
will be improved when one section of the
road is constructed to have four lanes in
Finnish Transport Infrastructure Agency's
road improvement project. At-grade
intersections will be eliminated and
replaced by an overbridge at Kirismäki
interchange improvement.
NEW SOLUTIONS FOR THE
NEEDS OF INFRASTRUCTURE
CONSTRUCTION
Peikko proposed a totally new kind of
a solution for the pile-supported slab
to the Finnish Transport Infrastructure
Agency. The starting point was to establish
how the ETA approved PSB® Punching
Reinforcement System, which has long been
used in building construction, could simplify
the strengthening of the roadbed's pilesupported
slab.
After preparing the design criteria,
a trial use permit was received for the
structure, and the Kirismäki interchange
was selected as the pilot site. The solution
was implemented together with the Finnish
Transport Infrastructure Agency, WSP
Finland, who were responsible for designing
the pile-supported slab structure, and Destia
as the main contractor.
"Peikko wants to be a significant supplier
of fastening and connection technology for
infrastructure projects. New innovations are
sought, both by applying solutions that are
familiar in building construction, as well as
by developing completely new solutions.
The development work is most fruitful
when it is performed in close cooperation
between the developer, designers, and
constructors," says Topi Laiho, Business
Manager for Peikko's infrastructure
construction.
REFERENCES
24 PEIKKO CONNECTIONS 1/2021