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1 Movable scaffolding systems underslung page 6, 7
2 Movable scaffolding systems overhead page 8, 9
3 Mobile concreting carriages for balanced cantilevering page 10, 11
4 Falsework for piers page 15, 16, 185 Scaffolding towers MTP100 page 15, 17, 18
6 Scaffolding DOKA page 15, 17, 18
7 Cornice form traveller page 15, 18
8 Skanska posttensioning system page 20, 21
9 Heavy lifting page 22, 23
10 Pile load test page 25
11 Steel retaining system for motorways page 28, 29, 30, 31
12 Bridge expansion joints page 28, 29, 35
13 Noise protection barriers on bridges and walls page 28, 29, 36, 37
14 Traffic sign gantries page 28, 29, 38, 39
Captions
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Contents
Contacts 4
Movable scaffolding systems (MSS) 5
MSS underslung 6
MSS overhead 8
Mobile concreting carriages for balanced cantilevering 10
Form traveller for slab on steel composite bridges 12
Rental facilities 14
Rental of scaffolding, formwork, gantry and tower cranes 15
Prestressing 19
Skanska posttensioning system 20
Heavy lifting 22
Electronically controlled lifting up to 4000 tonnes 24
Pile loading test 25
Production of dry mixture for polymer
mortar and concrete 26
Steel construction workshop 27
Steel constructions 28
Steel retaining system for motorways 30
Anchor component for crash barriers 31
Skanska steel bridge handrail 32
Universal bridge handrails 34
Bridge expansion joints 35
Noise protection barriers on bridges and walls 36
Traffic sign gantries 38
Fabrication of suspension strands 40
Reference 41
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Bridges and Bridge Technologies4
Contacts
Branch Company DirectorIng. Frantiek [email protected]+420 737 257 229
Production and Technical Manager
Ing. Vladimr [email protected]+420 737 257 199
Branch Controlling Manager
Ing. Andrea [email protected]+420 731 535 455
Bidding Team Leader
Ing. Miroslav [email protected]+420 737 257 211
Senior Technologist
Ing. Jan [email protected]+420 737 257 193
Chief Project EngineerIng. Peter [email protected]+420 737 257 249
Unit Manager PrahaIng. Ji Machlek
[email protected]+420 737 257 227
Unit Manager OlomoucIng. Martin [email protected]+420 737 257 263
Unit Manager R4 KoiceJi Novk
[email protected]+420 737 257 244
Unit Manager for Special TechnologyIng. Zdenk [email protected]+420 737 255 714
PostTensioningIng. Jan Peka
[email protected]+420 737 257 247
Steel ConstructionsJosef Miek
[email protected]+420 737 257 231
Movable Scaffolding Systems Ing.Ji Krampla
[email protected]+420 737 256 955
Rental FacilitiesFrantiek [email protected]+420 737 257 225
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Movable Scaffolding
Systems (MSS)
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Bridges and Bridge Technologies6
MSS Underslung (2 sets in service)
MSS beam is situated under concreted bridge structure.
Maximum bridge deck width 16.5 m
Maximum bridge span 45.0 m
Minimum bridge clearance above the terrain 6.0 m
MSS is used for span by span construction of continuous beams. Economically effective use is
for viaducts with length of up to 250 m.
For MSS the great speed of the construction process is characteristic since it usually takes11 days for completing each span. Both MSS girders are supported directly on bridge piersor on pier foundations. It makes MSS independent of geological and terrain conditionsand allows for surmounting a variety of natural and man-made obstacles underthe bridge.
Underslung MSS is especially suitable for single beam bridge structures with either a linearor cranked bottom line. MSS superstructure consists of two steel box girders, placedunder the bridge superstructure and supported by triangle brackets, fixed to both sidesof the bridge pier column. On the brackets are launching wagons with hydraulic equipment
for vertical and horizontal MSS axis adjustment. Formwork for bridge beam and for sidecantilevers is fixed to MSS beams and real adjustment of bridge beam geometry is realisedby mechanical screw jacks. No other formwork operations are necessary before, duringand after launching MSS into the next span which speeds up the work procedures.
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MSS beam is situated above concreted bridge structure.
Maximum bridge deck width 14.5 m
Maximum bridge span 45.0 m
Minimum bridge clearance above terrain 5.5 m
Minimum bridge local clearance * 1.5 m
* street clearance, other local obstacles
MSS Overhead is suited especially for double beam bridge structures with either a linearor cranked bottom line. MSS superstructure consists of one steel box girder, placed abovethe bridge deck and supported by a steel frame, standing on the pier head and penetratingthe bridge slab. Transversally to MSS girder there are steel brackets, on which the bridgeformwork is suspended by thread rods. Formwork geometry is horizontally adjusted bythe transverse position of the rods and vertically by their length. At the front end of MSSis suspended the prestressing platform, from which the strands are pulled into cable ductsand cables are tensioned by jacks after concrete has hardened.
More than 10 km of bridge structures have been built since the first set of MSS was putin operation in 2001. The most challenging was the construction of the cable stay bridgespanning the Odra River, with the main span of 105 m. This project documented a greatadaptability of MSS for building structures the parameters of which do not fit basic MSS data.
MSS Overhead (2 sets in service)
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Bridges and Bridge Technologies10
Equipment for balanced cantilever method Mobile concreting carriages (MCC)
Skanska owns 1 pair of MCC used for building the first bridge across the Orava river, and 3 pairsof BB used for building by which the cable stay bridge in Povazska Bystrica. MCC is specialisedequipment for building bridges by means of in situ cast segments starting symmetricallyfrom the pier to the centre of the span where the adjacent ends of next-door cantileversare connected by concreting of the closing segment. MCC are adaptable for any box girderbridge with respect to data below:
Type of MCC max bridge width segment length segment weight
MCC Orava 14.00 m 4.80 m 180 tMCC Povazska Bystrica 30.40 m 4.90 m 360 t
Cantilevering is a suitable method for building bridges crossing deep valleys or rivers by long
spans, where other known technologies have their limits. Skanska has become an experienced
contractor building these bridges in the Czech and Slovak Republics and in Poland.
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Povsk Bystrica Orava
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Form Traveller (FT) for concreting bridge deck oncomposite bridges
Type of Traveller Concreted section Transverse distance Side cantilever
FT length (m) length (m) of bridge beams (m) length (m)Pier FT 32.4 19.1 31.0 6.0 9.0 2.5 3.5Span FT 20.4 16.0 16.5 6.0 9.0 2.5 3.5
FT is equipment used specially for concreting the bridge deck on composite bridges of steeland concrete type. Usually, pier sections of the deck are concreted first and, after the concrete
has hardened, the central sections are completed. Therefore two types of FT are in use pierFT and span FT. They are designed for bridges with spans of up to 45m but can be modifiedfor shorter or longer spans if needed.Two longitudinal beams are of steel truss construction while I profiles are used as transversebeams on which formwork panels (FW) are suspended by thread bars. After the concrete slabhas hardened, formwork panels are loosened and the FT is longitudinally launched in furtherposition by use of hydraulic cylinders. Supporting blocks with sliding bearings are weldedto the upper flange of bridge girders and protrude above the deck surface. External FW (underside cantilevers) is launched together with FT while internal FW (panels between bridge steelgirders) is launched independently on rails welded to the bridge girder webs.
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Rental facilitiesBridges and bridge technologies14
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Rental of formwork, scaffolding,portal and tower cranes
Equipment to rent:
- traditional scaffolding towers MTP100, rolled profiles I 1000, 500, 450, 340, U 220;
- components ofDOKA and HNNEBECK systems;
- gantry cranes with the lift capacity of 63t, 32t, and gantry girders
- tower cranes Liebherr 32TT;
- wheel universal manipulators Manitou MRT 2150 with accessories;
- miscellaneous mechanical equipment.
The Rental Centre provides complete service and maintenance of the foregoingequipment and consultancy for internal as well as external clients regarding the choiceof suitable formwork and scaffolding.
Address: Vinohradsk 88, 618 00, Brno-ernovice, CZ.
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Rental equipment in stock
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Quantity of supports and formworks
Component Quantity Use
Support tower MTP 100 35 000 m3 Classic bridge scaffolding
Support frame DOKA d2, Staxo 20 000 m3 Classic scaffolding bridge, ceiling
Tabular formwork DOKA and HNNEBECK 5 300 m2 Wall, pier, abutment, ceiling
Tabular formwork DOKA H20 25 000 m2 Wall, pier, abutment, ceiling
Steel system beam 2xU100 3 300 m Bearing formwork member
Timber beam H20 (I profile) 6 900 m Bearing formwork memberRolled steel beam I 1000 340 m Supporting formwork grid
Rolled steel beam I 500 8 000 m Supporting formwork grid
Rolled steel beam I 450 2600 m Supporting formwork grid
Rolled steel beam HEA 450 1 000 m Supporting formwork grid
Rolled steel beam I 340 3 00 m Supporting formwork grid
Single pipe support TP 250 ton 54 m Heavy load supports
Single pipe support TP 400 ton 108 m Heavy load supports
Gantry girder MJD S and MJD SS 1 580 m Supporting grid, temporary bridging
Cornice form traveller DOKA 135 m Bridge cornice
Cantilever FW supports DOKA 328 m Formwork under bridge side cantilever
Handy FW panels DOKA MF240 320 m2
Formwork of walls, piers
Rental equipment in stock
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Prestressing
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Skanska Post-Tensioning System
Hydraulic jacks PaulMaximum
acting force Stroke mm Strand pcs Quantity
PAUL 9750 kN 9750 kN 300 36, 37 2PAUL 4800 kN 4800 kN 300 18, 19 9PAUL 3000 kN 3000 kN 250 12, 13 9PAUL 1700 kN 1700 kN 250 7 5PAUL 850 kN 850 kN 250 4 5PAUL 650 kN 650 kN 200 3 6PAUL 250 kN 250 kN 250 1 3
The Skanska Post-Tensioning system is CE certified and comprises all partsand components necessary for installation of cable ducts, tendons, and anchoringand coupling of tendons made of 1 to 37 strands measuring15.5 (15.7) mm in diameter,and the strength of up to 1800 MPa. In a cylindrical anchoring plate, each strandis anchored by an individual conical wedge. For internal cables, steel corrugatedducts are used and tendons are grouted by cement mortar for corrosion protectionand cohesion. For external cables, polyethylene ducts are used along with cement groutas corrosion protection.
The system complies with the Czech standard SN P 74 2871. Its technical specifications
are in compliance with Article 4.4.- Anchoring, of Czech Government Regulation
No. 178/1997 Coll. , and with Decision No. 29/2006 of the Czech Office for Standards,
Metrology and Testing, dated of 30 August 2006. Furthermore, the system complies
with the requirements of Council Directive No. 89/106 EES and ETAG 013 Guideline,
and with Czech Government Regulation No. 163/2002 Coll. and Act No. 205/2002 Coll.
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Equipment for heavy lifting
Hydraulic cylinder(70 MPa pressure)
Capacity(ton)
Stroke(mm)
External(diameter mm)
Length(mm)
Quantity(pieces)
Hollow(diameter mm)
Europress 100 t 100 100 220 240 2 80Europress 60 t 60 75 190 200 4 65Ulbrich 90 t 90 100 205 230 4 80Ulbrich 60 t 60 125 170 245 5 54Power Team 50 t 50 75 160 200 4 40Ulbrich 30 t 30 150 125 285 2 32
Problems with dismantling (assembly) of bulky loads under bridge structures aresolved by the heavy lifting system, which can be used in inaccessible terrains underbridges. This equipment consists of a hydraulic cylinder and mechanical self-lockingequipment that facilitate anchoring the hydraulic cylinder. The equipment stroke dependson the length of the suspension cable and is not restricted by the available space.The maximum load is 400 t.
This technology is mostly used for movable scaffolding or whole formwork handling.Heavy lifting is top-notch hydraulic equipment that can reduce idle time and cutbuilding costs.
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Equipment for lifting and handling
Hydraulic cylinder(pressure)
Capacity(tonnes)
Stroke(mm)
External(diameter mm)
Length(mm)
Quantity(pieces)
Ulbrich 250 t (70MPa) 250 100 255 300 32Europress 250t (70Mpa) 250 190 270 440 7Enerpack 250t (70MPa) 250 250 280 480 8Enerpack 250 (70MPa) 250 50 280 180 4
We own technology for repair and reconstruction, which can lift structures to replace bearingsand also lift bridge spans and a variety of other loads. Hydraulic cylinders are synchronizedaccording to requirements for accuracy and even stroke and they are computer controlled. Thissystem guarantees cylinder stroke accuracy of 5mm per 50m. The equipment is comprised ofa high-pressure pump (70MPa), hydraulic distribution of control units and a hydraulic cylinder.The equipment can work in temperatures of up to -10 C.
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Pile load test
Technical data:
hydraulic cylinder 4x 250t
hydraulic pressure 71 MPa
ground anchor 8 pieces
A static test of a pile is to demonstrate that its loading capacity corresponds withdesigned load forces.
The load force is generated by means of a steel cap with 8 arms to which 8 ground anchors
are clamped. By prestressing ground anchors the axial force is introduced onto the pile head.The value of the force is controlled by electronic equipment which simultaneously measuresthe piles decline. The test results are evaluated in accordance with the Czech standards.
Construction of ground anchors is subject to individual design in accordance with geologicalconditions and applied force.
Test equipment is adaptable for testing the pile on horizontally acting force, i.e. the bendingeffect.
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Production of dry mixture for polymer mortarand concrete
Polymer mortar
Characteristics according to affirmative tests:
Polymer mortar
compression strength 65 MPa
tensile strength 20 MPa
electrical resistance 70 k
modulus of elasticity 10 GPa
Mortar is used as a levelling layer for installation of bearings, anchoring plates and in high-stress parts or where electric resistance is required.
The mixture consists of CHS Epoxy 5/2, sand 0/4, Si fly ash, thinner.
Lacunose polymer concrete
Characteristics according to affirmative tests:
Lacunose polymer concrete
compression strength 11 MPa
tensile strength 3 MPa
modulus of elasticity 5 GPa
void index 30%
Lacunose concrete is used for drainage of rain water from the layer between the roadsurface and its insulation. A bitumen layer can be executed in 24 hours after the concretelayer was put on. This interval needs to be extended in temperatures under 20C.
The mixture consists of CHS Epoxy 512, hardening agent P11 or P23,Si fly ash and aggregate.
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Steel construction
workshop
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Steel construction
List of products certified for use in public structures
Steel Crash Barrier for motorways
Anchor component for crash barriers
Skanska Steel bridge handrail
Traffic sign gantries incl. lighting
Bridge expansion joints
Fabrication of suspension strands
List of other products
Noise barriers on bridges and retaining walls
Miscellaneous components for water drainage and infrastructure networks fixing
components for coupling concrete to concrete
Modification and adaptation of steel structures
Pedestrian bridges
Licence for steel construction fabrication
State authority certificate
Quality system
The core production programme is oriented especially on fabrication and installation
of products certified for use in the civil engineering industry for bridge construction andreconstruction as well as for road and railway projects.
The production process takes place in new production facilities with trained and experiencedstaff in compliance with EU quality and occupational safety standards. Welders are certifiedby a national certification body and supervised by an appointed EU-certified welding engineer.
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Steel retaining system for motorway bridges
Retaining grade H2
Crash impact level B
Work space W5
Traffic retaining system with handrail, Skanska ZSSK/H2
ZSSK/H2 is a one-sided retaining system intended for installation on bridges, retaining wallsand similar constructions for providing the safety off vehicles. The system is CE certified after ithad successfully undergone a crash test in compliance with the SN EN 1317-1,2 standard.
The barrier is composed of the steel retaining profile NH4, assembled to steel columns madeof rolled U140, distributed at a regular distance of 2000 mm. For pedestrian safety, mashpanels may be assembled to columns if requested. The columns are fixed to the anchoringcomponent with 4 bolts via a foot plate placed on a polymer mortar base. Corrosionprotection is provided by zinc metallisation and a coat of paint.
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Anchoring component for fixing retaining systemcolumns
The component is built into the pavement. Before concreting, it is adjusted vertically with4 adjusting screws. The concrete class should be 4O MPa at least.
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SKANSKA-type road safety fence for bridgesType SK-MZI, SK-MZII, SK-MZII-03, SK-MZII-04, SK-MZIII
The SKANSKA-type road safety fence is intended for use on bridges with low traffic(SN 74 3305) where the horizontal impact of pedestrians on the railing could occur.Safety of vehicle traffic is ensured using a different system (retaining system).
Product description by type:SK MZI
The system consists of a handrail fastened to columns distributed at a distance of 3000 mm.Vertical bars placed between the columns are no more than 120 mm apart.
SK MZIISimilar to MZI but, instead of columns, the frames are supported with short bars built intoconcrete and placed 3000 mm apart.
SK MZII 03, SK MZII 04
Similar to MI, but the frame is additionally supported with short columns. Vertical bars are ofa round or rectangular profile.
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SK MZIII
Similar to MZI, but with columns and frames of L-shaped bars. This system is designedspecifically for railway bridges.Fence installation
There are two methods used for fastening columns to the pavement:1. Sockets are formed in a concrete base into which the bottom end of the columns is placed
and then concreted with special mixture.2. The column is fixed to the pavement with bolts via an anchor plate. The bolts are either
sealed into bored holes or screwed into the built-in anchoring component. The plate sits onspecial mortar to allow for levelling and adjusting the column.
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Universal bridge handrails
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Expansion jointsSkanska EJ-type MZ 80J and 100J
Expansion joints comprise a steel part built into the concrete structure and a rubberV profile which makes the joint water-tight. EJ are fabricated and delivered in accordancewith the specific bridge design and assembly is ensured by trained staff on site.
Working stroke for MZ 80 is 40 mm, and 50 mm for MZ 100.
Built-in steel part is mostly fabricated of L-shaped profile, but can be also welded fromsteel plates. Underside the profile, anchors of transversal plates with reinforcing barsare welded on.
Steel upper blocks are of special F shape with a channel for rubber belt slat. The beltshould be dismantled and replaced if damaged.
Sidewalk part - the EJ is covered by an overlapping plate for pedestrian safety.
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Noise protection barriers on bridges and walls
Protection barriers are installed for protection of populated areas against the unfavourableinfluence of noise produced by traffic and as bird protection against collisions with vehicles.
Skanska supplies and installs barriers made of steel columns to which noise protectionpanels are fastened. The columns are fixed to the pavement with bolts via steel plates.Glass or polycarbonate panels are used as noise protection material. The panels are coupledto columns by means of L profiles with rubber sealing belts. The bottom edge of the panelis reinforced with a stainless U profile. The upper edge is loose.
The barrier height and column distribution varies by design.
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Traffic sign gantries
Gantries serve for accommodation of traffic signs, information panels, cameras and trafficcontrol gauges, etc.
The gantries are subject to certification in accordance with Czech legislation. If requested,the gantries are fitted with sign lighting. Their supporting columns must be protectedby a retaining wall against any vehicle impact.
Skanska gantry types:
Single beam gantrytype max clearance gantry span sign areaJNP 1 6.2 m < 16 m < 40 m2
JNP 2 6.8 m
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F b i ti f i t d
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Fabrication of suspension strands
The qualification for fabrication of this product is approved by certificate. The strand loopis fixed by a sleeve pressed onto rope ends by a PNB 300T hydraulic cylinder equipped withappropriate accessories fitting the rope and sleeve diameter. All dispatched products are dulyrecorded and marked in accordance with respective applicable standards (certification).
The production programme also includes other types of strands made of chains, with hooks,couplers, suspension bolts, etc.
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Reference projects
D1 t i d t th it
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D1 motorway viaduct over the cityof Povask Bystrica
Award Project 2010 by the Slovak government Balanced cantilever method used for construction. Prestressing system Skanska.
Belt high a aro nd Prag e section 513
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Belt highway around Prague, section 513,Bridge across the Vltava River
Award: Czech civil project 2010 Balanced cantilever method used for construction. Prestressing system Skanska.
Lay by railway station Brno 1st stage
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In situ cast by use of ordinary scaffolding with MTP 100 supports
Lay-by railway station Brno, 1st stage
Award: Civil project 2010 of the South Moravian Region
Optimisation of the railway track
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Optimisation of the railway trackfrom Stbro to Plan near Marinsk Lzn
Railway bridge reconstruction Structure lifted up and down by hydraulic cylinders.
Optimisation of the railway track
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Optimisation of the railway trackfrom Stbro to Plan near Marinsk Lzn
Railway bridge reconstruction at km 386.918 Structure lifted up and down by hydraulic cylinders.
Bridge across the Odra River
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Bridge across the Odra River,road II/464 Studnka Monov
Heavy lifting by hydraulic hollow cylinders and threaded bars.
Country road overpass across D47 motorway
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Country road overpass across D47 motorway
Award: Czech Bridge Project 2009 In situ cast by use of DOKA falsework. Prestressing system Skanska with cables of strands15.5/1800 for deck was used.
Road bridge across the Morava River in Olomouc
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Road bridge across the Morava River in Olomouc
Awards: 1. 2008 Czech Bridge Project,
2. 2008 Construction Project of the Olomouc Region
In situ cast by use of heavy falsework PEINER and Doka formwork. Prestressing system Skan-ska with cables of 19 strands 15.5/1800 was used.
Railway viaduct Sluncov
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In situ cast by use of falsework with MTP towers and formwork DOKA, launched from span tospan. Prestressing system Skanska with cables of 19 strands 15.5/1800 was used.
Railway viaduct Sluncov,project Praha New connection
Awards: Czech Bridge Project, Czech Civil Project of 2009
Cable stay bridge across the Odra River
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Cable stay bridge across the Odra Riverand Antoovicke Lake, D47 motorway
Awards: Czech Bridge Project 2007, Czech Civil Project of 2007, Project 2007
of the Moravian-Silesian Region, 2007 Topinvest Best Investment, 2007
Skanska Bridge Project.
Movable Scaffolding System overhead was used for span by span construction.Prestressing system Skanska with cables of 4/13/19/36 strands 15.5/1800 for deck was used,VSL for stays.
Kninice Bridge D8 motorway
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Kninice Bridge, D8 motorway
Award: Czech Civil Project 2008 Movable Scaffolding System underslung was used for span by spanconstruction. Prestressing system Skanska with cables of 19 strands15.5/1800 was used.
Pedestrian Bridge across the Svratka River, Brno
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Technology precast arch components, precast slab segments. Skanska post- tensioningsystem for prestressing was used.
Pedestrian Bridge across the Svratka River, Brno
Awards
1. Czech Bridge Project 2007
2. FIB Awards For Outstanding Concrete Structures, Washington:
Footbridge Awards 2008, Aesthetics Medium Span
Footbridge Awards 2008, Technical Medium Span
Viaduct Blotn, R48 highway
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Composite bridge of steel and concrete structure. Slab was concreted by use of Skanska form travellers.
Viaduct Blotn, R48 highway
Green Bridge, D11 motorway
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g , y
Falsework DOKA was used for concreting the arch in three sections into which the falseworksection was launched.
Railway viaduct Jezernice brick half
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y
Award Czech Bridge Project 2001. Reconstruction of the Czech historical monument. The entire superstructure was demolishedand newly reproduced. Piers were regenerated.
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Skanska a.s., Roads and Bridges division
www.skanska.cz
Branch Company Bridges
Bohunick 133/50619 00 BrnoCzech RepublicTel: +420 547 138 217Fax: + 420 547 212 059
Company registered office - billing address:Skanska a.s.Lbalova 1/2348149 00 Prague 4 - ChodovBusiness Registration No. (I): 26271303Tax Identification No. (DI): CZ26271303
Bank Account: 2038057503/2600 CITI BANK EUROPE
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