Who we are…. … “Bridging the World”.strongholdiran.ir/images/Downloads/NRS Bridge...

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NRS AS is a highly specialized company and a leading supplier ofadvanced bridge construction equipment and consulting engineering for the construction of concrete bridges.

We are operating world wide with our skills carefully collected in the harsh environment of the Norwegian coastline.

Who we areWho we are…….. …… ““Bridging the WorldBridging the World””..

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Norway is located at the same latitude as Greenland, Siberia and Alaska...

Who we areWho we are……..

…with a nature challenging the human being as well as engineering.

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Our coastline is relatively warm compared to Siberia and Alaska since we have the Golf Stream never letting the temperature in the sea drop below +4 ºC.

From its southernmost point to the North Cape Norway stretches over 1.752 km.

However, the mainland’s coastline is 21.465 km long, pierced by deep fjords and steep mountains.

This combination of arctic climate, mild sea temperatures and penetrated coastline releases a lot of energy.


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…in which we have developed our knowledge and learn our skills.


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NRS AS is a Norwegian company, which is rich in experience on NRS AS is a Norwegian company, which is rich in experience on advanced construction equipment for concrete bridges and advanced construction equipment for concrete bridges and modern techniques of construction. We have more than 30 years modern techniques of construction. We have more than 30 years of expertise in specialized construction equipment, such as of expertise in specialized construction equipment, such as Launching Gantries (LG) for precast segments and Movable Launching Gantries (LG) for precast segments and Movable Scaffolding System (MSS) for cast inScaffolding System (MSS) for cast in--situsitu concrete bridges, as concrete bridges, as well as formtravellers for free cantilever and cable stay bridgewell as formtravellers for free cantilever and cable stay bridges.s.


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NRS AS delivers cutting edge technology and state of the art NRS AS delivers cutting edge technology and state of the art design solutions at very reasonable and competitive costs to design solutions at very reasonable and competitive costs to customers and partners around the entire world. customers and partners around the entire world.


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NRS AS Formtravellers, MSS and Launching Girders are being NRS AS Formtravellers, MSS and Launching Girders are being used worldused world--wide and are noted for their practical effectiveness wide and are noted for their practical effectiveness and economic efficiency. The company's expertise has helped and economic efficiency. The company's expertise has helped build more than 300 bridges, including several world longest, inbuild more than 300 bridges, including several world longest, inmore than 25 countries all over the world and under all sorts ofmore than 25 countries all over the world and under all sorts ofclimatic conditions.climatic conditions.


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Our company's innovation and constant pursuit for engineering improvement over the years are reflected in our ability to resolve some of the most difficult construction constraints with our equipment.

Today, NRS AS equipment are widely noted for their practical effectiveness, economic efficiency and innovation.

Our expertise and technological solutions are increasingly called upon to support a variety of bridge and elevated expressway projects world-wide.

Our company's innovation and constant pursuit for engineering Our company's innovation and constant pursuit for engineering improvement over the years are reflected in our ability to resolimprovement over the years are reflected in our ability to resolve some of ve some of the most difficult construction constraints with our equipment. the most difficult construction constraints with our equipment.

Today,Today, NRS ASNRS AS equipment are widely noted for their practical effectiveness, equipment are widely noted for their practical effectiveness, economic efficiency and innovation. economic efficiency and innovation.

Our expertise and technological solutions are increasingly calleOur expertise and technological solutions are increasingly called upon to d upon to support a variety of bridge and elevated expressway projects worsupport a variety of bridge and elevated expressway projects worldld--wide. wide.


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NRS ASNorway

NRS ASNorway

NRS Design Norway

NRS Design Norway

NRS AsiaMalaysia

NRS AsiaMalaysia

NRS ChinaChina

NRS ChinaChina

NRS Eastern EuropeSlovakia

NRS Eastern EuropeSlovakia

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Norwegian bridge building expertise has spread world-wide


NRS affiliates/agentsNRS affiliates/agents

NRS main officesNRS main offices

NRS bridge building projectsNRS bridge building projects

MalaysiaMalaysiaKuala LumpurKuala Lumpur

ChinaChinaBeijingBeijing

NorwayNorwaySandvikaSandvika

SlovakiaSlovakiaBratislavaBratislava

USAUSASan Jose, CASan Jose, CA

VietnamVietnamHo Ho Chi MinhChi Minh

TurkeyTurkeyIstanbulIstanbul

TaiwanTaiwanTaipeiTaipei

KoreaKoreaSeoulSeoul

IndiaIndiaChennaiChennai

GreeceGreeceAthensAthens

EgyptEgyptCairoCairo

CanadaCanadaVancouver, BCVancouver, BC

BeNeLuxBeNeLuxRaamsdonksveerRaamsdonksveer, NL, NL

ChinaChinaHongHong KongKongXinjiangXinjiangNanjingNanjingChengdu Chengdu Wuhan Wuhan Dalian Dalian TianjinTianjinShanghai Shanghai GuangzhouGuangzhou

PortugalPortugalLisbonLisbon

UKUKCardiffCardiff

GermanyGermanyAhausAhaus

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Our main productsOur main products……..

Formtravellers (BRIDGEBUILDER)Formtravellers (BRIDGEBUILDER)For cast in-situ concrete bridges and precast segmental construction.

Movable Scaffolding System (MSS)Movable Scaffolding System (MSS)For cast in-situ concrete bridges - overhead or underslung MSS.

Launching Gantries (LG)Launching Gantries (LG)For precast segmental construction – overhead or underslung LG’s.

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BRIDGEBUILDERBRIDGEBUILDERCAST INCAST IN--SITUSITU

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BRIDGEBUILDERBRIDGEBUILDERPRECAST SEGMENTSPRECAST SEGMENTS

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MOVABLE SCAFFOLDING SYSTEMMOVABLE SCAFFOLDING SYSTEMOVERHEAD MSSOVERHEAD MSS

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MOVABLE SCAFFOLDING SYSTEMMOVABLE SCAFFOLDING SYSTEMUNDERSLUNG MSSUNDERSLUNG MSS

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LAUNCHING GANTRIES LAUNCHING GANTRIES OVERHEAD LGOVERHEAD LG

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LAUNCHING GANTRIESLAUNCHING GANTRIESUNDERSLUNG LGUNDERSLUNG LG

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Through our close association with other companies involved in bridge construction equipment, we have also expanded our scope of delivery to cover the design and supply of the following:

Further NRS specialtiesFurther NRS specialties……..

Incremental launching equipment.

Beam Launching System (BLS).

Steel moulds for precast concrete segments/beams.

Air-spinning equipment for wire cables in suspension bridges.

Purpose-built cranes, straddle carriers and low loaders.

Various other handling gears, that your construction operation needs.

Feasibility studies

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Main Products ApplicationsMain Products Applications

MSS MSS -- Moving Scaffolding SystemMoving Scaffolding SystemSpan length 15 - 80 m

Usual Total Length 500m – several km’s

Usual cycle time / span 6 – 10 days

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LG LG -- Launching GantriesLaunching GantriesSpan length: 20 – 100+m

Usual Length: Minimum 600 - 800 segments

Usual cycle time / span 1-2 days / span

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BB BB -- Bridge BuilderBridge BuilderSpan length: 60 – 300+m

Usual cycle time: 2 x 1 segment / week

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BRIDGEBUILDERBRIDGEBUILDERCAST INCAST IN--SITUSITU

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The "Bridgebuilder" formtraveller system was invented in 1970 and today it is acclaimed for enhancing the cost-effectiveness of bridge projects world-wide. NRS has continually improved the Bridgebuilder in collaboration with major contractors. The system is lightweight, versatile and easy to assemble and operate. Rolling forward on rails, the system can be reset quickly and easily.

Where to use the BridgebuilderWhere to use the BridgebuilderThe Bridgebuilder is used for free cantilever construction of post-tensioned boxgirder - and cable-stayed concrete bridges. Engineering to international standards, the system provides an exceptionally rigid formwork, with a maximum deflection of less than 25 mm at full loading.

THE BRIDGEBUILDER CONCEPTTHE BRIDGEBUILDER CONCEPT

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The Bridgebuilder The Bridgebuilder -- Cast inCast in--situsitu

The Standard Bridgebuilder is designed for a usual segment length of 5 m and load capacities (concrete and formwork) varying from 100 tons to 600 tons. The steel weight depends on the cross-section of the bridge in question, but will normally vary from about 25 tons to 110 tons correspondingly. The Standard Bridgebuilder may be adapted to suite almost any cross-section, and is easily adjustable during operation to variations in segment length (up to 5 m), section height, web thickness, and deck width. For segmentlengths beyond 5 m and other conditions, the Bridgebuilder will be tailor-made.

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The Precast Segmental Bridgebuilder is designed for a usual precast segment length of approx. 3 - 5 m and load capacities between 100 and 400 tons. It is equipped with two hoists for lifting the precast segments as well as for adjusting the crossfall. A manipulator permits adjustment of the longitudinal fall and hydraulic cylinders launch the device forward.The Precast Segmental Bridgebuilder can be adapted to almost anynew cross section for future projects.

The Bridgebuilder The Bridgebuilder -- SegmentalSegmental

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FREE CANTILEVER BRIDGES – WORLD’S LONGEST SPANS

No. Project Country Span in m Construction Supplier

1 Stolmasundet bro Norway 301 1998 NRS2 Raftsundet, Lofoten Norway 298 1998 NRS3 Humen, Pearl River China 270 19974 Varrod bro, Kristiansand Norway 260 1993 NRS

5 Gateway bridge, Brisbane Australia 260 1986 NRS6 Skye bridge UK 250 19957 Ponte San Joao , Porto Portugal 250 1991 NRS8 Talübvergang Schottwien Austria 250 19899 Northumberland Strait Crossing Canada 250 199710 Chevire Viaduct, Nantes France 242 1991

14 Norddalsfjord bro Norway 231 1987 NRS19 Stovset bro Norway 220 1993 NRS

Free Cantilever Bridges Free Cantilever Bridges --WorldWorld’’s longest spanss longest spans

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Lightweight:Lightweight:The use of rectangular hollow sections in the main structural components and recoverable high strength bars in all stays and ties reduces the total steel weight to a minimum.

Flexible design:Flexible design:The Bridgebuilder may be adapted to almost any cross-section and is easily adjustable during operation to variations in segment length, box height, web thickness, deck width and road alignment (gradient, curvature, super-elevations).

Small deflections:Small deflections:The vertical deflection at the front of the Bridgebuilder is less than 25 mm at maximum load. Formwork beams are designed for a maximum deflection of L/400 of their length.

Easy assembly:Easy assembly:One Bridgebuilder may be assembled in one week. Rolling forward on rails, the reset time is short.

THE BRIDGEBUILDER FEATURESTHE BRIDGEBUILDER FEATURES

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The Bridgebuilder The Bridgebuilder -- Cast inCast in--situsituComponentsComponents

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MAINRAILS

HYDRAULICCYLINDERS

The Bridgebuilder The Bridgebuilder -- ComponentsComponents

PULL DOWN CYLINDERS

LAUNCHING CYLINDERS

MAIN CYLINDERS

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FRONT & REARBOOGIES

MAINRAILS

HYDRAULICCYLINDERS


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FRONT & REARBOOGIES

MAINRAILS

HYDRAULICCYLINDERS


MAINFRAMEWORK

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FRONT & REARBOOGIES

MAINRAILS

HYDRAULICCYLINDERS


MAINFRAMEWORK

FRONT & REARFRAMEWORK

BOTTOMFRAMEWORK

CROSSARMS

INTERNALFRAMEWORK

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FRONT & REARBOOGIES

MAINRAILS

HYDRAULICCYLINDERS


MAINFRAMEWORK


BOTTOMFRAMEWORK

CROSSARMS

INTERNALFRAMEWORK

EXTERNALFORMWORK

BOTTOMFORMWORK

INTERNALFORMWORK

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FRONT & REARBOOGIES

MAINRAILS

HYDRAULICCYLINDERS


MAINFRAMEWORK


BOTTOMFRAMEWORK

CROSSARMS

HYDRAULICCYLINDERS

INTERNALFRAMEWORK

EXTERNALFORMWORK

BOTTOMFORMWORK

INTERNALFORMWORK

ENDFORMWORK

WORKINGPLATFORMS

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The Bridgebuilder The Bridgebuilder -- Cast inCast in--situsituComponentsComponents

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The Bridgebuilder The Bridgebuilder --A normal working cycle may be as follows:A normal working cycle may be as follows:

• The Bridgebuilder, except for the internal formwork, is launched into position for a new segment.

• The external formwork is levelled and fixed.

• Bottom slab and webs reinforced.

• The internal formwork is pulled forward.

• Top slab is reinforced.

• Concreting of bottom slab and webs. The top slab may be cast after a short intermission to allow setting of the concrete in the webs, or it may be cast the next day.

• After sufficient concrete curing, post-tensioning takes place.

• Formwork is loosened, and the Bridgebuilder launched forward to the next segment. In most cases one cycle is carried out in one week. There are examples of 4-5 days cycle.

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The Bridgebuilder The Bridgebuilder -- CrossCross--Member for Member for installation on smallinstallation on small PierheadsPierheadsWhen the pier head is too small to allow normal assembly of the Bridgebuilder, our patented Cross-member solves the problem. It makes it possible to start free cantilevering from pier heads as small as 3 m. The procedure is illustrated through the these 4 phases.

3 m

Phase 1:Phase 1:Assembly at pierhead as small as 3 m

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The Bridgebuilder The Bridgebuilder -- CrossCross--Member for Member for installation on smallinstallation on small PierheadsPierheadsWhen the pier head is too small to allow normal assembly of the Bridgebuilder, our patented Cross-member solves the problem. It makes it possible to start free cantilevering from pier heads as small as 3 m. The procedure is illustrated through the above 4 phases.

Phase 2:Phase 2:Concreting of 1st segment on each side of the pier finished

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Phase 3:Phase 3:Splitting of travellers (bridgebuilder)

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Phase 3:Phase 3:Splitting of travellers (bridgebuilder)

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Phase 4:Phase 4:12,2 m concreted (standard bridgebuilder); ready for normal procedure

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Stolmasundet Bridge, Norway

Main Span: 301 mWidth of bridge: 12,1 mMax. Load Capacity: 160 tonsCycle Time: 2 x 1 segment per week

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Puente Internacional sobre el Rio Guadiana, Spain/Portugal

Max. Load Capacity: 155 tonsMax. road width: 18 m Max. box width: 11 m Max. length of segment: 4,5 m

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Puente Internacional sobre el Rio Guadiana, Spain/Portugal

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Varodd Bridge, Kristiansand, NorwayMain Span: 260 mMax. Load Capacity: 250 tonsMax. road width: 16,7 m Max. box width: 8 m Max. length of segment: 5 m

50Varodd Bridge, Norway

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Raftsundet, Lofoten, Norway

Main Span: 298 mLoad capacity: 250 tonsMax. road width: 12 m Max. box width: 8 m Max. length of segment: 5 m

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Seo Hae, South Korea

Main Spans: 160 mLoad capacity: 200 tonsMax. road width: 15,7 m Max. box width: 7,2 m Max. length of segment: 5 m

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2nd Stichtse Bridge, The NetherlandsMain Span: 160 mMax. Load Capacity: 250 tonsMax. road width: 21,9 m Max. box width: 13,9 m Max. length of segment: 5,0 m

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Wadi Akbara Bridge, IsraelMain Span: 80 mMax. Load Capacity: 150 tonsMax. road width: 13,7 m Max. box width: 5,5 m Max. length of segment: 4,5 m

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Regua, PortugalMain Span: 180 mMax. Load Capacity: 600 tonsMax. road width: 25,7 m Max. box width: 7 – 9,5 mMax. length of segment: 5,0 m

58Regua, Portugal

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Loures, PortugalMain Span: 150 mMax. Load Capacity: 200 tonsMax. road width: 17,3 m Max. box width: 7,1 m Max. length of segment: 5,0 m

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Loures, Portugal

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Frouzi, Crete IslandMain Span: 72 mMax. Load Capacity: 165 tonsMax. road width: 14,1 m Max. box width: 8,0 m Max. length of segment: 5,0 m

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Frouzi, Crete Island

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Columbia River, (Glen Jackson) U.S.A.Main Span: 170 mMax. Load Capacity: 360 tonsMax. road width: 15 - 22 m Max. box width: (6,5 - 8,0) x 2 mMax. length of segment: 5,0 m

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Columbia River, (Glen Jackson) U.S.A.

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Helgelandsbro, NorwayMain Span: 425 mMax. Load Capacity: 300 tonsMax. road width: 12 m Height edge girders: 1,2 mMax. length of segment: 12,9 m

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Helgelandsbro, Norway

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Visit us at:www.nrsas.com

270901Wolfgang

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Who we are…. … “Bridging the World”.strongholdiran.ir/images/Downloads/NRS Bridge...

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