Closed
Scottish Trunk Road Network - South East Unit - Forth Road Bridge Side Tower Lateral Thrust Bearing
Descriptions
BEAR Scotland is seeking to appoint a suitably experienced SubContractor to undertake the Side Tower Lateral Thrust Bearing Refurbishment scheme with an estimated value 1.2 million GBP.The Forth Road Bridge is a long span suspension bridge which spans over the Firth of Forth linking Edinburgh to Fife. The side Span is 408m long, Main Span is 1006m long.Two longitudinal stiffening trusses form the basis of the suspended structure, which are connected to one another by regular cross girder trusses.At the Side Towers, the ends of the truss transfer vertical load to the side tower through the vertical rocker bearings which sit on top of reinforced concrete corbels protruding from the side towers. Plan bracing is provided between the east and west trusses in the planes of the top and bottom chords, forming bays of approximately 18m (60feet) in length. The plan bracing transfers the lateral loads (primarily wind) to the Side and Main Towers’ lateral thrust bearings.The side tower lateral thrust bearings have not been replaced since the bridge was built. The top laterals taper down and bear onto a milled bearing block. A gusset plate is bolted to the top of the tapering members. The bearing block is in contact with machined cylindrical surface on the bearing slab, forming a vertical rocker bearing.Three 100mm diameter steel tubes are cast in the concrete and through these tubes, 64mm diameter steel bars are post tensioned securing the bearing blocks. The 64mm dia bars have been assessed to be sub-standard and are in need of replacement. The scheme will require at both side towers:- The installation of temporary access provisions to provide access both externally and internally of the reinforced concrete side towers;- The fabrication and installation of a large steel jacking frame.- De-tensioning and removal of three post tensioned bars sequentially at each location followed by the reinstallation and jacking of replacement post tensioned bars.- Installation of a permanent steel bracing bracket which shall be attached to the side tower by coring and post tensioning bars to the existing concrete; and- Amendments to an existing impressed current cathodic protection system.
Timeline
Published Date :
Deadline :
Contract Start :
Contract End :
Tender Regions
CPV Codes
45221110 - Bridge construction work
45221100 - Construction work for bridges
45221111 - Road bridge construction work
45233100 - Construction work for highways, roads
44212100 - Bridge
45223200 - Structural works
45233124 - Trunk road construction work
45221115 - Construction work for steel bridges
45233130 - Construction work for highways
44212110 - Bridge sections
45262400 - Structural steel erection work
45221119 - Bridge renewal construction work
Keywords
bridge
structural span
viaduct
footbridge
crossing structure
bridge sections
prefabricated span units
girders
modular bridge panels
prefabricated bridge components
bridge construction
civil bridge building
structural crossing infrastructure
river span build
overpass erection
transport bridge construction
civil engineering bridge
vehicular span build
bridge superstructure work
crossing infrastructure
bridge building
structural bridge erection
span structure construction
transport overpass build
civil bridge projects
superstructure erection
crossing infrastructure build
bridge erection work
highway bridge building
bridgework services
road bridge construction
highway overpass build
vehicular span erection
transport bridge structure
roadway crossing construction
civil highway span build
traffic bridge build
expressway overpass build
motorway bridge construction
asphalt span erection
steel bridge construction
structural steel span build
welded steel overpass
modern steel bridge erection
high‑load steel span
reinforced steel infrastructure
steel frame bridge build
highway steel bridge
industrial steel bridge
steel transport span
bridge refurbishment
span renovation works
structural bridge repair
bridge rehabilitation construction
restoration of existing bridge span
deck renewal project
bridge overhaul works
lifecycle upgrade of bridge
civil bridge restoration
bridge superstructure renewal
structural construction
load-bearing system build
foundation and framework works
civil structure installation
supporting frame assembly
basic structure construction
skeleton works
reinforced structure build
structural shell creation
road construction
highway building
expressway erection
arterial road installation
trunk road build
vehicular corridor construction
road pavement works
intercity road construction
roadway infrastructure build
transport highway construction
major route construction
primary highway infrastructure
interregional road erection
arterial trunk carriageway build
national route development
transport corridor construction
main road pathway build
trunk route pavement
main logistics road build
highway construction
expressway build
freeway infrastructure works
national highway construction
motorway corridor build
trunk road construction
controlled-access highway erection
multi-lane highway works
road-based transport corridor build
structural steel erection work
steel framework installation
steel beam erection
steel column assembly
structural steel positioning
steel skeleton building
metal frame installation
structural steelwork
industrial steel erection
steel structure build
Tender Lot Details
2 Tender Lots
Workflows
Status :
Procedure :
Suitable for SME :
Nationwide :
Assign to :
Tender Progress :
Details
Notice Type :
Tender Identifier :
Tenderbase ID :
Low Value :
High Value :
Buyer Information
Name :
Procurement contact
Name :
Phone :
Email :
Possible Competitors
1 Possible Competitors
