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Greek Street, Stockport. Rail bridge Reconstruction - FRC Package
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Descriptions
CMP2/1a Greek street carries the two lane Greek Street Roundabout over the five track electrified West Coast Main Line, in Stockport City Centre. Two Tracks run below the East Span with the three remaining tracks below the west span. The bridge was originally a tunnel but was reconstructed as an overbridge in 1958. The Two span Simply supported superstructure consists of precast post-tensioned prestressed concrete deck beams and in-situ reinforced concrete deck slabs. Gaps between the beams are formed by in-situ reinforced concrete. The intermediate support is provided by a reinforced concrete crosshead beam, columns and foundation slab. The deck beams are post-tensioned transversely. Parapets for the structure are comprised of brickwork. The bridge has a skew spans of 9.14m on the east and 13.99m on the west side, at angles of 13 degrees. The carriageway width varies from 9 to 13m due to the layout of the roundabout. Footways are provided adjacent to the north and south parapets of the structure, with varying widths. Trief Kerbing with a mounted pedestrian guardrail are present to separate pedestrians from the carriageway. Greek Street Bridge is a two span post tensioned structure in which the latest PTSI assessment concluded that the structure is understrength and overstressed. Engineering standard NR/CIV/025 has been used to manage the substandard structure in the short term with additional monitoring in place. Specific elements of concern included exposed concrete reinforcement which has begun to corrode on the deck soffit, seepage of water onto the soffit which will cause degradation to accelerate further. The most recent assessment report stated that the risk of failure was 'High' to 'Very High' and that deck replacement is required in 2025, otherwise the structure would need to be closed to road traffic until completely reconstructed, due to the overstress and deterioration it would not be safe to operate. The project proposal is to replace the existing bridge with a single span removing the central pier in a 21 day core possession in August 2025. This will require alterations to the existing OLE equipment that runs underneath the structure. The highway will also be closed for a significant period whilst construction works are undertaken to replace the bridge - circa 50 weeks. The deck construction works will commence once all beams are landed, connected and waterproofing membrane is installed. The sub-contractor will then be responsible for setting up all formwork and erecting steel re-inforcement (Opportunity to construct in cages may arise during design development, but please assume in-situ at this stage). Supply all associated concrete. Sub-contractor to then provide 2no. concrete pumps for duration of their pouring works. Sub-contractor to also finish concrete.
Timeline
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Tender Regions
CPV Codes
45262311 - Concrete carcassing work
45223500 - Reinforced-concrete structures
45262310 - Reinforced-concrete work
44114000 - Concrete
45262370 - Concrete-coating work
42122190 - Concrete pumps
44114200 - Concrete products
45262350 - Unreinforced-concrete work
43413000 - Concrete or mortar mixers
45262300 - Concrete work
44114250 - Concrete slabs
24957200 - Additives for cements, mortars or concretes
44114100 - Ready-mixed concrete
Keywords
concrete
concrete framing
concrete work
concrete bedding
shuttering works
floor slabs
slab casting
mortar mixers
precast slabs
cement retarder
concrete slabs
manhole sections
mixer pump
ceiling slabs
shotcrete pump
concrete sealing
concrete overlay
concrete blocks
cement pump
RCC building
grout pump
concrete mixers
poured concrete
formwork removal
pavement slabs
mobile concrete pump
civil concrete works
reinforced-concrete work
portable concrete mixers
cement mixing machines
concrete placement pump
cement plasticizer
mortar accelerator
ready mixed concrete
concrete delivery
formwork engineering
batch mixed concrete
load mixed concrete
industrial mixer units
reinforced concrete pour
pipeline concrete pump
concrete casing support
mass concrete placement
plain concrete pours
concrete admixture
RC skeleton erection
RC structure erection
formwork carpentry
precast concrete units
concrete carcassing work
concrete base pouring
structural concrete
cast-in-place concrete
structural RC framing
anti corrosion coating
ready mix concrete
RC building framework
building concrete
rebar concrete structure
concrete slab pouring
pre mixed concrete
construction pump
concrete-coating work
concrete products
construction mixers
simple concrete pours
formwork installation
steel-concrete composite construction
concrete beam and column work
structural formwork systems
load-bearing concrete structure
protective concrete coating
structural concrete build
concrete surface treatment
pump for ready-mix concrete
unreinforced concrete work
concrete superstructure work
surface treatment of concrete
structural concrete works
reinforced concrete shell build
mass concrete installation
reinforced concrete structure build
concrete paint application
concrete waterproofing coat
concrete core construction
concrete frame construction
in-situ concrete construction
non reinforced slab construction
in situ plain concretework
reinforced slab construction
concrete foundation building
decorative concrete finish
high-strength reinforced concrete work
concrete formwork erection
high-pressure concrete pump
seismic RC structure build
concrete foundation build
casting molds installation
Workflows
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