ewijk präsentation
DESCRIPTION
EXTRADOSED BRIDGE PPTTRANSCRIPT
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Design and constructionaspects
Munich | July 02, 2013
Waalbridge EwijkNetherlands
Thomas Kahl
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Contents
Tender – competitive dialog
Bridge layout and construction
Incremental launching
Free balanced cantilever section
Bearings
Pylon and cables
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Contents
Tender - competitive dialog
Free balanced cantilever section
Incremental launching
Bearings
Pylon and cables
Bridge layout and construction
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Existing Waalbridge
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General requirements
55
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Extract of important requirements
66
Technical requirements (VS1): Bridge Width of the bridge between the barriers 19,85m 4m emergency lane, 4 traffic lanes in one direction EMVI-criterium minimal running maintenance costs concrete bridge Eigen eisen: construction cost and construction time Binding documents (like NBD’s) and eurocode + project specific NB’s
Process requirements (VS2): Systems Engineering for design and construction EVP’s en EVR’s and approval plans Transparent track of decision : trade-off / LCC / KALM Ontwerpnota’s / UGP’s / beheer- en onderhoudsplan en tekeningen als bewijsdocumenten Open riscmanagment Responsible for all agent approval, like environmental approvals…
Aestetic requirments Archictacral design required EMVI-criterium vormgeving: integartion of old and new Waalbridge Open structure and transpereant
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Concept of DYWIDAG and Mobiles
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Contents
Tender - competitive dialog
Free balanced cantilever section
Incremental launching
Bearings
Pylon and cables
Bridge layout and construction
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Bridge layout on South side
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Main crosssection
19,85m 4m
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Backspan 105m Approach span 85m or 90m Slenderness construction stage: L/h 11 Slenderness final stage: L/h = 22,5
Frist span ILM concrete C70/85, rest C45/55 Precast elements C53/65 Pylon bottom also C70/85 (after 91 days)
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Transverse PT
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Drainasphalt
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Special features of the Waalbridge
Cable utilization 0,5 GUTS Free balanced cantilever without PT (10m) External PT in the mainspan (cement grouted) Centrical PT in approach bridges partly released after reaching final launching
position Self compacting concrete at the pylon socket C53/C65 after 91 days C70/85 for pylon socket and first incremental launching
section (standard concrete - no height strength concrete)
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Riverpiers
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Contents
Tender - competitive dialog
Free balanced cantilever section
Incremental launching
Bearings
Pylon and cables
Bridge layout and construction
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Incrementral launching
section A section B section C
Boxconstruction PC- elements Insitu deck concrete
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PT layout for approach bridge south
Centrical PT 41kg/m²Excentrical PT 28,8kg/m²
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Launching nose connection
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Boxgirder construction
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Blisters approach bridge
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Centric stressing
Prestressing
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Contents
Tender - competitive dialog
Free balanced cantilever section
Incremental launching
Bearings
Pylon and cables
Bridge layout and construction
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External PT in the main span
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Height FBC section 350cm
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External Prestressing
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Contents
Tender - competitive dialog
Free balanced cantilever section
Incremental launching
Bearings
Pylon and cables
Bridge layout and construction
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Bearings
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Bearing arrangement pier 3 Construction stage Final stage Bearing exchange
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Contents
Tender - competitive dialog
Free balanced cantilever section
Incremental launching
Bearings
Pylon and cables
Bridge layout and construction
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1
2
3
4
5
6
7
8
910
51,5
3m +
13,
7cm
3,50/3,00m
2,50/2,00m
Pylon, staycables
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Pylon area
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Layout drawing of section 1
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