20101004 the Present and Future of the Eurocodes_Bridges_Welcome_JACalgaro

Dissemination of information for training Vienna, 4-6 October 2010

EUROCODESBridges: Background and applications

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Workshop BRIDGE DESIGN TO EUROCODESVienna, October 4-6, 2010

JeanJean--ArmandArmand CalgaroCalgaro,,

TC250TC250

JeanJean Armand Armand CalgaroCalgaro,,

Chairman Chairman of CEN/TC250of CEN/TC250



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Si th 31 t f M h 2010 th E d h l d thSince the 31st of March 2010, the Eurocodes have replaced the current national codes for the design of construction works, and

bridges in particular. We do not need to give the good example: theirusability has been checked since several years the design loadsusability has been checked since several years, the design loads

cover correctly physical loads and their rules are modern and reliable.



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You can ignore the Eurocodes g

Or you can limit the traffic volume and magnitude of loads



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Many beautiful bridges have been design in the past without the Eurocodespast without the Eurocodes



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Theref re are sta dards a d re particularlyTherefore, are standards and more particularlythe Eurocodes useful for the design of bridges ?



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The design of a civil engineering structureThe design of a civil engineering structure

DirectDirectand indirect and indirect

actionsactions

Functional Functional RequirementsRequirements

REGULATIONSREGULATIONS

MaterialsMaterials

Architect(ure)Architect(ure)(aspect)(aspect) Structural Structural

RequirementsRequirements

STRUCTURESTRUCTUREMaterialsMaterialsProductsProducts(properties)(properties)

(reliability levels, (reliability levels, durability, durability,

adaptability, adaptability, robustness, etc.)robustness, etc.)

Structural Structural analysisanalysis

CODIFIED MODELSCODIFIED MODELS

yyNumerical Numerical

modelsmodels

CODIFIED MODELSCODIFIED MODELS

PHYSICAL MODELSPHYSICAL MODELS



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First aspect Improvement of durability and evolution of materialf f

properties(requirements, design rules and detailing)(requirements, design rules and detailing)



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Corrosion phenomena

9Alkali-silica reaction



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S d asp t Second aspect :The magnitude of traffic loads increases

permanently



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Third aspect : accidental design situations and accidental actions, robustness

EN 1990 - 3.2 (3)P The selected design situations shall be sufficiently severe and varied so as to encompass

all conditions that can reasonably be foreseen to yoccur during the execution and use of the structure.



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Fourth aspect :Fourth aspect :Dynamic behaviour and serviceability criteria for

slender structures



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Vibration of footbridges



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Rain-Wind induced vibrations



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Interaction loads - structure



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Design of bridges with the Eurocodes



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A dream : building bridges with Eurocodes for a better world a link between planets !better world, a link between planets !

Thank You for your attention

Documents

20101004 the Present and Future of the Eurocodes_Bridges_Welcome_JACalgaro