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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