Railway Bridge Brunngraben -...
Transcript of Railway Bridge Brunngraben -...
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Railway BridyBrunngrabeng
Special Session:Special Session:Austrian experience of using EurocChallenges and opportunities
Workshop „Bridge Design to Eurocodes – Background and Applicatio
gegn
codes for bridge design
ons“ Dr. Thomas Petraschek
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Brunngraben Bridge StyriaBrunngraben Bridge – Styriasingle span steel bridge with open rail trac
Workshop „Bridge Design to Eurocodes – Background and Applicatio
Introduction
ck
ons“ Dr. Thomas Petraschek
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longitudinal cu
effective spa
rail track
g
rail track
owest line of old structure+ 630 50 m
clearance
+ 630,50 m
Workshop „Bridge Design to Eurocodes – Background and Applicatio
Introduction
ut
n = 14,44 m
lowest line ofnew structure
+ 630 42 m+ 630,42 m
ons“ Dr. Thomas Petraschek
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- straight bridge with straight and- straight bridge with straight and - min. 5000 mm clear width betwe- max. construction height 1220 mmax. construction height 1220 m- width of top flanges 500 mm - lack of stiffeners- span range from 10 – 20 m
[Fink J Ku
Workshop „Bridge Design to Eurocodes – Background and Applicatio
[Fink J., Ku
Initial Situation
curved railway trackcurved railway trackeen top flanges mmmm
uss St NEW RAILWAY TROUGH BRIDGES 2007]
ons“ Dr. Thomas Petraschek
uss St., NEW RAILWAY TROUGH BRIDGES, 2007]
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principle cross section for a
[Fink J Ku
Workshop „Bridge Design to Eurocodes – Background and Applicatio
[Fink J., Ku
Statics
a span range of 10 – 20 m
uss St NEW RAILWAY TROUGH BRIDGES 2007]
ons“ Dr. Thomas Petraschek
uss St., NEW RAILWAY TROUGH BRIDGES, 2007]
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self weight an dead loads (road- self weight an dead loads (road - load model LM71, SW/2 and “un- starting and breaking forcestarting and breaking force- nosing force- wind force- temperature- derailment force- earthquake force– defined in EN 1990, 1991 and 19
[Fink J Ku
Workshop „Bridge Design to Eurocodes – Background and Applicatio
[Fink J., Ku
Statics
bed sleepers rails)bed, sleepers, rails)nloaded train”
998 (comprising NAD)
uss St NEW RAILWAY TROUGH BRIDGES 2007]
ons“ Dr. Thomas Petraschek
uss St., NEW RAILWAY TROUGH BRIDGES, 2007]
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load model LM71 for local dimensioninload model LM71 for local dimensionin
[Fink J., Kuss St., NEW RAILWAY TROUGH BRIDGE
Workshop „Bridge Design to Eurocodes – Background and Applicatio
Statics
ngng
ES, 2007]
ons“ Dr. Thomas Petraschek
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standard cross section
[Fink J Ku
Workshop „Bridge Design to Eurocodes – Background and Applicatio
[Fink J., Ku
Statics
- end supporting detailpp g
uss St NEW RAILWAY TROUGH BRIDGES 2007]
ons“ Dr. Thomas Petraschek
uss St., NEW RAILWAY TROUGH BRIDGES, 2007]
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additional degrees of freedom
natural mode forl t l t i l b klilateral torsional buckling
[Fink J Ku
Workshop „Bridge Design to Eurocodes – Background and Applicatio
[Fink J., Ku
Non deformability
uss St NEW RAILWAY TROUGH BRIDGES 2007]
ons“ Dr. Thomas Petraschek
uss St., NEW RAILWAY TROUGH BRIDGES, 2007]
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bending momtransversal bridge
[Fink J Ku
Workshop „Bridge Design to Eurocodes – Background and Applicatio
[Fink J., Ku
Secondary moments
ments for thedirection [kNm/m]
uss St NEW RAILWAY TROUGH BRIDGES 2007]
ons“ Dr. Thomas Petraschek
uss St., NEW RAILWAY TROUGH BRIDGES, 2007]
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three critical problemsthree critical problems- loading of the web about the w- filled welds are stressed abou
[Fink J Ku
filled welds are stressed abou- much severe detail category fo
Workshop „Bridge Design to Eurocodes – Background and Applicatio
[Fink J., Ku
Secondary moments
weak axist their weak axis
uss St NEW RAILWAY TROUGH BRIDGES 2007]
t their weak axisor the weld
ons“ Dr. Thomas Petraschek
uss St., NEW RAILWAY TROUGH BRIDGES, 2007]
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welding detailwelding detaildeck plate
Workshop „Bridge Design to Eurocodes – Background and Applicatio
Detailed planning
transition in direction of forceexecute free from notches
transition in direction of force execute free from notches
ons“ Dr. Thomas Petraschek
execute free from notches
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welding detailconnectionconnectiondeck plate to web
Workshop „Bridge Design to Eurocodes – Background and Applicatio
Detailed planning
transition grindingg gfree from notches
ons“ Dr. Thomas Petraschek
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Global family of standard
Eurocodes Execustand
EN 1990-EN 1999
stand
z.B. EN
DesignSpecific
compoDesign compo
Workshop „Bridge Design to Eurocodes – Background and Applicatio
Standards
ds for steel constructions
ution-dards
Materialstandardsdards
N 1090 z.B. EN 10025-2
cation of onents
Material, products, testing methodsonents testing methods
ons“ Dr. Thomas Petraschek
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S ifi ti d d k t tiSpecifications and dokumentation
EN 1090-2, 4.1.1: Execution Speci
The necessary information and techeach part of the works shall be agrecommencement of execution of that
– additional information, as liste– options, as listed in A.2– execution classes, see 4.1.2– preparation grades, see 4.1.3– tolerance classes, see 4.1.4
Workshop „Bridge Design to Eurocodes – Background and Applicatio
EN 1090-2
n
ification – General
hnical requirements for execution of eed and complete before t part of the works.
ed in A.1
3
ons“ Dr. Thomas Petraschek
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Workshop „Bridge Design to Eurocodes – Background and Applicatioons“ Dr. Thomas Petraschek
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Workshop „Bridge Design to Eurocodes – Background and Applicatio
EN 1090-2
EN 1990, Annex B
ons“ Dr. Thomas Petraschek
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Workshop „Bridge Design to Eurocodes – Background and Applicatio
EN 1090-2
?!?
ons“ Dr. Thomas Petraschek
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Workshop „Bridge Design to Eurocodes – Background and Applicatio
Execution
ons“ Dr. Thomas Petraschek
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Workshop „Bridge Design to Eurocodes – Background and Applicatio
Execution
ons“ Dr. Thomas Petraschek
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Workshop „Bridge Design to Eurocodes – Background and Applicatio
Execution
ons“ Dr. Thomas Petraschek
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Thank you for yy y
Workshop „Bridge Design to Eurocodes – Background and Applicatio
Conclusions
your attention!y
ons“ Dr. Thomas Petraschek