Structural analysis of the Baakenhafen Bridge and the optimisation of chosen elements

COPYRIGHT © 1976-2015 BUROHAPPOLD ENGINEERING. ALL RIGHTS RESERVED
S T RUC T URA L A N A LYS IS OF T H E B A A K E N H A FE N B RID G E
A N D T H E OP T IM IZ AT ION OF C H OS E N E LE M E N T S
Master’s thesis
Julia Karasińska
Student Id: 120443
Gdańsk University of Technology

Julia Karasińska
 BuroHappold Engineering Overview
 Baakenhafen Bridge – Introduction
 HyperWorks
 Design model of the bridge
 Analysis of the particular sections of the bridge under the temperature impact
 Optimization of the primary beams
 Conclusions
AGENDA:
Gdansk University
of Technology
2

BuroHappold Engineering is an
independent, international engineering
practice that over the last 40 years has
become synonymous with the delivery
of creative, value led building and city
solutions for an ever changing world.

Julia Karasińska
Infinity Loop Bridge Atturaif Living Museum Gibraltar Airport The High Line
WE WO RK AC RO SS TH E G LO BE
 We have worked on every continent and our clients include more than 90% of the world’s leading
architectural practices

Julia Karasińska
Building solutions City Solutions
Efficient & Green Design City Diagnostics & Strategy
Operational Effectiveness of Buildings Programme Delivery & Enablement
Intelligent Reuse of Buildings Intelligent Development & Masterplanning
Inspirational Design Infrastructure & City Systems Optimisation
Design for Construction and Fit Out Environment & Natural Resource Optimisation
Intelligent Reuse of Sites
Portfolio & Campus Performance
Integrated Design
Our Service Offer Portfolio:
WE DELIVER ELEGANT SO LU TIO NS
F O R BU ILDING S AND C ITIES

Julia Karasińska
WO RLD MAP

Julia Karasińska
CO MPANY TIMELINE

Julia Karasińska
BAAKENHAFEN BRIDGE
Gdansk University of Technology
8

Julia Karasińska
LOCALISATION: BAAKENHAFEN,
HAFENCITY, HAMBURG
9

Julia Karasińska
ABO U T THE STRU C TU RE :
10
• Removable middle section
• V-columns
• Sustainability concept
64 + 36 + 64 = 166 m

Julia Karasińska
ARC HITEC TU RAL CO NC EP T:
11

Julia Karasińska
TO P AND SIDE VIE W – STRU C TU RAL DR AWING S
12
60°
64 36 64

Julia Karasińska
LIF T -O U T P RO C ESS

Julia Karasińska
LIF T -O U T P RO C ESS
36 m

Julia Karasińska
REMO VING /BRINGING BAC K MIDDLE SEC TIO N
15
~24h

Julia Karasińska
HYP ERWO RKS
16

Julia Karasińska
T H E G E O M E T R Y O F T H E B R I D G E WA S C R E AT E D I N R H I N O C E R E S 5 .
DEVELO P ING THE MO DEL FO R FU TU RE ANALYSIS
17

Julia Karasińska
18
N E X T, T H E R H I N O M O D E L WA S I M P O RT E D A S A G E O M E T R Y TO H Y P E R M E S H
A N D P R E PA R E D TO B E M E S H E D.

Julia Karasińska
19
AP P LYING THE MESH
2 D E L E M E N T S , 2 5 0 X 2 5 0 M M , Q U A D D O M I N A N T

Julia Karasińska
 steel S355 (DIN EN 10025)
 self-weight
 dead loads
 live load: LM1 (EC1 Part 1-2)
 Wind (DIN FB 101)
 temperature: -36° and +41° (DIN FB 101)
MATERIAL AND LOADS
20

Julia Karasińska
RESU LTS – DISP L AC EMENT S (SLS)
Julia Karasińska 21
max ca. 20 cm

Julia Karasińska
RESULTS – STRESSES H-M-H
(ULS)
22

Julia Karasińska
P RESENTING THE P RO BLEM
23

Julia Karasińska
T H E N O RT H A N D M I D D L E S E C T I O N W E R E I N V E S T I G AT E D.
5 B E A R I N G S Y S T E M S ( 5 C A S E S ) F O R T H E M I D D L E S E C T I O N S W E R E C R E AT E D.
B OT H S E C T I O N S W E R E A N A LY Z E D U N D E R T W O T E M P E R AT U R E C O N D I T I O N S :
- 3 6 ° A N D + 4 1 ° .
TEMP ERATU RE IMPAC T O N THE PARTIC U L AR SEC TIO NS
O F TH E BRIDG E
24

Julia Karasińska
BE ARINGS SYSTEM FO R THE MIDDLE SEC TIO N
O F TH E BRIDG E
25
Scheme no.1 Scheme no.3Scheme no.2
Scheme no.4 Scheme no.5
T H E 5 I N V E S T I G AT E D O P T I O N S

Julia Karasińska
C RO SS SEC TIO N – ANALYZED EDGE
26

Julia Karasińska
DEFO RMATIO N IN GLO BAL X DIREC TIO N –
NEG ATIVE TEMP ERATU RE – SC H EME N O. 1
27

Julia Karasińska
NEG ATIVE TEMP ERATU RE – SC H EME N O.5
28

Julia Karasińska
NEG ATIVE TEMP ERATU RE – NO RTH SEC TIO N
29
Settlement joint

Julia Karasińska
THE VALU ES O F THE DISP L AC E ME NT S IN X DIREC TIO N
F O R TH E DEC ISIVE LOAD CO MBINATIO N WERE
O RG ANIZED IN TABLES .
30

Julia Karasińska
NEG ATIVE TEMP ERATU RE – SC H EME N O. 1
31
Case no.1

Julia Karasińska
NEG ATIVE TEMP ERATU RE – SU MMARY
32
Case no.5

Julia Karasińska
O P TIMIZATIO N – GENERAL P RO C EDU RE
33
Type: size optimization
28 design variables created
2 responses: „stress” and „mass”
First run:
Objective Function (Min(Max) MASS )
Constraint: min yield strenght (355 N/mm2)
Convergance tolerance: 0.005
Step size: 0.500
Second run:
Objective Function (Min(Max) STRES)
Constraint: max weight
Convergence Tolerance: 0.005
Step Size (Sizing) : 0.500

Julia Karasińska
FIRST RU N – MINIMIZING THE WEIGHT O F
TH E P RIMARY BE AMS
34
Objective Function (Min(Max) MASS )
Constraint: min yield strenght (355 N/mm2)
Convergance tolerance: 0.005
Step size: 0.500
Iteration Weight [t]
0 926.82
13 883.11
Change 4.72%

Julia Karasińska
THIC KNESS O F THE CO MP O NE NTS BEFO RE
AND AF TER O P TIMIZATIO N
35
before
after
Area: 14530 m²
Steel:
- before ~155 kg/m2
- after ~150 kg/m2

Julia Karasińska
SECO ND RU N – O P TIMIZING STRESS
DISTRIBU T IO N
36
Iteration
Stress
[N/mm2]
Weight
[t]
0 886.60 926.82
15 127.10 844.30
Change
85.66
%
8.90%
Objective Function (Min(Max) STRES)
Constraint: max weight
Convergence Tolerance: 0.005
Step Size (Sizing) : 0.500

Julia Karasińska
STRESS DISTRIBU T IO N
37
before
after

Julia Karasińska
 Temperature has a big influence on skew steel bridges – the angle
plays a significant role.
 Bearing systems need to be planned very carefully and precisely.
 Optimization may help to improve the design and find a more
economical solution for the project.
CO NC LU SIO NS
38

Julia Karasińska
1. Gerhard Mehlhorn: Handbuch Brücken, Entwerfen, Konstruieren, Berechnen,
Bauen und Erhalten, Springer – Verlag Berlin Heidelberg 2007, 2010
2. Henryk Zobel, Magdalena Kruk, Dariusz Sobala: Łożyskowanie mostów w skosie,
Drogi i Mosty, Nr 4, 2004
3. Volker Wetzk: Entwicklung der Brückenlager – Geschichtlicher Überblick,
Bautechnik 83, 2006, H.10, S. 721-732
4. Christian Braun, Gerhard Hanswille, Markus Porsch, Christian Schürmann: Lager
im Bauwesen nach DIN EN 1337, Ernst & Sohn, Verlag für Architektur und
technische Wissenschaften GmbH & Co. KG, Berlin, Stahlbau 78, Heft 11, Berlin
2009
LITERATU RE
39

Dziękuję
Thank you
Danke schön
40

www.burohappold.com
Julia Karasińska

Structural analysis of the Baakenhafen Bridge and the optimisation of chosen elements

Recommended

Recommended

More Related Content

Viewers also liked

Viewers also liked (15)

More from Altair

More from Altair (20)

Recently uploaded

Recently uploaded (20)

Structural analysis of the Baakenhafen Bridge and the optimisation of chosen elements