Odotechniki bridges

ODOTECHNIKI LTD
CONSULTING ENGINEERS www.odotechniki.gr

BRIDGES

DESIGN

MODELLING

ANALYSIS

CONSTRUCTION
FOLLOW UP

Address: 59, 3 rd September Str. GR 10433, Athens, Greece
e-mails: info@odotechniki.gr , odotechniki@odotechniki.gr
Tel. +30 210 8228052, +30 210 8222127, Fax. +30 210 8233003

ODOTECHNIKI LTD

Structural & Geotechnical experts

Design, Consulting, Construction Follow Up and Subcontracting Services on:
• State-of-the-art modelling and analysis;
• Value Engineering solutions;
• Design reviews and independent checks;
• Design of road, railway or pedestrian bridges;
• Design of buildings and steel structures;
• Design of retaining structures;
• Design of tunnels and underground works;
• Design of foundations, embankments, reinforced soil structures, cuts, deep
excavations;
• Analysis and stabilization design of landslides and failures;
• Analysis of rock fall and rock fall barriers design;
• Programming and evaluation of geotechnical investigations and monitoring;
• Geological & geotechnical interpretation reports;
• Risk analysis in geotechnical and structural projects;
• CAD services, providing drawings preparation, reinforcement tables and detailing.

e-mails: info@odotechniki.gr , odotechniki@odotechniki.gr
Tel. +30 210 8228052, +30 210 8222127, Fax. +30 210 8233003

BRIDGES

DESIGN OF
MAJOR PROJECTS

STATE OF THE ART DESIGN,
MODELLING, ANALYSIS

CONSTRUCTION FOLLOW-
UP AND CONSULTING

ODOTECHNIKI LTD – CONSULTING ENGINEERS

PARTICIPATION IN MAJOR PROJECTS OF BRIDGES IN GREECE

DESIGN OF MAJOR PROJECTS



• ATTIKI ODOS (Athens ring road), geotechnical-structural design of bridges, retaining structures, cut
& covers, tunnels, foundations, buildings, urban development projects (constructed).
• ATHENS-KORINTHOS Highway , geotechnical-structural design of bridges, retaining structures,
foundations, high embankments (constructed).
• EGNATIA ODOS, 700km major highway in northern Greece, geotechnical-structural design of
bridges, cut & covers, tunnels, special retaining structures, foundations, high embankments, cuts,
landslide rehabilitation (constructed).
• ANCIENT OLYMPIA RING ROAD , geotechnical-structural design, bridges, cut & covers, tunnels,
special retaining structures, foundations, high embankments (constructed).
• KORINTHOS-TRIPOLI-KALAMATA Highway , geotechnical-structural design of bridges, cut &
covers, tunnels, special retaining structures, foundations, high embankments, cuts, landslide
rehabilitation (under construction).
• High speed RAILWAY KORINTHOS-PATRAS , geotechnical-structural design of bridges, cut &
covers, tunnels, special retaining structures, foundations (under construction).
• ATHENS-THESSALONIKI Highway (STYLIDA ring road) , geotechnical-structural design of
bridges, tunnels, special retaining structures (under construction).
• IGOUMENITSA-PREVEZA National road , geotechnical-structural design of bridges, special
retaining structures, foundations, high embankments, cuts, landslide rehabilitation (under construction).
• North Highway of Crete island , geotechnical-structural design of bridges, cut & covers, tunnels,
special retaining structures, foundations (design in progress).

• Construction follow up consulting ANCIENT OLYMPIA RING ROAD (constructed).
• Construction follow up consulting TRIPOLI-KALAMATA Highway (constructed).



ATTIKI ODOS – ATHENS, GREECE



ATHENS-KORINTHOS HIGHWAY – CENTRAL GREECE



EGNATIA ODOS – NORTHERN GREECE



ANCIENT OLYMPIA RING ROAD – PELOPONNESE, GREECE



KORINTHOS-TRIPOLI-KALAMATA HIGHWAY – PELOPONNESE, GREECE



KORINTHOS-PATRAS HIGH SPEED RAILWAY – PELOPONNESE, GREECE



IGOUMENITSA-PREVEZA NATIONAL ROAD – NORTHERN GREECE


DESIGN, MODELLING, ANALYSIS AND CONSULTING FOR BRIDGES

STATE OF THE ART DESIGN, MODELLING, ANALYSIS



3D DRAWINGS – PHOTOREALISTIC VIEWS



CONCEPTUAL DESIGN – ALTERNATIVE SOLUTIONS

Plan view

Elevation views



CONCEPTUAL DESIGN – ALTERNATIVE SOLUTIONS

2.50

0.70
3.00

2.50

1.30
3.50

Cross sections



PRELIMINARY DESIGN – GENERAL DRAWINGS, MODELLING AND ANALYSIS

Plan view – Horizontal section of the deck

Elevation view

On-site visit Model of analysis



PRELIMINARY DESIGN – GENERAL DRAWINGS, MODELLING AND ANALYSIS
A2 M1 A1

Elevation view

000
K310
0
Á311
A2 M1 A1

57.50

Ä311
K311

Plan view

12.70
663
667 666 A'28Ã A'28Â Á'28A T12N 665 664
53 850 53 800 53 900

11
Ô3

2.00 8.70 2.00
6.46
12

04
K3

K3 12
0
1.65

12.20

Cross section Model of analysis



FINAL DESIGN
DETAILED DRAWINGS, CONSTRUCTION STAGES, MODELLING, ANALYSIS, CHECKS
493 14/ 40 (17x29) L= 1.05

0.
0.75

15
COLUMN

0.
REINFORCEMENT

15
1.80
493 14/ 40 (17x29) L= 2.00

0.
17ÓÖ14/40 1.70

15
0.
15
10Ö20/10

0.35
Ö20/20
5ÓÖ14/20

2x3ÓÖ16/20

Ö20/20
1.70
0. .20
20
0
7.80

8.50

1.10
1.10

1.70
8Ö16
285 14/ 20 (5x57) 1.10
L= 6.00
0. .20
20
0
3.35

3.35

Ö20/20
0.35

1.10
342 16/ 20 (6x57)
L= 9.30

0.35 1.10 0.35



FINAL DESIGN
DETAILED DRAWINGS, CONSTRUCTION STAGES, MODELLING, ANALYSIS, CHECKS
O585
O450

O585
O450

30
10
10 50
60
A A

O20

DRAINAGE PLAN VIEW SECTION A-A
T3 5Ö12
T3 5Ö12

0.17

0.20
0.33
0.50

0.38

1.35

0.13
0.55

1.65
1.25
0.17
1.65

0.16 T4 3Ö12 T4 3Ö12
0.38
0.30 0.10
0.60

0.14
T5 5Ö12 T5 5Ö12
0.30
0.20

T7 ÓÖ10 T7 ÓÖ10

T6 5Ö12 T6 5Ö12

0.10 1.01 0.79 1.01

0.30 0.58 1.23 0.58

TENDONS GEOMETRY AT ANCHORAGE STIRRUPS AT TENDONS ANCHORAGE
SCALE 1:25 SCALE 1:10



3D MODELLING AND ANALYSIS OF UNDERPASSES

Quadrilateral plane elements
simulating the top slab

simulating walls and wing walls

Quadrilateral plane elements with elastic
interface conditions, simulating the bottom slab
and the foundation of the wing walls



3D MODELLING AND ANALYSIS OF COMPOSITE BRIDGES

Beam elements
for the longitudinal and
transverse direction
+ Cross sections of the
auxiliary quadrilateral longitudinal beams
plane elements

simulating the abutments

Piles simulated with beam elements Kinematic constraints
Soil-structure interaction simulated with springs between the surfaces



3D MODELLING AND ANALYSIS OF BRIDGES
WITH SIMPLY SUPPORTED PRESTRESSED DECKS

for the cast in-situ slab

Elastomeric bearings
simulated with springs

Beam elements
for the precast beams and
the transverse direction

Tendons of the
precast beams



WITH PRECAST BEAMS AND SHALLOW FOUNDATION

Hinges at both ends of
the continuous slab

Elastomeric bearings

Boundary conditions
at abutments

Deck and piers simulated
with beam element

Quadrilateral plane elements Kinematic constraints between
with elastic interface conditions piers and foundation



WITH CONTINUOUS DECK AND DEEP FOUNDATION

Kinematic constraints
between deck and piers

Deck and piers simulated
with beam element

Boundary conditions
at abutments

Pilecap simulated with
quadrilateral plane elements

Piles simulated with beam elements
between piers, piles and
Soil-structure interaction simulated with springs
foundation



3D MODELLING AND ANALYSIS OF RAILWAY BRIDGES
MODELLED AS PRESTRESSED FRAMES

Tendons

Deck, abutments and piers
simulated with beam element

Special boundary
conditions

Piles simulated with beam elements Kinematic constraints
Soil-structure interaction simulated with springs between piers and piles



3D MODELLING AND ANALYSIS OF CANTILEVER BRIDGES

Construction of cantilevers Closure of side spans

Closure of external spans Closure of mid span



3D MODELLING AND ANALYSIS OF CONSTRUCTION STAGES

CS1 CS3

CS2 CS4

(Construction Stages: CS)



3D MODELLING AND ANALYSIS OF ABUTMENTS
Quadrilateral plane
elements

between the surfaces

Quadrilateral plane
elements with elastic
interface conditions

Soil-structure interaction

Vertical support
simulating the rock bed


ON SITE FOLLOW UP ENHANCES COMPANY’S RELIABILITY & EXPERIENCE

CONSTRUCTION FOLLOW-UP AND CONSULTING



DETAILED CONSTRUCTION DESIGN AND ON-SITE SUPPORT

27.5 25 27.5
20

20
5
5

25
5
10

13.5 5 5 5 6.5 5 5 6.5 5 5 5 13.5

80



DETAILED CONSTRUCTION DESIGN AND ON-SITE SUPPORT
8.00

Model of analysis 1.00

3.00
6.00

3.00
1.00

2.15
1.30 10 20/ 20 L= 11.00 1.30

0.50
óôçí åëåýèåñç ð áñåé 7.90
Ü

1.00
20/ 10 L= 7.00
1.55

1.55
2.20
2.65

80

2.50
Üí ù 95 25/ 10
2.60 L= 7.90 2.60
95 20/ 10 L= 7.00 95 20/ 10 L= 7.00

2.20

2.20
2.20 êÜôù 95 25/ 10 2.20

9.50
2.50

8.50
L= 7.90

25/ 10 L= 9.40

25/ 10 L= 9.40
Üí ù 80

êÜôù 80
Ü

Ü
9.40 óôçí åëåýèåñç ð áñåé

L= 12.00
L= 12.00

9.40 óôçí åëåýèåñç ð áñåé

2.50
L= 7.00

20/ 20
20/ 20
10

10
80 20/ 10
2.65

2.20
1.55

1.55

1.00
10 20/ 20 L= 11.00

0.50
1.30 óôçí åëåýèåñç ð áñåé 7.90
Ü 1.30
2.15

Required reinforcement
3.10 1.80 3.10

PILECAP REINFORCEMENT PIER M1D (PLAN-VIEW)
SCALE 1:50

PILECAP

On-site support

Reinforcement tables


ON-SITE SUPPORT


HUMAN RESOURSES OF ODOTECHNIKI LTD


PARTNER AND DIRECTOR OF ODOTECHNIKI LTD

KONSTANTINOS SEFEROGLOU, Geotechnical Engineer, M.Sc.

www.linkedin.com/pub/konstantinos-seferoglou/2b/286/a

Areas of expertise:
• Extensive conceptual design experience on civil engineering, mainly infrastructure projects;
• Extensive experience in team leadership and support of multidiscipline groups;
• Geotechnical investigation, monitoring programming and evaluation;
• Tunnelling, tunnel portal analysis & design, cut & cover design;
• Slope stabilization, retaining structures, rock fall protection design;
• Assessment of slide stabilization and design of remedial measures;
• Embankment design, earthworks reconstruction and upgrade;
• Bridge foundation and deep foundation design;
• Construction follow up consulting & value engineering;
• Client and authorities communication skills;
• Total design management and coordination.


ASSOCIATES OF ODOTECHNIKI LTD

ISABELLA VASSILOPOULOU, Structural Engineer, Ph.D.

www.linkedin.com/pub/isabella-vassilopoulou/46/871/304

Areas of expertise:
• Structural analysis and design with emphasis on infrastructure design;
• Resistance of the structural system, the elements and the cross-sections;
• Investigation and solution proposal for earthquake-resistant design with real life experience in the local
industry planning and execution;
• Involvement in analysis and design of structures under extreme loading conditions, including both seismic
and wind settings;
• Inspection and assessment of nonlinear static and dynamic structural behaviour. Concentration on tension
structures with the engagement of finite element method;
• Preparation or supervision of construction drawings.



EVA XENOU, Structural Engineer, M.Sc.

www.linkedin.com/pub/eva-xenou/46/3bb/b00

Areas of expertise:
Structural analysis and design of structures (mainly infrastructure related civil engineering projects) including:
• 3D modelling and linear/non-linear numerical analyses;
• Resistance of the structural system, the elements and the cross-sections;
• Static analysis of structures under permanent, live, accidental, thermal and ground-settlement loads;
• Dynamic analysis of structures under seismic combinations;
• Foundation bearing capacity;



LEFTERIS CHRISOS, Structural Engineer

www.linkedin.com/pub/lefteris-chrisos/53/26/353

Areas of expertise:
• Structural analysis and design of structures;
• 3D modelling and linear/non-linear numerical analyses;
• Extensive experience on structural analysis and design of metro stations, buildings and bridges;
• Dynamic analysis of structures under seismic combinations;



PETROS FORTSAKIS, Geotechnical Engineer, Ph.D.

www.linkedin.com/pub/petros-fortsakis/24/a7a/368

Areas of expertise:
• Geotechnical analysis and design with emphasis on infrastructure projects, mainly focused on
evaluation of geotechnical investigation data, tunnel design, foundation design, landslide rehabilitation,
slope stability;
• Non-linear numerical analyses (2D & 3D) for the simulation of complex geotechnical environment and
construction procedures;
• Development of geotechnical database for the storage and evaluation of geotechnical, design,
construction and monitoring data;
• Risk analysis in geotechnical projects (sensitivity analysis, probabilistic analysis, reliability based
design);
• Structural design of conventional structures.



GEORGIOS PROUNTZOPOULOS, Geotechnical Engineer, Ph.D.

www.linkedin.com/in/prountzopoulos

Areas of expertise:
• Design of tunnels with focus on the specific engineering geological and geotechnical behaviour of rock and
soil formations;
• Tunnel face stability, tunnel face reinforcement and protection design, using rational methods, with focus
on face nailing and steel tube umbrella in shallow tunnels;
• Numerical analyses with the use of finite element codes;
• Evaluation of geotechnical investigation data for rocks and soils;
• Design of geotextile reinforced soil structures, for use in road and rail embankments, retaining structures,
bridge foundations;
• Landslide rehabilitation;
• Stability of big scale slope cuts in large open mines;
• Risk assessment associated with civil engineering works due to rock falls and landslides in highways and
secondary roads.


FRAGISKOS CHRYSOHOIDIS, Engineering Geologist, M.Sc.

www.linkedin.com/pub/fragiskos-chrysohoidis/48/808/a59

Areas of expertise:
• Geotechnical Investigation | Planning, Supervision & Evaluation;
• Geological and Geotechnical Design (field and desk work);
• Geotechnical Monitoring | Scheduling and Assessment.


ODOTECHNIKI LTD

CONTACT US FOR MORE INFORMATION

e-mails: info@odotechniki.gr, odotechniki@odotechniki.gr
Tel. +30 210 8228052, +30 210 8222127, Fax. +30 210 8233003

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