AMCM_program v2.indd

Introduction
Wrocław University of Technology is honoured to organize the 8th International Conference AMCM 2014
– Analytical Models and New Concepts in Concrete and Masonry Structures. After successful seven
previous editions of the conference taking place in Białystok (1993), Łódź (1996), Wrocław / Świeradów
(1999), Kraków (2002), Ustroń/Gliwice (2005), Łódź (2008) and Kraków (2011) the AMCM 2014 is held in
Wrocław (Poland) on June 16-18, 2014.
The main aim of the Conference is to present results of the latest works in concrete and masonry
structures modelling and analysis, as well as to review new concepts and interesting projects. With the
expertise brought by the prominent academics, researchers, designers and specialists from practice
representing many countries we are looking forward to provide an excellent forum to exchange ideas and
to progress the field of concrete and masonry structures. The three-day conference will be filled with
a variety of session formats. The technical programme will include plenary and keynote lectures, invited
sessions and presentations of reviewed papers.
Main Topics
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2
Advances in reinforced and pre-stressed concrete structures
Analytical and numerical models for concrete structures
Analytical and numerical models for masonry structures
Application of FRP materials – theory, practice and new codes
Behaviour and application of HPC structures
Durability assessment and environmental effects on concrete and masonry structures
Effects of cyclic and long-term loading on concrete and masonry structures
Structural concrete in complex stress state
Masonry in complex stress state
Models and numerical simulations for concrete at macro / meso / micro-scales
Models for analysis of concrete and masonry structures according to new codes
Performance based design of concrete and masonry structures
Conference Committees
Scientific Committee
Advisory Committee
Chairman Andrzej AJDUKIEWICZ, Poland
Co-Chairman Jan BIEŃ, Poland
Jan BILISZCZUK, Poland
Wit DERKOWSKI, Poland
Andrzej GARSTECKI, Poland
Dariusz GAWIN, Poland
Ryszard KOWALCZYK, Poland
Maria KAMIŃSKA, Poland
Mieczysław KAMIŃSKI, Poland
Michał KNAUFF, Poland
Renata KOTYNIA, Poland
Jan KUBICA, Poland
Wiesław KURDOWSKI, Poland
Czesław MACHELSKI, Poland
Cezary MADRYAS, Poland
Jerzy PAMIN, Poland
Jan PIEKARSKI, Poland
Wojciech RADOMSKI, Poland
Jacek ŚLIWIŃSKI, Poland
Andrzej WINNICKI, Poland
Szczepan WOLIŃSKI, Poland
Krzysztof ŻÓŁTOWSKI, Poland
Hakim ABDELGADER, Libya
György BALÁZS, Hungary
Mikael W. BRAESTRUP, Denmark
Milan CHANDOGA, Slovakia
Michael N. FARDIS, Greece
Hans R. GANZ, Switzerland
Steinar HELLAND, Norway
Paulo LOURENÇO, Portugal
Herbert MANG, Austria
Urs MEIER, Switzerland
Marco MENEGOTTO, Italy
Kenneth W. NEALE, Canada
Piotr NOAKOWSKI, Germany
Takafumi NOGUCHI, Japan
Andrzej S. NOWAK, USA
Stan PIETRUSZCZAK, Canada
Maria A. POLAK, Canada
Lambert J. SLUYS, The Netherlands
Luc TAERWE, Belgium
Joost C. WALRAVEN, The Netherlands
Organizing Committee
Chairman Jan BILISZCZUK, Poland
Co-Chairman Paweł HAWRYSZKÓW, Poland
Janusz BASZCZAK, Poland
Olga BASZCZAK, Poland
Tomasz KAMIŃSKI, Poland
Marta KNAWA-HAWRYSZKÓW, Poland
Marcin MUMOT, Poland
Olga SZYMCZYK, Poland
Tomasz WORSZTYNOWICZ, Poland
Marcin WRZESIŃSKI, Poland
3
General Programme
Building
Congress
Centre
Building D-20
Time
7:30-8:15
Registration
8:15-9:00
Opening ceremony
Congress
Centre
Building D-20
4
Building
Time
th
June 17 , 2014
8:00-9:00
Keynote lectures 2
9:00-10:00
Keynote lectures 1
9:00-10:00
Invited lectures
10:00-10:30
Coffee-break
10:00-10:30
Coffee-break
10:30-12:00
Session 1
10:30-12:00
Session 4
12:00-12:30
Coffee-break
Congress
Centre
Building D-20
12:00-12:30
Coffee-break
12:30-14:00
Session 2
12:30-14:00
Session 5
14:00-15:00
Lunch
14:00-15:00
Lunch
15:00-16:30
Session 3
15:00-16:30
Session 6
18:30-19:30
Concrete Structures
Section KILiW
PAN Meeting
19:30-22:30
Welcome reception
19:30-22:30
Gala dinner
Sky Tower
Building
th
June 16 , 2014
Time
th
June 18 , 2014
8:00-9:00
Keynote lectures 3
9:00-9:30
Coffee-break
9:30-11:00
Session 7
11:00-11:30
Coffee-break
11:30-13:00
Session 8
13:00-14:00
Lunch
14:00-15:30
Session 9
15:30-16:00
Closing ceremony
Town Hall
Detailed Programme
16th June (MONDAY)
Start
End
08:15
09:00
08:15
8:15 – 09:00
Opening ceremony
Chairs: Andrzej Ajdukiewicz, Jan Bień, Jan Biliszczuk, Paweł Hawryszków,
Jerzy Hoła, Eugeniusz Hotała, Cezary Madryas
1
Jan Biliszczuk
2
Andrzej Ajdukiewicz
3
Jan Bień
4
Paweł Hawryszków
09:00
16th June (MONDAY)
Place:
Congress Hall 10AC
WELCOME
INFORMATION ABOUT AMCM CONFERENCES
INFORMATION ABOUT POLAND, WROCŁAW AND WROCŁAW
UNIVERSITY OF TECHNOLOGY
ORGANIZING INFORMATION
9:00 – 10:00
Keynote lectures 1
Start
End
9:00
10:00
09:00
09:30
K1
Jan Bień, Tomasz Kamiński,
Mieszko Kużawa
09:30
10:00
K2
Petr Hajek
Chairs: Andrzej Ajdukiewicz, Steinar Helland
Place:
Congress Hall 10AC
VERIFICATION OF NUMERICAL MODELS OF CONCRETE BOX
BRIDGES BASED ON LOAD TEST RESULTS
INTEGRATED LIFE CYCLE ASSESSMENT OF CONCRETE
STRUCTURES –CONTRIBUTION TO SUSTAINABLE CONCRETE
CONSTRUCTION
5
16th June (MONDAY)
Session 1
ADVANCES IN REINFORCED AND PRESTRESSED CONCRETE STRUCTURES
Start
End
10:30
12:00
10:30
10:45
1
10:45
11:00
2
11:00
11:15
3
11:15
11:30
4
Wojciech Lorenc
Chairs: Jan Biliszczuk, Paweł Hawryszków
Andrzej Ajdukiewicz,
Szymon Dawczyński,
Janusz Brol
Wit Derkowski,
Bartłomiej Słyś,
Maciej Szmit
Krystyna Januszkiewicz,
Marcin Giedrowicz
11:30
11:45
5
Andrzej Winnicki,
Michał Szczecina
11:45
12:00
6
Carlos Zanuy,
Juan M. Gallego,
Luis Albajar
16th June (MONDAY)
6
10:30 – 12:00
Place:
Congress Hall 10AC
REUSE OF REINFORCED CONCRETE PRECAST BRIDGE BEAMS
EFFECT OF STRANDS' ANCHORAGE SYSTEM IN PC RAILWAY
SLEEPERS ON BEHAVIOUR OF ITS RAIL SEAT ZONE EXPERIMENTAL RESEARCH
CONCRETE AS COMPONENT OF THE NON-LINEAR SHAPED
STRUCTURAL "SKIN" IN CURRENT ARCHITECTURE
STEEL-CONCRETE COMPOSITE SECTIONS WITH THICK
CONCRETE PLATES
NUMERICAL MODELS AND ANALYZES OF RC FRAME CORNERS
UNDER OPENING BENDING MOMENT
FAILURE MODE AND STRENGTH OF VARIABLE DEPTH RC
BEAMS WITHOUT STIRRUPS
12:30 – 14:00
Session 2
APPLICATION OF FRP MATERIALS - THEORY, PRACTICE AND NEW CODES
Start
End
12:30
14:00
12:30
12:45
1
12:45
13:00
2
13:00
13:15
3
13:15
13:30
4
13:30
13:45
5
13:45
14:00
6
Place:
Congress Hall 10AC
FINITE ELEMENT MODELLING OF CONCRETE COLUMNS
WRAPPED WITH SFRP AND CFRP SHEETS
EFFICIENCY OF THE TEXTILE FABRICS USED AS
REINFORCEMENT OF THIN-WALLED CONCRETE PLATES AND
FOR THE STRENGTHENING OF RC-COLUMNS
PROPERTIES OF SRP COMPOSITES AND THEIR EFFECT ON
DESIGN PROCEDURES
FLEXURAL BEHAVIOUR OF TWO-SPAN CONCRETE SLABS
REINFORCED WITH GLASS FIBRE REINFORCED POLYMER (GFRP)
STRENGTHENING OF RC SLABS WITH PRESTRESSED AND
PASSIVE NEAR SURFACE MOUNTED CFRP STRIPS –
EXPERIMENTAL TESTS
NUMERICAL STUDY OF THE FLEXURAL BEHAVIOUR
OF GFRP RC BEAMS
Chairs: Renata Kotynia, Wojciech Lorenc
Khaled Abdelrahman,
Raafat El-Hacha
Andrzej Ajdukiewicz,
Bernard Kotala,
Marek Węglorz
Rafał Krzywoń
Paweł Olbryk,
Piotr Szymczak,
Maria Kamińska
Marta Przygocka,
Krzysztof Lasek,
Renata Kotynia
Maciej Szumigała,
Dawid Pawłowski
16th June (MONDAY)
Start
End
15:00
16:30
15:00 – 16:30
Session 3
DURABILITY ASSESSMENT AND ENVIRONMENTAL EFFECTS ON CONCRETE AND
MASONRY STRUCTURES
Place:
Congress Hall 10AC
Chairs: Jan Bień, Tomasz Kamiński
15:00
15:15
1
15:15
15:30
2
15:30
15:45
3
15:45
16:00
4
16:00
16:15
5
16:15
16:30
6
Tomasz Z. Błaszczyński,
Maciej Król
Jean-François Destrebecq,
Piotr Gwoździewicz,
Marcin Midro
Sergii Guzii,
Pavlo Kryvenko,
Volodymyr Kyrychok
Nikolai Makridin,
Gennadii Boldyrev,
Irina Maksimova,
Ilja Idrisov
Gerd-Jan Schreppers,
Ane De Boer,
David Begg
Arkadiusz Witek,
Dariusz Gawin
DURABILITY OF GREEN-CONCRETES
DURABILITY OF REINFORCED CONCRETE BRIDGE MEMBERS:
COMPARISON BETWEEN ANALYTICAL APPROACH AND IN-FIELD
INVESTIGATION
TECHNOLOGICAL FEATURES OF THE APPLICATION
GEOCEMENT COATINGS TO PROTECT THE CONCRETE FROM
EXPOSURE SOLUTIONS OF AMMONIUM SALTS
AN EXPERIMENTAL STUDY ON ACOUSTIC EMISSION ENERGY
AT DESTRUCTION OF CONCRETE
ASSESSING THE CAPACITY OF EXISTING CONCRETE
STRUCTURES USING STIFFNESS ADAPTATION
EFFECT OF POLIPROPYLENE FIBRES ON PORE PRESSURE IN
HEATED CONCRETE - EXPERIMENTAL AND NUMERICAL STUDY
7
17th June (TUESDAY)
Keynote lectures 2
Start
End
08:00
09:00
08:00
08:30
K1
08:30
09:00
K2
Place:
Congress Hall 10AC
Chairs: Takafumi Noguchi, Stan Pietruszczak
Michael N. Fardis,
Dionysis Biskinis,
Sofia Grammatikou
Harald S. Müller,
Raphael Breiner,
Vladislav Kvitsel
17th June (TUESDAY)
RC MEMBERS IN CYCLIC LOADING: STRENGTH, DEFORMATION
CAPACITY, FAILURE MODES
NEW PREDICTION MODELS FOR CREEP AND SHRINKAGE IN FIB
MC 2010 - BASICS, CHARACTERISTICS AND RELIABILITY
9:00 – 10:00
Invited lectures
Start
End
09:00
10:00
09:00
09:30
L1
Joost Walraven
COMMENTS ON MC 2010
09:30
10:00
L2
Andrzej Nowak
CALIBRATION OF BRIDGE DESIGN CODE FOR SERVICEABILITY
LIMIT STATES (AASHTO)
Chairs: Takafumi Noguchi, Stan Pietruszczak
17th June (TUESDAY)
8
8:00 – 9:00
Place:
Congress Hall 10AC
10:30 – 12:00
Session 4
ANALYTICAL AND NUMERICAL MODELS FOR CONCRETE STRUCTURES
Start
End
10:30
12:00
10:30
10:45
1
Rafat Edlebi,
Rwaida Abbas
10:45
11:00
2
Aikaterini Genikomsou,
Maria Anna Polak
11:00
11:15
3
Paweł Hawryszków
11:15
11:30
4
Janusz Hołowaty
CREEP IN CEMENT CONCRETE IN CONVENTIONAL MODELS
11:30
11:45
5
Barbara Klemczak,
Maciej Batog
VALIDATION OF ANALYTICAL MODELS FOR COMPRESSIVE
STRENGTH DEVELOPMENT OF CONCRETES WITH BLENDED
CEMENTS
11:45
12:00
6
Artur Kotarski,
Zdzisław Więckowski
Chairs: Michael Fardis, Andrzej Nowak
Place:
Congress Hall 10AC
TYPICAL STUDY OF DYNAMIC RESPONSE OF REINFORCED
CONCRETE PIER OF FRAME BRIDGES UNDER RAILWAYS
MOVING LOADS AT DIFFERENT SPEEDS
FEA OF RC SLABS UNDER STATIC AND CYCLIC LOADINGS
BASED ON DAMAGE PLASTICITY MODEL
ADVANTAGES OF USING CONCRETE DECKS IN FOOTBRIDGES
WITH REFERENCE TO DYNAMIC STRUCTURE SENSITIVITY
FINITE ELEMENT ANALYSIS OF SPIRAL REINFORCED COLUMN
17th June (TUESDAY)
Start
End
12:30
14:00
12:30
12:45
12:30 – 14:00
Session 5
ANALYTICAL AND NUMERICAL MODELS FOR CONCRETE STRUCTURES
Chairs: Wit Derkowski, Jan Kubica
1
Marek Lechman
12:45
13:00
2
Paweł M. Lewiński,
Przemysław P. Więch
13:00
13:15
3
Berislav Medić
13:15
13:30
4
13:30
13:45
5
13:45
14:00
6
Piotr Noakowski,
Andreas Harling,
Łukasz Zdanowicz
Matthias Pahn,
Milan Schultz-Cornelius
Stan Pietruszczak,
Ehsan Haghighat
17th June (TUESDAY)
Place:
Congress Hall 10AC
GENERALIZED APPROACH TO THE RESISTANCE OF RC CROSSSECTIONS SUBJECTED TO BENDING WITH AXIAL FORCE
ANALYTICAL MODEL AND NUMERICAL RESEARCH OF
COMPOSITE BEAMS WITH HORIZONTAL STUDS
BEHAVIOUR OF AERATED CONCRETE BUILDINGS IN CASE OF
EARTHQUAKE LOAD
THE CRACK WIDTH PREDICTION IN EN 13084 BACKGROUND,
METHOD, RELIABILITY, APPLIANCE
FILIGREE FACADES OF (U)HPC
MODELLING OF FRACTURE PROPAGATION IN CONCRETE
STRUCTURES USING A CONSTITUTIVE RELATION WITH
EMBEDDED DISCONTINUITY
15:00 – 16:30
Session 6
ANALYTICAL AND NUMERICAL MODELS FOR MASONRY STRUCTURES
Start
End
15:00
16:30
15:00
15:15
1
15:15
15:30
2
15:30
15:45
3
Marta Kałuża,
Jan Kubica
15:45
16:00
4
16:00
16:15
5
16:15
16:30
6
Fadi Oudah,
Raafat El-Hacha
João M. Pereira,
José Campos,
Paulo B. Lourenço
Leszek Szojda,
Chiara Agneloni
Place:
Congress Hall 10AC
EXPERIMENTAL AND ANALYTICAL STUDY OF THE BEHAVIOUR
OF MASONRY STRUCTURES
STRESS-STRAIN CHARACTERISTICS OF BRICK MASONRY UNDER
COMPRESSIVE CYCLIC LOADING
BEHAVIOUR OF UNREINFORCED AND REINFORCED MASONRY
WALLS MADE OF AAC BLOCKS SUBJECTED TO VERTICAL
SHEARING
SEISMIC EVALUATION OF RC MOMENT-RESISTING FRAMES
WITH MASONRY INFILL WALLS
Chairs: Mieszko Kużawa, Piotr Noakowski
Dimitriy Artyushin,
Gennadii Boldyrev
Iwona Galman,
Jan Kubica
MASONRY INFILL WALLS UNDER BLAST LOADING USING
CONFINED UNDERWATER BLAST WAVE GENERATORS (WBWG)
MATERIAL MODEL FOR MASONRY WITH ORTHOTROPIC
BEHAVIOUR
9
18th June (WEDNESDAY)
8:00 – 09:00
Keynote lectures 3
Start
End
8:00
9:00
08:00
08:30
K1
Renata Kotynia
ANALYTICAL MODELS FOR REINFORCED CONCRETE
MEMBERS STRENGTHENED IN SHEAR WITH FRP COMPOSITES
08:30
9:00
K2
Steinar Helland
fib, ISO, CEN AND NATIONAL CONCRETE CODES - ROLES AND
INTERACTION
Chairs: Joost Walraven, Szczepan Woliński
18th June (WEDNESDAY)
Start
End
9:30
11:00
9:30 – 11:00
Session 7
ANALYTICAL AND NUMERICAL MODELS FOR CONCRETE STRUCTURES
Chairs: Maria Polak, Andrzej Winnicki
9:30
9:45
1
Attila Puskás,
Ofelia Corbu,
Henriette Szilagyi,
Mihai Bindea,
Gábor Álmos Sándor,
Zoltán Kiss
9:45
10:00
2
Vasil’ Redchenko
10:00
10:15
3
10:15
10:30
4
10:30
10:45
5
10:45
11:00
6
10
Place:
Congress Hall 10AC
Viktorija Volkova
Jerzy Wawrzeńczyk,
Adam Kłak
Jerzy Wawrzeńczyk,
Wioletta Kozak
Szczepan Woliński
Place:
Congress Hall 10AC
BENDING BEHAVIOUR OF CONCRETE CAST IN SUCCESSIVE
LAYERS – MODELS AND EXPERIMENTS
MODELS CRACKING IN CONCRETE DUE TO REINFORCEMENT
CORROSION
DAMAGE IDENTIFICATION ON A STEEL REINFORCED BEAM
USING PHASE TRAJECTORIES
PREDICTION OF FREEZE-THAW RESISTANCE OF GGBFS
CONCRETE BASED ON ANN MODELS
A METHOD OF ANALYZING POROSITY STRUCTURE IN AIRENTRAINED CONCRETE
ASSESSMENT OF THE RESISTANCE MODELS UNCERTAINTY
IN REINFORCED CONCRETE MEMBERS
18th June (WEDNESDAY)
Session 8
ANALYTICAL AND NUMERICAL MODELS FOR CONCRETE STRUCTURES
Start
End
11:30
13:00
11:30
11:45
1
11:45
12:00
2
12:00
12:15
3
12:15
12:30
4
12:30
12:45
5
12:45
13:00
6
Place:
Congress Hall 10AC
ENERGY DISSIPATION PROPERTIES OF FIBRE REINFORCED
Hakim Abdelgader,
CONCRETE MEMBERS SUBJECTED TO STATIC CYCLIC
Ali El-Baden
LOADING
ASSESMENT OF SPAN PRECAMBER IN PRESTRESSED
Jan Biliszczuk,
CONCRETE FLYOVER CONSTRUCTED ON MOVABLE
Robert Toczkiewicz
SCAFFOLDING
Olga Boldyreva,
EXPERIMENTAL TESTS OF CROSSBAR FRAME CONSOLES OF
Victor Comarov,
MULTISTOREY REINFORCED CONCRETE FRAMEWORKS
Sergey Boldyrev
Aldemon Bonifácio,
Flávio Barbosa,
Michèle Farage, NUMERICAL EVALUATION OF LIGHTWEIGHT AGGREGATE
Fernanda Moreira, CONCRETE MECHANICAL PROPERTIES
Julia Mendes,
Sophie Ortola
Vladimir Červenka,
DESIGN OF CONCRETE STRUCTURES BY NUMERICAL
Jan Červenka,
SIMULATION
Radomir Pukl
Ghoson Ibrahim Danhash,
COMPARISON BETWEEN BILINEAR AND POWER LOW
Mayada Ahmad Kousa,
SOFTENING CURVE OF CONCRETE USING INVERSE ANALYSIS
George Yakoub Wardeh
Chairs: Piotr Gwoździewicz, Jerzy Onysyk
18th June (WEDNESDAY)
Start
End
14:00
15:30
11:30 – 13:00
14:00 – 15:30
Session 9
MODELS FOR ANALYSIS OF CONCRETE AND MASONRY STRUCTURES
ACCORDING TO NEW CODES
Place:
Congress Hall 10AC
RELIABILITY ANALYSIS OF REINFORCED CONCRETE FLAT SLAB
SYSTEM WITH SHEAR REINFORCEMENT AGAINST PUNCHING
SHEAR FAILURE
CARRYING CAPACITY OF AXIALLY LOADED HIGH-STRENGTH
REINFORCED COLUMNS INTERSECTED BY SLAB OF NORMAL
STRENGTH CONCRETE
DEFORMABILITY OF CEMENT CONCRETE IN EUROCODE 2
Chairs: Vladimir Červenka, Maciej Hildebrand
14:00
14:15
1
14:15
14:30
2
14:30
14:45
3
14:45
15:00
4
15:00
15:15
5
15:15
15:30
6
Georgios Balomenos,
Mahesh Pandey,
Maria Anna Polak
Michał Gołdyn,
Łukasz Krawczyk,
Tadeusz Urban
Janusz Hołowaty
Łukasz Krawczyk,
Michał Gołdyn,
Tadeusz Urban
Albert LantoukhLiashchenko,
Kostiantyn Medvediev,
Fedir Iatsko
Izabela Skrzypczak,
Lidia Buda-Ożóg
STRENGTH OF SLABS WITH PUNCHING SHEAR
REINFORCEMENT
COMPARATIVE ANALYSIS OF CARRYING CAPACITY AND
RELIABILITY OF REINFORCED CONCRETE BEAMS
IN ACCORDANCE WITH NATIONAL REGULATIONS AND
EUROCODE 2
INFLUENCE OF COMPLIANCE CRITERIA ON THE VALUE OF
RELIABILITY INDEX
11
18th June (WEDNESDAY)
Start
End
15:30
16:00
15:30
12
16:00
15:30 – 16:30
Closing ceremony
Chairs: Andrzej Ajdukiewicz, Jan Bień, Jan Biliszczuk, Paweł Hawryszków
1
Andrzej Ajdukiewicz,
Jan Bień
2
Paweł Hawryszków
3
Jan Biliszczuk
Place:
Congress Hall 10AC
GENERAL DISCUSSION
CONFERENCE SUMMARY
ANNOUNCEMENT OF AMCM 2017 CONFERENCE ORGANIZER
Evening Events
Welcome reception
Place: Sky Tower
The tallest building in Poland.
Address: Powstańców Śląskich 95, 53-332 Wrocław
Date: 16th June (MONDAY), Time: 19:30-22:30
ƒ
Welcome of participants
ƒ
Concert (jazz)
Gala dinner
Place: Town Hall, Świdnicka Cellar
The oldest restaurant in Europe – dating back to 1273.
Address: Rynek Ratusz 1, 50-107 Wrocław
Date: 17th June (TUESDAY), Time: 19:30-22:30
ƒ
Gala dinner
ƒ
Concert (string quartet)
Excursions
Wrocław sightseeing (with a tour guide)
Date: 17th June (TUESDAY)
Time: 10:00-12:00
Cost: 30 EUR / 120 PLN
Technical visit (Africarium-Oceanarium construction site)
Date: 18th June (WEDNESDAY)
Time: 9:00-11:00
Cost: FREE
13
Conference Sponsors
Organizers
Institutional Patronage
Special Sponsors
Standard Sponsors
14
Media Patronage
Commercial Exhibition
List of Exhibitors
1
2
15
Location and plan of WUT Congress Centre
16