Short Presentation of the Company

8/11/2019 Short Presentation of the Company

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J. MARNERIS & ASSOCIATES

STRUCTURAL CONSULTANTS LTD

ISO 9001:2008 TUV

www.marneris.gr


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STRUCTURAL CONSULTANTS LTD

www.marneris.gr

4 Perikleous str. N. Psichiko

154.51 Athens Greece

tel. 0030 210 6721212

fax 0030 210 6743508

[email protected]


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CONTENTS 1. WHO WE ARE

2. WHAT WE DO

3. CLIENTS

4. AREAS OF CONCENTRATION

A. Buildings & Infrastructure

I. Concrete Structures II. Steel Structures

III. Infrastructure

B. Retrofitting

C. Advisory Work

5. CUTTING EDGE TECHNOLOGIES

a. Seismic Protection

b. The JM & A proprietary PARSANT Retrofit Methodology

6. COMPANY CREDENTIALS


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Leading Greek StructuralConsultancyOver the past 25 years JM&A has established itself as

one of the leading structural engineering consultancies

in Greece. Prominent Greek and international architects,

responsible for high-profile and challenging projects, have

turned to JM&A for solutions which are both high-quality

and cost-effective as well as inventive, practical and above

all reliable.

The architects preferredConsultancyJM&A takes a particular pride in providing the architect with

a broad range of conventional and inventive solutions to

best meet client requirements. Where the contractor calls

for modifications to the original design JM&A is there to

support the architect in meeting critical time constraints.

WHOWE ARE


An efficientmulti-disciplinarydelivery teamUnlike some other multi-disciplinary

consultancies the quality of overall design is

in no way compromised by any insistence on

exclusively employing in-house expertise. JM&A

will always meet the brief in the most effective

manner possible, calling on a roster of outside

experts and has indeed established a lengthy

and proven track record in such collaboration

in order to offer the client a maximised and

fully co-ordinated proposal and thus a keen

competitive edge.


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Cutting edgedesignJM&A has the in-depth structural engineering

expertise to produce the cutting edge design

demanded by the architect in combining ge-

ometry and materials. Buildings undertaken to

date range from hospitals and shopping malls

to state of the art retrofits (upgrades), which

breathe new life into old hospitals, schools, ho-

tels or other buildings, both public and private,where uninterrupted functionality is required.

WHOWE ARE


Advancedseismic designAs the Mediterranean area is seismically active,

seismic design is a prerequisite of most JM&A

projects. Cost-effective design for both newand existing building retrofits is based on linear

/ non-linear dynamic analysis. JM&A special-

izes in the latest technological developments

for seismic isolation (base isolators, tune mass

dampers etc) in order to achieve

zero tolerance of cracking on the interior

decoration of sensitive structures (theatres,

hospitals etc);

uninterrupted functionality of recovery-criti-cal strategic structures such as hospitals.

Seismic isolation was not unknown to the an-

cient Greeks: the Parthenon was indeed the

predecessor of todays seismically isolated

buildings, having a thin layer of sand in its

foundations emulating a seismic isolator.

Innovative and cost-effectiverestoration of ageingstructuresJM&A has had extensive involvement in retro-

fitting (upgrading) existing structures, mainly

in order to achieve compliance with todays

demanding seismic codes. This has led to the

development of our patent proprietary meth-

odology (PARSANT) which was first presented

at the 14thWorld Conference on Earthquake

Engineering in Beijing in 2008.

This low-cost innovative methodology makes

it possible to upgrade a building without inter-

rupting activity, thus providing a cost-effectivealternative to hitherto unavoidable demolition.

This methodology has been incorporated in

the stringent Greek Codes of Practice for ret-

rofits of existing structures.

OurKeyStrengths An ethical corporate philosophy A closely-knit team of highly experienced structural designers

Familiarity with US and European Codes

Design output of the highest standard, including exhaustively

detailed drawings

Prompt and exible response to changing requirements

emerging in the course of a project


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1. SHOPPING MALL:PIRAEUS HELIOS PLAZAPIRAEUS 2010A shopping mall with a gondola shaped steel

structure proposed at the top, supported by

inclined steel columns at the perimeter form-

ing a birds nest. Four floors and four un-

derground levels comprise a total area of

71.000m2. Precast hollow pre-stressed slabs

used extensively.

Challenging aspect: Due to poor soil condi-

tions and high water level, a slurry wall sys-

tem was prescribed during the excavation,

complemented by a pile-raft foundation

system.

Architects:

CHAPMAN & TAYLOR LTD, London

WHAT

WE DO



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WHATWE DO


2. OFFICE HEADQUARTERS:BAYER HELLAS

ATHENS 2002A 4 floor building -with 2 basements serving as

a parking lot- comprising a total area of 17.000

m2, in Athens (Maroussi area).

Between the two separate parts of the con-

crete buildings structure, a light steel structure

is erected that is pinned at one side and free to

sway at the other.

Challenging aspect: provisional anchored

piles system prescribed during excavations.

Architects

K. KYRIAKIDES & ASSOCIATES SA

Athens


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WHATWE DO


3. INFORMATIONTECHNOLOGY &COMMUNICATIONCOMPLEX: (ITCC)RIYADH SAUDI ARABIA2012

Seventeen buildings comprising a total gross

area of about 420.000m2.

Performed Tasks:

Design of all steel structures ( total area of

10.000m2)

Checking and correction of concrete struc-

tures (circa 2.500 elements)

Advisory services: preparation of 11 reportshandling construction discrepancies from

the original design, and demonstrating full

compliance with the US Codes.

Contractor:

J&P JOANNOU & PARASKEVAIDES

(SAUDI ARABIA) LTD


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WHATWE DO


4. SCHOOL: ARSAKIOELEMENTARY SCHOOLIOANINA 2003Classrooms made of reinforced concrete, with

multipurpose rooms made of steel and com-

posite members: Total area 5.500 m2.

Challenging aspect: elaborate details in the

steel structures dictated by the elegant ar-

chitectural design, and the requirement for a

curved steel roof.

Architects

DOMOS SA J. LEONTOPOULOS

Athens


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WHATWE DO


5. ATHENS METRO:ST. ANTONIOS METROSTATION,ATHENS 2003Sustainable design, with a total area of about

33.500 m2split in three levels. Top slab simul-

taneously serving as a highway bridge.

Challenging aspect: temporary anchored piled

walls going down to a depth of 20 m.

Contractor

J.V. AKTOR SA

X.I. KALOGRITSAS SA


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CLIENTS

PUBLICSECTOR


GREEK MINISTRIES Ministry of Aegean

Ministry of Agriculture

Ministry of Culture

Ministry of Defence

Ministry of Health

Ministry of Environment and Public Works

Ministry of External Aairs

EDUCATIONALINSTITUTIONS Aegean University

Arsakio (School Foundation)

Athens University British Council, Athens

Chania Polytechnic

Thrace University

GREEK PUBLIC UTILITYCOMPANIES Athens Metro (Attiko Metro SA)

Public Power Corporation (DEH)

Real Estate Organisation (KED)

Social Security System (IKA)

MUNICIPALITIES Athens

Chania-Crete

Heraklion-Crete

GREEK MILITARY General Sta of Greek Air Forces

General Sta of Greek Armed Forces

General Sta of Greek Naval Forces

HOSPITALS Greek Ministry of Health & The Association

for Children with Cancer

Greek Public Hospitals Administration

(DEPANOM) Psychiatric Hospital of Attica

MISCELLANEOUS Canadian Embassy, Athens

Greek Orthodox Church, Crete

CHANIA POLYTECHNIC


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BANKS Agricultural Bank of Greece

Commercial Bank of Greece

EFG Eurobank SA

Piraeus Industrial Bank SA (VIPETVA)

GREEK / FOREIGNCORPORATES BAYER Hellas

Helios Plaza Center

Hondos Center SA

Ionia Publications SA

LIDL Hellas

UNILEVER Hellas

WURTH Hellas SA

CLIENTS

PRIVATESECTOR

CONTRACTORS A. Kapetanides SA

J&P Joannou & Paraskevaides

(Saudi Arabia) LTD

J.V. GEK-Terna SA

J.V. JP-Avax SA Vioter SA

DEVELOPERS Bitsos Development SA

Ektasis Development SA

Hatsios Estate Development SA

P. I. Zouganelis Development SA

AGRICULTURAL BANKS ATHENS

IT CENTRE

SHIPPING CO OFFICES IN ATHENS


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A. Buildings & InfrastructureI. CONCRETE STRUCTURES

a. Non-Industrial

Administrative buildings

Air terminals Banks Conference halls

Garages Hospitals Hotels Houses

IT centers Military buildings Museums

Oce buildings Schools Shopping centers

Theaters Universities

b. Industrial

Hydroelectric Stations Industrial Complexes

Sanitary Facilities Silos Tanks & Reservoirs

Warehouses Workshops

PRECAST STRUCTURES

Architectural faade elements

Hotel Bungalows Houses

Military Projects Schools

AREAS OF

CONCENTRATION


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AREAS OFCONCENTRATION

A. Buildings & InfrastructureI. CONCRETE STRUCTURES


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A. Buildings & InfrastructureII. STEEL STRUCTURES

Conference halls Hangars

Stadiums and Athletic halls

Storage buildings Theaters



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A. Buildings & InfrastructureIII. INFRASTRUCTURES

AREAS OFCONCENTRATION Anchored piled retaining walls

Metro stations

Multi span river-crossing Bridges


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Highway Bridges

Tunnels Cut & Cover Method

A. Buildings & InfrastructureIII. INFRASTRUCTURES


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B. Retrofitting

Rather than demolish and rebuild, Retrofitting

enables the replacement of an ageing struc-

ture fast, at a low cost, and with no interruption

to its daily functions.The original framing structure may be even

strengthened and be able to comply with

stricter seismic codes, and higher loading

conditions (eg. through addition of floors, or

changes of use).

Administrative buildings Garages

Hospitals Houses Military buildings

Oce buildings Prisons Schools


Retrofit Work comprises: Assessment of existing structure

Laboratory testing to assess

strength of existing structural

elements

Repairs of the load bearing

structure elements

Local and overall strengthening of

the structure

Project management and

supervision services are oered for

all PARSANT applications


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Where deemed necessary

the patented proprietary

PARSANT methodology isutilized:

RETROFITTEDBUILDINGEMPLOYINGTHE PARSANTMETHODOLOGYDisruption of a buildings

function is avoided through the

introduction of additional pin

connected anti- seismic panels

on the outside perimeter of a

building.

RENOVATION AND UPGRADING

OF A MILITARY HOSPITALIn order to prolong the life of this old hospital(9.600 m2, typical RC frame with masonrywalls) a critical issue had to be addressed:

the reduction of the longitudinal side of thebuilding that was excessively long. To this endtwo expansion joints were introduced.

Project OwnerGREEK ARMED FORCES (General Staff)

B. Retrofitting


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providing advice onchallenging structuraldesign issuesJM&As excellent reputation is the source of a

constant flow of Assignments in connection

with complex/ challenging non- traditional

structural design issues. This ensures that

JM&A is kept up-to-date with emerging

requirements in the construction industry.

participation in internationaldesign competitions forGreek projectsOn numerous occasions, JM&A s co-operation

is being sought by Architects & Designers

of international acclaim in bidding for

important Greek projects.

auditing original structuraldesign & implemented designOwners of major projects normally JM&A long

standing public sector customers - appoint

JM&A at times to act as their auditor of the

submitted Structural Consultants design work.

Equally, a Contractor may appoint JM&A to

confirm that discrepancies between the original

and the implemented design, are in compliance

with the applicable Code.


CORFU OPERA THEATER

TEAM4 BDP MUENCHEN GMBH

NEW ACROPOLIS MUSEUM

VASQUEZ-ALVAREZ & OVE ARUP SA

SALONICA MILITARY HOSPITAL

ARCOPLAN AG, Switzerland

C. Advisory Work


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a. Seismic ProtectionSeismic engineering design capability involving

Base isolation and Passive Energy dissipation

through Dampers/ Tune Mass Dampers (pro-

cured from / designed In co-operation with

reputable International manufacturers):

BASE ISOLATION OF BUILDINGS

Rubber bearings installed in a buildings

foundations isolate the above ground part

of the building from any ground movement,

thus greatly reducing the magnitude of seismic

forces impacting the building. The resulting

marginally increased construction cost ( by

circa 5%) ensures that damages that may be

normally seen in non- structural elements

during an earthquake, are entirely avoided

irrespective of an earthquakes magnitude.

CUTTING EDGE

TECHNOLOGIES


ANTI-SEISMIC DAMPERS

These are passive seismic energy absorbing devices, in-

stalled directly into a buildings framing system (Fig. 1), or

inserted in the diagonal members of a PARSANT panel

(Fig. 2, please see section b. that follows). They are sophis-

ticated devices - usually of the fluid viscous or friction

type- and may absorb up to 40% of the seismic energy,

thus relieving the existing structure by an equal energy

amount. The structural analysis of such structures normally

employs non-linear methods through the use of specialized

Software.

TUNE MASS DAMPERS

These are independent oscillators, usually mounted on the

top level of buildings. During an earthquake, by swinging

in the opposite direction to that of the existing framing

structure, Tune Mass Dampers achieve a considerable

reduction in seismic forces and deflections.

Fig. 1

Fig. 2


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CUTTING EDGETECHNOLOGIES


b. The JM&A proprietaryPARSANT RetrofitMethodology* Subject methodology was awarded a pat-

ent in 2004, and was first presented inter-

nationally in the 14th World Conference on

Earthquake Engineering in Beijing, China

(October 2008). The Methodology has

been incorporated in the Greek Codes for

Strengthening / Repairing existing buildings

since 2008.

Strong steel panels are placed around a buildings out-

side perimeter and are rigidly connected to its existing

framing system. Dampers may be incorporated along the

diagonal members of the panels for seismic energy ab-

sorption purposes.

PARSANT is low cost, requires short construction time

and does not have an impact on a buildings internal

daily function.

Applications of the method include repairs of damaged

buildings, renovation of buildings, new floor additions,

and possibly increased loading assumptions.

*FOR A DETAILED POWER POINT PRESENTATION

OF THE PARSANT PLEASE SEE FOLLOWING LINK:

www.marneris.gr/Parsant/PRESENTATION.ppt


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The HistoryJ Marneris & Associates (JM &A) was founded 25 years ago by John

Marneris, M. Sc. Structural Engineering (1976, Distinction). The founder, in

the 10 year preceding period, had acquired significant international ex-

perience: first working for the International Consulting firm FRANC BA-

SIL INC (both in Athens and in Saudi Arabia), and subsequently for the

highly respected Greek Consulting firm AMTE SA of Professor S. Angeli-

dis (Athens).

The TeamJM & As long serving and closely knit team of Qualified Structural engi-

neers have a combined working experience of over 130 years (of which

over 100 years within JM & A), and are supported by 3 Assistant Struc-

tural engineers/ Draughts men.

ORGANIZATION CHART

COMPANY

CREDENTIALS



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COMPANYCREDENTIALS


The Design Workcompleted to dateStructural Designs for over

200 building / infrastructure

projects (for both the Private and

the Public Sector) comprising

enclosed space of over 800,000

sq m. have been completed

todate. (A comprehensive ProjectInventory is available upon

request).

The SoftwareSpecialist engineering Software

comprises well documented

and tested computer programs

such as AUTOCAD, STAAD-

PRO, SOFISTIK, ETABS, as well

as in-house developed programs

to cater for the various Design

Codes.

JM & A is:ISO 9001:2008

(TUV Nord Group) certified Structural

Engineering Consultancy

licensed for

- Highest Complexity Projects in Greece

(Registered Grade E Company)- NATO Projects (Registered with the

Greek Ministry of Defense)

fully conversant

with American and European Design

Codes.

fully operationalin Greek, English, and French

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