HDG Magazine 2_2009

2009

2/4 Hot Dip GalvanizingInternational Magazine | ISSN 1363-0148 | www.galvanizing.org.uk

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Amongst the gems in this edition are two types

of galvanized steel structure which were made

60 years apart and which say quite a lot about

the technologies of their day.

In post-war Europe, Bailey bridges allowed

the traffic of war-torn countries to get moving

again and rebuild their economies. They were

low-tech, easy to build and very rugged. But it

wasn’t just in countries where existing bridges

had been deliberately blown up; a fair few of

them were used in Britain where old bridges

had had to be replaced with something stron-

ger to carry the armour and munitions that

were being moved around. So it is excellent to

see that a Bailey bridge in Germany has been

galvanized and given a whole new life.

The second structure featured is at the other

end of the technology spectrum.

Mixing a relatively lightweight galvanized steel

frame with a tensile fabric covering allows

a large area such as an arena or a stadium

to be protected from the elements quickly

and economically.

I suspect that in 60 years time the tensile

fabric will have had to be replaced once

or twice, but the galvanized steel frame

shouldn’t.

My favourite though, is on the back page.

Fabricate a galvanized chain-link fence in the

same way that you would a piece of lace and

this is what you get. Brilliant. Municipal tennis

courts might never look the same again.

David Baron, Editor

Contents

2 Editorial

3 Rhythmic screen full of surprises Translucent façade

5 Dejo Offices, Wolvega

Simple, modular construction

6 Temporary yet permanent Tensile fabric architecture

10 Penthouse rejuvenates historical shelter Hybrid design

11 Galvanized steel on the Australian coast Durable, reliable and

economical

14 Full circle for Bailey Bridges Simple yet sustainable solution

16 Galvanizing In Detail

Front cover:

JD&D industrial building

Photo:

Architectural firm Stein Van Rossem bvba

Editorial

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Hot Dip Galvanizing | 3

Design

Architecture

Rhythmic screen full of surprisesTranslucent façade

By Gerard Reimerink


have received many plaudits for their idea

of providing an industrial location with a

friendly image.

BriefDe Decker company in Sint-Genesius-Rode,

Netherlands, manufacturer of bathroom and

kitchen equipment wanted to expand their

business premises.

There was a need for a new storage area and

a warehouse with a new showroom being built

on the roadside at the same time. The project

brief highlighted the importance of ease of use

of the final concept and that the budget be

strictly adhered to. The exiting site included a

mixture of building types all using different

building materials and design parameters.

The resulting impression was one of haphazard

design and a messy unfriendly environment.

The architect was therefore also given the task

of coming up with a solution that would inte-

grate the complex into a single coherent unit.

DesignFor the expansion of the industrial buildings,

rigid elevations were used in the shape of

simple rectangular boxes in a concrete frame

construction fitted with concrete armour

plating.

This project makes interesting use of simple galvanized grids as a façade system.

The variation in the structure of the grid panels are used effectively to break up large

areas. In this way a playful varying pattern is created in an extremely economical way

using simple materials which can be used in many ways.

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Architecture


The required unique identity was created by

designing a 7 metre high galvanized steel

screen around the existing and the new

buildings.

The solution included the use of galvanized

steel grids. Varying degrees of transparency

were obtained by using grids with different

mesh sizes and by placing the strips either

straight or at an angle.

As the various screens were placed at different

distances in front of the buildings, the density

and transparency was further accentuated.

A total of 1385 m2 grids were installed.

ResultThe screen is not a closed area but a translu-

cent area which shows the presence of the

various buildings (volumes) behind it.

Due to the variation in the mesh width and in

the direction of the strips, a holographic image

appears to pedestrians and road users.

The mesh has created a continuously changing

façade.

In some areas its density creates a completely

enclosed environment while at other instances

it varies from semi to totally transparent.

Lights have been fitted behind the facade

which helps to bring the building to life when

the sun has gone down and acts as a beacon

of light within the local environment.

Architect and photos:


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Dejo Offices, WolvegaSimple, modular construction

By Gerard Reimerink

DesignThe design consists of a simple, modular

construction: a rectangular low budget volume,

encased on its upper storeys in a shell of grids,

which are galvanized, and coated in a variety

of colours.

This shell, made up of a variety of grids

(differing in their colour, mesh width and

dimensions), functions as a ‘shop window’

to display the exterior wall products that are

manufactured in the adjacent construction

facility.

The shell also provides shading against the

sun and it defines the outer face of the

building. The uppermost layer has an over-

hang of 1.4 metres, giving the office block

more emphatic presence in the street than

the adjacent production hall.

‘Shop window’The company produces and supplies grids and

combination planking frames: these contain

stair treads with special cavities for other

materials such as wood or plastic.

The office building is situated parallel to

the street, aligned with the factory production

area. On the ground floor, in addition to offices

and related spaces, are a presentation hall, a

canteen and a changing room.

The upper storeys house the boardroom, a

meeting room and office space.

This office block is the smallest building on the

entire site, yet at the same time it forms the

company’s prestigious head office for visitors

and business contacts.

Galvanizing the grids not only provides cor-

rosion protection but the inherent toughness

provides steel with long-lasting and durable

protection against corrosion.

For walkway grids in particular, an important

factor is the way that the highly abrasion-resis-

tant alloy layers are formed on the steel.

In this way, even the narrow edges are pro-

tected in the long term, despite the constant

mechanical loading.

Project Data:

Design: Ir. E. Vreedenburgh, (Archipelontwerpers)

Den Haag

Construction: Lont Bouwbedrijf, Sint Annaparochie

Galvanized steel forms a striking construction material in the new office building

of Dejo Metaalindustrie in Wolvega. The new offices were built next to the company’s

production facility. As well as galvanized steel grids, the design incorporates

galvanized columns and beams.


Tensile fabric architecture is usually combined

with a network of steel to act as its support

mechanism. Due to the demands placed on the

external steel, galvanizing also has a vital role

to play.

Eden ProjectThe adaptable entertainment structure at the

world renowned Eden Project shows the versati-

lity of modern fabric design. The structure

comprises of 2000m2 of tailored roof mem-bra-

ne in white PVC coated polyester fabric

supported by seven 42m galvanized steel

radial arches and was completed in 2005.

The design of the system allows it to be easily

adapted to the Eden Project's changing seaso-

nal requirements: in winter it becomes the

UK's largest covered outdoor ice rink, in sum-

mer a concert stage and in-between a space

that can be used for exhibitions, shows or any-

thing that the Eden community can throw at it.

The stunning lightweight canopy was designed

and built by contractor Edwin Shirley Staging,

temporary building designer Bill Harkin and

structural engineer Buro Happold. The project

team were given just eight weeks to design,

build and commission the structure, including a

build period of three weeks.

Seven steel trusses in the form of arches,

each spanning 42m, were hoisted into position

and fitted with fabric infill panels to create

a waterproof, windproof shelter over the

ice rink, which has been built over Eden’s

central lake. The temporary structure is the

height of a three-storey building and can

accommodate 300 people at any one time.

The initial misconception that fabric architecture was a temporary building type has

over recent years become a thing of the past. The original visual delicacy offered

by early fabric structures is now enhanced by new technology to create spectacular

translucent structures that blur the definition and boundaries of external and

internal space.

Architecture

Temporary yet permanent Tensile fabric architecture

By Iqbal Johal

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Architecture

Royal Dublin Society ArenaThe Royal Dublin Society Arena was developed

to host equestrian events, including the annual

Dublin Horse Show. The society was originally

founded by members of the Dublin Philosophi-

cal Society as the ‘Dublin Society for improving

Husbandry, Manufactures and other Useful

Arts’. The stated aim of the ‘Dublin Society’

was therefore to promote the development of

arts, agriculture, industry and science in Ire-

land. The ‘Royal’ prefix was adopted in 1820

when George IV became Society patron.

The Society acquired its current premises at

Ballsbridge, Dublin in 1879. The premises

consist of a number of exhibition halls, a stadi-

um (the ‘RDS arena’), meeting rooms, bars,

restaurants and a multi purpose venue named

‘RDS Simmonscourt Pavilion’.

With complete flexibility in stage and seating

layout and excellent acoustics, the RDS has

played host to a variety of live events including

some of the biggest names in rock, pop and

classical music.

In 2007 and 2008 the RDS arena’s capacity

was expanded to 18,250 (with additional

seated stands being built) and the venue is

now used by the Leinster Rugby team for home

Heineken Cup and Magners League games.

ESS (part of the Edwin Shirley Group) were

asked by The Royal Dublin Society (RDS) to

develop a demountable grandstand canopy to

cover the grandstand which could be removed

to facilitate the accommodation of large con-

certs traditionally held over the summer.

ESS was contracted in conjunction with Tony

Hogg Design to design and build the canopy

whichcovers 4,971 seats, the commentator box

and camera positions.

A wide span sports and entertainment structure

such as the grandstand for the RDS, exempli-

fies the use of tensile fabric.

The stand is 120 metres long and the canopy

stretches 20 metres over the seating and

6 metres over the rear of the structure.


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Great versatility is demonstrated here with the

facility to de-mount the middle three sections to

make way for a 30 metre wide concert stage.

The design encompasses PVC membranes,

galvanized steel supports and cables, including

large rain water drainage hoppers at the single

funnel outlet from each roof panel.

Elmlea SchoolThe inside can be brought outside at Elmlea

school due to the installation of a covered

outdoor classroom. The new area, created by a

translucent fabric canopy, provides a glowing,

naturally-lit environment intended to create an

inspiring place of learning.

The idea of an external classroom is not so

alien to the generations of the past. However,

modern schools are known for keeping children

in the confines of a building for their safety and

protection. At Elmlea school, the clocks were

turned back, in order to install a tensile fabric

structure designed to combine the protection

of the school environment with the fresh air

and space of the outdoors.

The curved, playful structure, created from

durable white PVC coated polyester fabric,

is supported by a timber structure created

using two inclined structural arches that pro-

vide an enclosed space and support curved

benches. The slightly translucent PVC allows

softened light to fill the space, making it an

ideal teaching environment.

The outdoor classroom was developed with

Hall & Bednarczyk architects to provide an

interesting space for formal and informal use.

A combination of galvanized steel, glulam

timber, cables and fabric was used to fabricate

this unique structure. Tony Hogg Design carried

out the engineering and detailing.

Kilworth House TheatreThe Kilworth House Theatre has been built in

a beautiful forest glade close to the lake

in the grounds of Kilworth House Hotel in

Leicestershire.

Tony Hogg Design was initially commissioned

in conjunction with "Corporate Architecture"

to develop a scheme to enable cost certainty

for this striking canopy.

The auditorium has a maximum capacity of

540 seats in tiered rows, which provide clear

views of the stage area.

A magnificent sail-like canopy provides protec-

tion for the whole audience and stage area

against adverse weather. Galvanized steel

acts as the main support material throughout

the project.

Fabric architecture not only provides stunning

design possibilities but also the ability to be

demountable, moveable and reusable.

This not only adds to their design credentials

but may also create a structure that is more

sustainable and cost effective. Galvanizing only

enhances the flexibility of the design parame-

ters by offering longevity and a natural tough-

ness that complements the demountable/

re-erection credentials of the initial design.

Photos:

(1,4,5) ES Group Ltd, (2,3) Bill Harkin Associates

(6,7,8,9,10) Tony Hogg Design

Architecture

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The additional storey was designed and built

by the Bonn architects Mick Amort (archivolver.

com). The clients and the architect wanted

to leave the exterior of the shelter completely

unaltered, as it constituted a piece of contem-

porary history, and therefore be preserved as

an urbanistic one-off. The penthouse perches

above a large, ugly-looking concrete foundation.

The new design separates old from new by

creating a one metre wide gap between the

new structure and the top of the shelter –

a gap which is illuminated at night.

The gap has been cleverly used to house all the

service utilities required for the new building.

The Penthouse does have a subliminal connec-

tion to the bunker via a series of glass floors,

through which people can look into the shelter.

Access to the additional storey is via the shelter

stairs, which cut through an opening made in

the ceiling and lead directly into the living quar-

ters. From a structural point of view, the pent-

house is a hybrid design which uses steel and

timber. It consists of a grid column structure

made from steel sections, which places the

loads within the 2 metre thick concrete walls

of the shelter. The lattice is filled in by timber

sections which carry some of the static loading.

The resulting five metre cantilevered structure

adds elegance and interest to the existing

block of concrete. The Penthouse is given an

extra dimension with the design of the can-

tilevered balcony that juts out from the living

quarters. Galvanizing plays an important role

by providing long term protection to these steel

sections that otherwise would be very hard to

maintain not only from an access point of view

but also because of health and safety hazards.

Project costs were kept to a minimum with

most of the structure being pre-fabricated

off site.

Architect/photos: Mick Amort, Amort Architektur, Bonn

Before the Rothebach air-raid shelter in Hamm could be completed, the Second World

War came to an end, and this very nearly sealed its fate – to be abandoned for ever as

a building only half-finished. But now, after more than 60 years, a married couple have

taken an interest in the unoccupied cube, and have finished the building in fine style

by adding a penthouse at the top.

Architecture

Penthouse rejuvenates historical shelter Hybrid design

By Holger Glinde


Case Study

Galvanized Steel on the Australian CoastDurable, reliable and economical

Architects, engineers, specifiers and end users often ask for proof of past perfor-

mance when they are considering materials for use in specific situations.

This is a wise thing – the best indicator of future performance is past performance.

Emmanuel Pimentel makes the case for galvanizing in Australia.

Everyone has a natural inclination to use the

latest product available. In our everyday lives,

the latest is marketed as the best.

However, communities, asset owners and end

users value reliability, ease of use and the

minimisation of ongoing costs above all else.

Economics, durability, reduced maintenance,

the reduction of pressure on finite resources,

sustainability and recyclability are all now

part of the value chain when decisions on

infrastructure and construction are made.

In this environment, it is the material that is

proven over a long period of time, over a wide

variety of applications that is selected.

Hot dip galvanized steel is used in innumer-

able infrastructure and building applications in

Australia. This is increasing due to galvanizing’s

robustness, relative lack of maintenance,

sustainability and recyclability.

Australians and the CoastAustralians are tied to the sea and the coast.

We live there, work there and play there.

The latest Australian Bureau of Statistics data

shows that 84% of the population lives in 1%

of the most densely populated area.

Most of this area is situated on the coast.

In mid-2007, the GAA initiated a study that

involved surveying, examining and assessing

the performance of a number of structures of

varying age along the approximately 400km

of coastline in south-west Victoria. This area

fronts Bass Strait and is characterised by high

winds and heavy surf, in many instances brea-

king on rocky coastline and generating signifi-

cant quantities of chloride-laden spray.

Portland Maritime Discovery CentreThis popular facility acts as both a museum

and information centre for the coastal city of

Portland – Victoria’s oldest town.

Portland is one of the deepest ports on the

Australian coast. Its frame structure is made

up of universal beams and columns and much

of this is exposed to the ocean.

All of the structural steel is galvanized and

most of it is located about 10 to 15m from

the shoreline and is confronted with prevailing

winds directly off the ocean. In severe weather,

waves of 4 to 5m are not uncommon and ero-

sion of the shoreline is a significant problem.

The Centre is nine years old and the galvanized

steel has performed very well with no main-

tenance which was a key criteria for the facility

as the local authorities wanted to minimise the

cost burden on the community.

Geelong Carousel PavilionThe Geelong Carousel Pavilion is located in the

city of Geelong on the foreshore of Port Phillip

Bay. The Pavilion houses the oldest and most

valuable carousel in Australia, hand carved in

the United States in 1892. The carousel is

powered by an 1888 steam engine and is

accompanied by an 1898 Gavioli band organ.

An indication of the potential for significant

chloride deposition is that one of the major

structural design parameters for the building

was the offshore wind loading.

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The carousel is a popular tourist attraction

and during school holidays it is subject to

considerable stress due to children’s parties

and general public traffic. It has been open

for six years and has required no maintenance

in that time. The steelwork is in excellent

condition and all of the galvanizing is 2 to

3 times in excess of the levels required by

AS/NZS 4680.

Great Ocean Road Bridge RailsTwelve bridge rails were examined along the

Great Ocean Road in the south-west of Victoria

with the assistance of the local roads authority.

All of the bridge rails were performing well and

it is standard for them to be hot dip galvanized

and either left bare or painted in instances

where aesthetic requirements demanded.

Of interest is the fact that even though many

of the bridge rails were in the surf zone and

approximately 10 – 30m from the breaking

surf and over estuarine waters, they were in

excellent condition.

Conferral with the responsible engineers

indicated that they were performing as

expected and that a life of over 20 years with

minimal maintenance was the expected

performance.

Port of Botany Light Towers at DP World TerminalThe DP World Terminal is located in Botany Bay.

Depending on wind levels, water agitation and

other factors, then the corrosivity environment

may be classed as either Medium or High.

During the time of the inspections, the wind

was very strong coming off the bay and there

was considerable spray indicating that for cer-

tain weather conditions there would be periods

where the environment approaches that of a

Very High Marine (C5 ISO 9223).

The coating appeared to be in good condition

considering its exposure environment and age

of 27 years. All of the thickness measure-

ments were above what would be required by

Australian Standards for a new installation

(AS/NZS 4680).

Based on the conventionally accepted corrosi-

on rates for zinc and taking into account the

lowest measured thicknesses for each tower, it

was conservatively determined that the remai-

ning life of the coating was approaching at

least 20 to 25 years.

ConclusionIt would appear that, in some instances,

standards may have underestimated the

performance of galvanized steel in coastal

environments. The GAA is currently conducting

the next stage of the study which will provide

a closer examination of the galvanizing thick-

nesses and corrosion by-products. It is hoped

this provides further insight in the performance

of galvanized steel in such environments.

The Gravity Discovery CentreOn the other side of the continent a new visi-

tor centre is creating a few waves of its own.

The GDC is a visually striking, architecturally-

designed concept that combines high-tech

materials with a highly efficient passive solar

design, integrated closely into the environment.

The intention was to minimise the impact of

the Centre on the environment while providing

a state-of-the-art learning experience. Its exis-

tence owes a great deal to the work of Emeritus

Professor John de Laeter and Professor David

Blair of the University of Western Australia.

The Gravity Discovery Centre is the public

education arm of the Australian International

Gravitational Observatory (AIGO), a research

facility of The University of Western Australia

(UWA). The Centre is located near Gingin, north

of Perth and is a valuable teaching resource,

integrating art, science and technology.


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Case Study


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Many of the exhibits are interactive and peo-

ple can literally get physically involved while

learning about science. The Cosmology Gallery

also provides visitors with an insight into the

way different cultures view the origin of our Uni-

verse. There is a special focus on Dreamtime

cosmology which looks at the way indigenous

Australians view the origin of the Universe.

The United Group Leaning Tower of GinginThe tower is the final and most spectacular

phase of the Gravity Discovery Centre and

each year approximately 20,000 students and

tourists will visit the complex to learn about the

world class research on gravity waves being

conducted at the Observatory – the only gravity

observatory in the Southern Hemisphere.

The Leaning Tower provides a magnificent view

across the vast coastal plain from the sea to

the Darling Scarp. At the top of the tower there

is a platform that allows visitors and students

to repeat Galileo’s ground breaking free fall

experiments from the top of the Leaning Tower

of Pisa and to allow studies of impact craters

caused by their falling objects.

The design development of the Leaning Tower

and its construction was a major team effort

between a number of organizations that

donated time, money, expertise and materials.

Hatch Associates and United Group Resour-

ces donated engineering and design services

throughout conceptual phase to detail design.

The Galvanizers Association of Australia was

also represented on the project by its WA State

Chapter members.

Behind the Leaning Tower of GinginThe Leaning Tower of Gingin was designed

to provide a structure to replicate the feel of

Galileo’s testing on the iconic Leaning Tower of

Pisa 400 years ago. Of course, Gingin tower’s

“lean” of almost 15° was intentional, as

opposed to that of its Italian namesake, which

leans at a mere 5°! The inclination of the tower

means that the structure had to be designed to

cope with a permanent and complex spectrum

of stresses in the steel members.

The tower is made up of approximately 100

tonnes of steel and the base contains appro-

ximately 300 cubic metres of concrete (about

750 tonnes). The design and detailing of the

structure and its individual structural compo-

nents provided some unique challenges.

The triangular plan arrangement combined with

the 14.8° inclination of the tower introduced

deceptively complex geometry and meant that

many of the components at different levels

were unique. This complexity also meant that

beams at each level and supporting the view-

ing platforms had horizontal flanges to support

the floor plate with webs which are inclined.

Corrosion Protection of the Leaning TowerIntegrity of the steelwork in such an iconic

structure was always going to be of the high-

est importance. To ensure the structure’s

durability, all of the tower structure is made up

of hot dip galvanized steel. This is consistent

with most of the structural steel used in the

other buildings on the site. The owners and

designers wanted to make sure that the steel

was protected by a system that was robust,

simple and removed the financial and onerous

burden of maintenance common to most other

coatings. The robustness of the galvanized

coating was also important because many steel

members required multiple handling during the

erection process.

Emmanuel Pimentel –

Australian Galvanizers Association

Acknowledgements

Catherine Blaine – James Rose Consulting (Sydney)

Greg Cullen – Vic Roads (Geelong)

Geelong Council and Carousel Management

Portland Discovery Centre Management and Staff

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Bailey bridges were named after Donald Coleman Bailey of Yorkshire, who worked at

the Experimental Bridging Establishment. He designed a new method which enabled

thousands of bridges to be put together quickly during the Second World War.

Architecture

Full circle for Bailey BridgesSimple yet sustainable solution

By Holger Glinde


Bailey bridges became successful due to the

simplicity of their modular design and the fact

that they could be assembled with minimal aid

from heavy equipment.

The design of the bridges were such that each

individual part could be carried by a small

number of men, enabling army engineers

to move more easily and more quickly than

before, in preparing the way for troops and

material advancing behind them.

The modular design also provided great

flexibility for engineers to build whatever size

and strength of bridge that was necessary to

suit conditions they faced on the ground.

Stories of Bailey bridges being built and

erected during the Second World War are

legendary.

The very first instance of a Bailey being erected

under fire was at Leonforte by members of the

3rd Field Company, Royal Canadian Engineers.

In one instance a bridge was pushed over the

Saar River while under artillery and tank fire.

When the enemy was finally cleared out the

panels had holes in them and would not carry

the weight of a tank. Replacing the panels

would require the bridge to be "broken" in the

middle. With no time to follow standard

practice, a simple solution was implemented -

an entirely new set of panels was bolted onto

the bridge on top of the original set, a tech-

nique that later became a standard feature.

The true testament of a successful concept

can be measured by its longevity.

The original concept of the Bailey bridge design

is still in use today in versions that have been

adapted to suit particular uses.

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Architecture

HOT DIP GALVANIZING

An international journal published jointly by the galvanizing associations of Germany,

The Netherlands and Great Britain. It is licensed to associations in Spain.

Edited by: G. Deimel, H. Glinde (Editor in Chief), I. Johal, D. Baron,

Drs. G. H. J. Reimerink

Published by: Galvanizers Association, Wren’s Court,

56 Victoria Road, Sutton Coldfield, West Midlands B72 1SY, UK

Tel: +44 (0) 121 355 8838 Fax: +44 (0) 121 355 8727

E-Mail: [email protected] Internet: www.galvanizing.org.uk

This magazine may not be copied without the written permission of the editor © 2009.

Distributed in Australia by: Galvanizers Association of Australia, 124 Exhibition Street,

Melbourne, Victoria 3000, Australia, Tel: 0396541266, Fax: 0396541136,

E-mail: [email protected]

Whenever there is a major natural disaster in

the form of flooding, hurricanes or earthquakes

Bailey type bridges are still used to enable

transport of vital resources to the stricken area.

The majority tend to be manufactured

using galvanized steel with the individual

components usually kept in storage between

periods of use.

The use of Bailey bridges has been taken to

another level by the town of Bad Mergentheim

in Germany. The local authorities have decided

on an economic solution to their requirements

of small-scale bridges. Instead of paying for

the design and construction of new bridges a

decision has been made to use Bailey bridges

that are at present held in storage.

The fact that the existing bridge sections

were initially painted created a dilemma for

the authorities:

Should, what remained of the existing paint

coating, be patched and repaired or should

they opt for a longer term solution before

erecting the bridges.

The decision to opt for a different protective

system was made easier by the fact that

galvanizing the steel sections was an easy

solution. By galvanizing the steel sections the

authorities were able to adhere to their original

concept of reusing existing Bailey bridge

sections by giving them a new lease of life.

Donald Coleman’s original idea lends itself to

the galvanizing process.

The modularity of the design concept not only

makes transport, erection and demounting of a

steel structure an achievable goal, the modular

sections are easy to galvanize.

The coating provides long term corrosion pro-

tection to the steel with the added benefit that

it is tough enough to withstand the demands of

transport, erection and possible demounting of

the structure. To add to this continuing cycle, at

the end of the life of the coating, the steel can

always to regalvanized to enable it to be reused

for many more years.

Existing Bailey Bridge, Germany

Bailey Bridge sections in storage

Bridge sections before galvanizing

The galvanizing process

Galvanized Bailey Bridge, Bad Mergentheim

Photos: (1, 4, 5) D. Hildebrandt, Aalen

(2, 3) ABL-Technik Wagenseil, Neuburg a.d. Donau

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Joep Verhoeven, a student at the design

academy in Eindhoven, saw a chicken wire

fence being repaired and asked himself

whether these types of fencing could not be

made more attractive by applying a pattern.

He researched the ancient art of lace-making

and developed this into an industrial concept.

The design is made at ‘De Makers Van’ of

Rotterdam, woven in its factory in Bangalore,

India and shipped to the customer.

Photo: Raoul Kramer

Galvanizing in Detail

Galvanizing Delight2009

2/4

HDG Magazine 2_2009

Documents

bailey bridges simple

galvanized chainlink

wolvega simple

existing bridges

old bridges

concrete frame construction

industrial buildings

industrial location