hdg magazine 1_2009
Post on 08-Mar-2016
266 Views
Preview:
DESCRIPTION
TRANSCRIPT
2009
1/4 Hot Dip GalvanizingInternational Magazine | ISSN 1363-0148 | www.galvanizing.org.uk
I am always out of kilter with the seasons when
it comes to shopping. By the time I decide that
I need a new pair of summer trousers, the
shops are full of autumn clothes – and so it
goes throughout the seasons. I feel that this
edition of the magazine is somewhat similar.
I am writing this in the middle of what seems
to be the coldest winter for decades and lo
and behold, we have several articles which
are, at the very least, more suited to warmer,
sunnier days. The brief survey of German
garden furniture, opposite, does give one a
feeling that perhaps summer is only just
around the corner.
(Although I cannot help wondering what she
puts in those sandwiches, or have they not
been fed for a week?).
Elsewhere there are flood defences (against
spring tides, no doubt) a viewing tower
(only for the summer), a walkway over an old
slag heap (much prettier when the trees are
out) and a greenhouse big enough to grow
tropical trees in.
I expect that we will feature galvanized
supporting steel for ski lifts and cable cars
in the issue that we put to bed on the
hottest day of the summer.
David Baron, Editor
Contents
2 Editorial
3 Galvanized garden furniture Natural materials
6 Mobile flood barrier
Flexible protection
7 Mottener tower
Rational material choice
8 New eco-architecture studio Aspirational learning
environment
10 De Waterlelie Community School Safety and durability on a
higher plane
12 Carl-Alexander-Park Revitalising a slagheap
14 Lausitz-Tower New lease of life
15 Laufenburg customs post Homogeneous design
16 Galvanizing In Detail
Front cover:
De Waterlelie Community School
Photo by G.J.M. van Rijswijk (VVKH), Leiden
Editorial
2 | Hot Dip Galvanizing
2009
1/4
Design
Galvanized garden furnitureNatural materials
By Holger Glinde
When the first warm rays of the sun herald the coming of spring and awaken
the garden greenery from its winter slumbers, that’s the time when many people’s
thoughts turn to garden furniture.
The choice of garden furniture is so wide that
it’s almost impossible to assess it all.
Every level of quality is represented in terms of
both design and manufacture. The most popu-
lar materials include plastic, timber and steel.
When steel is used it is often in conjunction
with hot dip galvanizing as a central element
of the design, not only because of its robust
corrosion resistance, but increasingly because
of its ‘natural’ appearance.
The combination of the lively patina of hot
dip galvanizing with timber, or with coloured
surfaces, fits harmoniously into the most
varied garden and terrace ambiences.
Our European colleagues give an overview of
some exciting options available in Europe.
Circular table and seat unitThis is a multi-purpose piece of garden furni-
ture which, in its standard version, can seat
eight people on the four bench seats.
Each bench seat can be removed in order to
make space for a wheelchair or a high chair.
A useful feature is that the height of the
benches can be altered by slotting them
into different positions on the table legs.
The lowest position is for adults, then children
and if the benches are set in the highest
position, the bench seats fit flush with the
tabletop, and it turns into a huge table for
12 people.
The table and seat unit is made from hot dip
galvanized steel and teak.
Disco Disco, Big Bux and La SuperfineBig Bux is a stool made to look like a box tree
that has been carefully shaped into a cube and
when a lamp is put in the base, it becomes an
outdoor lighting fixture.
Disco Disco is the name of a second stool
which, basically, aims to pay homage to the
sixties. Big Bux and Disco Disco are manufac-
tured from 3mm thick steel plate which is hot
dip galvanized and is available with different
colour finishes.
The La Superfine table and bench are available
in various sizes and are made from duromer
high-pressure laminate and hot dip galvanized
and painted steel.
1
2 3 4
Hot Dip Galvanizing | 3
1
4 | Feuerverzinken
Design
The positive characteristics of the galvanizing
and the high-pressure laminate make
La Superfine into very long-lasting piece
of garden furniture.
Back to the ‘50’sCoordinated garden chairs, armchairs and
benches up to 3m long can be combined with
tables between 75cm and 270cm long.
The furniture’s design has a breath of fifties
nostalgia about it – and yet it is independent
and completely contemporary.
The individual pieces of furniture comprise
galvanized steel tube frames combined with
ash or painted steel for the tabletops.
The plain-galvanized lookOne of this designer’s lines is reduced, for
the most part, to hot dip galvanized steel and
consists of co-ordinated armchairs, tables on
castors, shelves, mobile barbecues, movable
flower tubs and a garden shower.
Other lines combine hot dip galvanized steel
with wooden elements.
Minimalist DesignGalvanized steel has long been the material
of preference for designers of garden furniture
since, in the open air, it continues to look good
as it ages, and can fit harmoniously into a
natural setting.
On the one hand, the designer can combine
galvanized steel with other materials such as
larch wood, basalt or limestone in minimalist
designs, but on the other hand he can offer
a minimalist variant of galvanized steel on its
own.
Outdoor furniture made from hot dip galvanized
steel will enrich any garden with its charm –
a combination of naturalness and liveliness.
As is well known, hot dip galvanizing is imper-
vious to wind and weather (including ultra-violet
rays) and is more tolerant of mechanical
abuse arising from the way the furniture is
used (children, please note).
With hot dip galvanized garden furniture, the
summer can come back just as new and fresh
every year.
Further information:
www.extremis.be
www.miramondo.com
www.atelieralinea.ch
www.jankurtz.de
www.reichenberg-weiss.de
Care tips
Generally speaking, galvanized steel needs no
maintenance.
Hot dip galvanizing protects by forming a complex
surface coating in combination with the atmosphere,
but it takes a few weeks to form.
For this reason, standing moisture should be avoided
on new, galvanized garden furniture.
Moreover, the air should be allowed to circulate freely
around it. The use of covering films is not only not
necessary, but should be completely avoided.
Clean water and a standard household sponge are
recommended for cleaning hot dip galvanizing.
The use of highly acidic or strongly alkaline cleansing
agents is not advisable.
5
6
7
2009
1/4
2
3
4
2009
1/4
5
6
7
The River Saale flows through Bad Kissingen
and if precipitation in Lower Franconia meets
the snow melt in the neighbouring Rhone and
this causes the Saale to rise, it can flood
causing considerable damage over large areas
of Bad Kissingen. To counteract this, the
Bavarian state authorities, with co-financing
from the EU amounting to 12.5 million Euros,
have erected a dyke about a kilometre long,
together with removable flood barrier walls,
on the east bank of the Saale.
The mobile protection barrier for the Bad
Kissingen inner city is in two sections, with
a total length of over 500 metres.
Each section is divided into panels 2.5 metres
long, with a maximum height of 1.6 metres,
depending on the undulation of the land.
Each panel consists of a foundation base and
a reinforced concrete wall with a maximum
height of 1.1 metres, so as not to obscure
the view of the flood plains and gardens along
the Saale.
At high flood levels, galvanized steel shoes with
heights of between 0.3 and 0.6 metres are
bolted onto the continuous wall at intervals of
2.5 metres.
To allow more space for roadside cafes, the
wall has been widened out into a bay at some
points.
The steel shoes interlock with aluminium
struts, which extend horizontal timber sheeting
made from rectangular extruded hollow
wooden chamber sections 2.5 metres long and
10 centimetres high.
Wicket gates in the wall allow people to pass
through in the summer and when the flood
barrier is raised or dismantled. The mixed cons-
truction format guarantees minimum weight,
and simultaneously sufficient loading capacity,
together with rapid manual installation of the
barrier.
Manufacturer: IBS, Thierhaupten
Photos: Klaus Idelberger, Bad Kissingen
Flooding is an age old problem, however, the number of catastrophic floods and the
level of damage associated with them has dramatically increased over the last few
years. The increase in paved surfaces, which allow no infiltration, or the changes made
to natural water courses are just two of the typical reasons for this. It is true that
investing in flood protection barriers does not eliminate the causes of the problem
but as the example of a flexible flood protection barrier in Bad Kissingen shows, flood
damage is minimised.
Technik
Mobile flood barrier Flexible protection
By Holger Glinde
2009
1/4
6 | Hot Dip Galvanizing
Hot Dip Galvanizing | 7Feuerverzinken | 7
Architecture
Mottener towerRational material choice
By Holger Glinde
The artistically fashioned cylindrical
shape of the observation tower on the
Mottener Hill near Fulda is reminiscent
of the form of a wheat beer glass.
It is a replacement for a wooden tower
which rotted away.
When the design of the replacement structure
was being considered the question of which
material should be used was at the forefront of
the design rationale. The decision was taken to
use galvanized steel, on grounds of economy
and long life. The tower was designed by the
architect Rudolf Röbig of Schondra.
The steel construction work was carried out by
Rothkegel Metallbau of Bad Brückenau.
Four vertical stair supports and four concave
edge supports define the 23 metre high
structure. Trapezoidal heavy plates link the stair
supports with the edge supports.
Twelve horizontal tubular cross bars under the
platforms and a twelve-fold zigzag brace
connecting with the strings running parallel to
them stabilise the supports.
The platforms act as observation balconies,
which appear to hang like birds’ nests on round
steel bars forming pendants on both sides of
the tower body. Three of the nests act as rest
areas. The lowest platform also acts as a
shelter for ramblers.
At the top of the tower is a viewing platform
measuring 36 square metres. On a clear day,
the landscape of the Rhone valley can be seen
in the distance.
Architect: Rudolf Röbig, Schondra
Steel construction: Rothkegel Metallbau, Bad Brückenau
Photo: Klaus Idelberger, Bad Kissingen
2009
1/4
The £3M refurbishment and expansion scheme
recently completed at Scroope Terrace com-
prises the new eco-architecture studio and a
major refurbishment of the Georgian Scroope
Terrace building for the Department of architec-
ture. The scheme was masterminded by Head
of Department, Professor Marcial Echenique,
and designed by Freeland Rees Roberts Archi-
tects with Mole Architects. The scheme is desig-
ned to unite and strengthen the Department's
teaching and research functions.
The new studio building sits to the rear of
the terrace adjacent to Colin St John Wilson's
seminal 1950's extension.
The brief required a single teaching space
clear of columns to house the undergraduate
design studio and a building made of timber
that retained the existing on-site car parking.
A contemporary version of Victorian warehouse
buildings was pictured, with cast iron replaced
by timber and simply designed details.
Planning and Social ConstraintsSpace for the new building was limited; plan-
ning constraints meant that existing listed trees
needed to be preserved and sufficient space
given to the rear of the listed Georgian terrace
to preserve its integrity.
The placement of the building responds to
these constraints. It creates a central cloistered
garden space between the new building and
the existing extension, providing a physical
link between the group of buildings that make
up the School of Architecture. The garden is
enclosed by the existing historic garden wall to
the rear, and a new brick wall on the line of the
original one to the south, separating the car
park beyond.
Materials & ConstructionThe form of the new building is determined by
its function, and a desire to build a naturally
Architecture
New eco-architecture studioAspirational learning environment
By Iqbal Johal
The new eco-architecture studio at Scroope Terrace, home to Cambridge University's
Faculty of Architecture and History of Art, has been shortlisted for a Royal Institute of
British Architects (RIBA) East Spirit of Ingenuity Award. The new studio building uses
natural materials and efficient energy and construction systems which minimise the
environmental impact of the building.
8 | Hot Dip Galvanizing
2009
1/4
Architecture
cooled timber-frame building that embodies
the Department's commitment to sustainable
design. North lights in the saw-tooth roof
provide even natural light without solar gain
and an innovative cooling strategy has been
adopted, comprising good cross-ventilation,
high-level windows and an innovative water-
based radiant cooling system in the ceiling.
The expressed structural timber frame gives
rhythm to the elevations, clad externally in
cement fibre panels, a large-scale version of
weatherboarding, recessed between the timber
columns. Inside, structural principles are made
apparent in the timber trusses; the top chord
gets slimmer towards the supports, and the
struts reduce in size as the forces reduce.
Galvanized steel contributes to the sustainable
credentials of the project in a number of ways.
All external hangers and shoes supporting the
new studio building's timber frame are bespoke
galvanized steel sections. In addition, the
pedestrian links that connect the new building
to the existing terrace and Sandy Wilson buil-
ding employ galvanised steel elements as part
of their construction, including 125 x 65mm
PFCs supported on 60 x 60mm RHS welded
to steel angles to form cleverly form handrails.
Finally, the fire escape bridge and staircase to
the south east of the building is constructed
entirely from hot dip galvanized steel members.
In all cases steel was chosen for its recyclable
sustainability rating and galvanizing for its
aesthetic and weathering purposes.
The new studio embodies contemporary struc-
tural and sustainable construction methods
while creating a light-filled space for studying
and making architecture. The design of the
studio will act as an inspiring learning environ-
ment and its sustainable construction should
aid the students' experience of designing low
energy, ecological buildings in the future.
Architects: Freeland Rees Roberts Architects &
Mole Architects
Photos: David Butler - Page 8, Mole Architects - Page 9
Hot Dip Galvanizing | 9
2009
1/4
The new Community School designed by
Gerrit-Jan van Rijswijk of VVKH Architects in
Leiden is a versatile complex accommodating
a great number of functions.
The new building houses two primary schools,
a day nursery with after school care, a commu-
nity centre for the Turkish Cultural Centre
Leidschendam, a health centre, a boxing school
and a sports hall.
The sports hall and boxing school including
activity area and changing rooms are situated
in the basement of the complex.
The Community School occupies a total area
of 4568 m2. The complex is equipped with
a sophisticated climate control system.
As a result of good insulation and ventilation
with heat recovery the school is 25% more
energy efficient than existing regulations.
The design has also been tested with regard
to a number of durable building aspects, such
as use of materials, water, health, energy, etc.
The building scored extremely high in this study
(final mark 8.4 out of 10).
The roof of the school which also serves as a
playground is accessible via a bridge. A robust
system of galvanized steel railings has been
installed around the playground to create a
safe play area for the children.
Galvanizing as a surface treatment ensures
that the steel elements in question are well
protected against corrosion and therefore have
a high degree of durability.
Furthermore the coating requires little main-
tenance and is able to cope with the daily wear
that the railings system will endure from the
enthusiastic activities of the children.
Project details:
Architect/photos: G.J.M. van Rijswijk (VVKH), Leiden
Designer: IMD, Rotterdam
Installations: Valstar Simonis, Rijswijk
Construction: Stout, Hardinxveld-Giessendam
Landscaping: Kuiper Compagnons, Rotterdam
Client: Leidschendam-Voorburg Council
The first thing which is reflected in the pond of the park in the Prinsenhof area of
Leidschendam is the railing on the first floor of a school building.
This railing is not just attractive but also offers solid protection for children playing
outside ‘De Waterlelie’ Community School.
Architecture
De Waterlelie Community School Safety and durability on a higher plane
By Gerard Reimerink
2009
1/4
10 | Hot Dip Galvanizing
2009
1/4
It is the first completed project of the ‘Green
Metropolis’ initiative, which is developing
future perspectives for Belgian-Dutch-German
co-operation, in the context of cross-border
structural change for the former mining region.
After the pit closed, the Carl-Alexander mine
site, which stretches over approximately
80 hectares and has an imposing 80 metre
high slagheap on the western edge of the city
of Baesweiler, was largely abandoned to nature
for many years. The slagheap and the surroun-
ding area have become almost entirely forested
in the interim period.
In 2002, the city of Baesweiler organised an
international planning competition to promote
future high-quality development of the site.
A key principle that was identified early within
the competition was that the project develop-
ment should achieve the right balance between
keeping the historical links but also creating a
modern legacy for the future of the area.
It also had to make sense in terms of urban
development.
Based on the conceptual approach of the prize-
winning competition entry from the consortium
formed by DTP Essen and PASD Hagen, the
'Carl-Alexander Park Baesweiler' master plan
was developed. It formulates strategies for
the development of the former mine itself
and the immediate vicinity and lays down
the framework for the subsequent stages of
development.
A central element in the master plan was the
creation of a new technology and industry
area centred on biotechnology and the life
sciences and the idea of nature, leisure time
and lifestyles.
The themes of ‘mines’, ‘hills’ and ‘ascending’
are featured throughout the project.
Architecture
Carl-Alexander-ParkRevitalising a slagheap
By Holger Glinde
The Carl-Alexander mine in Baesweiler, which was closed in 1975, exploited the
Aachen seam, the north-east part of the Limburg coal field, which extends from Bel-
gium through the Netherlands to Germany. Carl-Alexander Park has developed on the
site of the former pit.
12 | Hot Dip Galvanizing
Feuerverzinken | 13
The ‘mining centre’, which has been given a
red façade, acts as the gateway to the ascent.
It is the ‘base camp’ for the route up to the top
of the slagheap and acts as a central meeting
point where you can eat and relax.
In addition, it is also to be used by various
associations.
The slagheap can be climbed via a flight of
steps in the mining centre, which leads the visi-
tor onto a suspension bridge about 25 metres
long. It forms the link with the suspended
walkway which takes the visitor up the slope at
a height of 6 to 10 metres above the ground.
In the course of the ascent, the walkway
changes its nature, and it ends in a ridge path,
which leads in a straight line to the next ele-
ment, the mountain plateau.
The mountain plateau is a viewing platform on
the south-west side at the top of the slagheap.
It provides an opportunity to have a rest and
in good weather it offers a wide view over the
Aachen mining region and the mountain park.
All steel structures such as the flight of steps in
the mining centre, the suspension bridge, the
suspended walkway and the viewing platform,
have been galvanized.
In addition to reliably providing long-term,
robust anti-corrosion protection, there were
also design grounds for selecting galvanizing.
The zinc-grey surfaces were chosen to contrast
with the dominant red of the mining centre
façade, which can be seen as an inspiration
for additional buildings and which harmonises
splendidly with the green of the plant life and
the anthracite shades of the slagheap.
Architects: DTP, Essen and PASD, Hagen
Photos: robfra1973
Architecture
2009
1/4
Architecture
Lausitz-Tower New lease of life
By Holger Glinde
The population of Hoyerswerda, which at one time was full of blocks of flats which
were typical in East Germany, will have gone down to about 30,000 by 2015. Some of
the 11-storey concrete structures which were such a feature of the central part of the
town, and had deteriorated badly from standing empty, have been demolished.
This has created large expanses of waste
ground, and there was a possibility that the
central area would fall into rack and ruin.
An architectural competition was organised,
and Muck Petzet Architects of Munich
proposed that some of the residential
accommodation should be retained, and even
that additional stories should be added.
A landmark should be created at a well-known
point in the central part of Hoyerswerda
(the so-called “Lausitz Tower“), which would
breathe new life into the area.
The building would house commercial pre-
mises, together with high-quality residential
accommodation. An additional storey was to be
built on, and there was to be a public observa-
tion platform at the top, with a roof terrace for
the residents. The existing exposed concrete
facade of the Lausitz Tower was covered by a
heat-insulating laminated facade, whilst fair-
faced concrete was used for the new build,
which was given a raw timber surface.
The external envelope was enhanced by a living
wall facade, which provided some lightness as
a contrast to the massive solidity of the tower
block. To achieve this effect, hot dip galvanized
plant troughs were distributed over all the
floors of the building.
They are linked to a wide-meshed network
which is intended to ensure that the building
surfaces and the windows do not appear too
large. As a vertical park, the building’s living
wall evokes the trees in the surrounding area,
and is intended to symbolize a new image for
Hoyerswerda combining modernity, urban life,
and the surrounding landscape.
The open spaces created by demolition in the
town centre have inspired the “green architec-
ture” which reflects them.
Galvanized steel, is also used within the project
to emphasise the industrial origins of the
existing buildings. Balconies, railings and
handrails are galvanized in conjunction with
the support system for the living wall.
The material’s image is particularly striking on
the balcony elevation, with the newly advanced
steel parapet, which picks up an abstract plant
design. In addition to the design aspects,
the main argument for using galvanized steel
was a combination of durability and cost
effectiveness.
Architects/photos:
Muck Petzet Architekten, Munich
2009
1/4
14 | Hot Dip Galvanizing
Architecture
Laufenburg Customs postHomogeneous design
By Holger Glinde
It was designed by Architects Würkert, Felchlin,
Zickenheiner in Lörrach, and it stands on the
German side of a bridge over the Rhine.
The homogenous material concept with its
grassed roof above the roadway, and the
semi-natural layout of the surroundings, all
contribute towards integrating the Customs
building into the landscape.
The Customs building has been designed as
a compact, cube-shaped structure.
From the road, it looks like a single-storey flat
building, which houses a concourse area where
travellers and freight are dealt with, as well as
office space and inspection garages.
The roof above the roadway merges into the
Customs building, which is made of timber,
and stands like an oversized table above the
roadway and the Customs building, linking the
two together to form an architectural unity.
At the same time, the building has a second
climatic envelope, formed by the big roof and
the lamellae mounted between the supports,
which significantly reduce the extent to which
the concourse area heats up in summer.
The extensively grassed over roadway roof
takes the form of a galvanized steel structure,
and measures 39m x 25m. It consists of two
rows of steel supports, with eight supports
in each row.
Near the roadway booths, there are eight
stanchions, which act as insubstantial-looking
light fittings at night.
Three big skylights provide sufficient light
below the roadway roof during the day.
If the customs post was ever to become
redundant (Switzerland to join the EU?) the
structure has been designed so that it can
be easily dismantled and the structural
elements reused.
Architects/photos:
Würkert, Felchlin, Zickenheiner, Lörrach
The Laufenburg European Union Customs post on the German-Swiss border was
built in order to decrease the pressure created by the through traffic between the
historic old towns of Laufenburg/Baden and Laufenburg/Aargau.
2009
1/4
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: ga@hdg.org.uk 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: gaa@gaa.com.au
The internationally renowned botanical institute
at the Heinrich Heine University has had a
new cold greenhouse made to accommodate
plants from the southern hemisphere.
Typical examples of these, such as the Austra-
lian silver gum or the nightlight tree, which is
found in Mexico, are provided with optimal
overwintering conditions in the galvanized steel
structure.
Since greenhouses are regularly exposed to a
high degree of atmospheric humidity, hot dip
galvanizing has become generally accepted as
the standard protective method for applications
of this kind. HG
Planning/Execution/Photos: BLB NRW Dusseldorf
Galvanizing In Detail
Galvanizing Delight
2009
1/4
top related