N E W S L E T T E R O F T H E E U R O P E A N B A S E D N E T W O R K F O R T H E D E S I G N A N D R E A L I S A T I O N O F T E N S I L E S T R U C T U R E S
NEWSLETTER NR. 26MARCH 2014PUBLISHED TWICE A YEAR
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PROJECTS
REPORT
RESEARCH
ARTICLE
STRUCTURAL MEMBRANES 2013
LONDON OLYMPIC GAMES 2012WHAT HAPPENED TO THE SERGE FERRARI COMPOSITE MEMBRANES?
SPEEDKITS DISASTER SHELTER ‘CLEVER ROOF’
BUILDING WITH AIR - BUS STATION CANOPY
[RE]THINKING LIGHTWEIGHT STRUCTURESLIGHT IS BEAUTIFUL, LIGHT MOVES
11 Rue Francis de Pressensé, 93571 La Plaine Saint-Denis cedex, France
“From membrane form to rigid shell” Within the scope of a two years research project the IMS Dessau e.V. executed a very promising and tempting project dealing with the conversion ofmembrane structures into concrete shells. Together with various partners from industry and university an interdisciplinary team was formed. The com -bination of an extensive material research, the survey of the process technology of application and the direct evaluation formed the core of this research.For further and detailed information we would like to refer to the next issue of Tensinews 27. We are very much interested in cooperating with newpartners to proceed and extend this research. For direct discussion contact Robert Off or Henning Duerr via www.ims-institute.org.
ContextIn order to protect from the hotsummer and rainy winter theoutdoor coffee and bar area of thisnew hotel in Punta del Este (one ofthe most important resorts insouth America), a roof wasrequired. Since the area to be
covered wasn´t “orthogonal”,conventional materials where nota solution; in addition, themunicipality only allowed the useof “light” materials that could beeasily removed. The solution hadto be clearly a fabric roof.
ProjectThe tensile structure had toconnect two higher buildingslocated at both sides of the terrace
(Fig. 1). Sobresaliente ltda.designed a seashell shaped roofthat offers a very attractive viewboth from the inside and the
TENSINEWS NR. 26 – MARCH 20144
DEVELOPING AN
EXPANDABLE
MODULAR ROOF
COVERING
Punta del Este, Uruguay
A SEASHELL SHAPED COVER FOR THE OUTDOOR COFFEE AND BAR AREA
S O B R E S A L I E N T E
TRITTHARDT + RICHT E R
2122 Hotel Art Design
1
ContextWell known and successfulGerman manufacturer of mobilehomes “Carthago” opened a newsales maintenance and fabricationfacility called “Carthago City” nearRavensburg (Southern Germany)in spring 2013. One idea of the architectural con -cept was to provide a membranecovered area for exhibition andweather protected parking ofbrand-new mobile homes. Primerequirement was to protect thefairly expensive cars from hailduring summer time (Fig. 1).Second request was to have aflexible modular system whichallows expanding the covered arealater by similar modules. So after ashort preliminary design stagebüro für leichtbau was assigned todevelop 16x16m funnel shapednon-collapsible umbrellas.
ProjectBesides a satisfying overall visualappearance of the ensemble, whichis almost granted by default whenbuilding funnel shaped umbrellas,our main focus was to develop a
very reduced nearminimized steel structure.In this special case it obviouslymakes sense to spend a little moretime thinking of simplification and
optimization because the designwas meant to be built at least ninetimes.
One of the basic concepts of thestructural design was to subdividethe umbrella into two main items:The shaft, which is a four-girdercolumn with an additionaldrainage tube in the centre axisand the upper top-part includingthe circumferential frame with 12 radial suspended arms and themembrane surface with low-pointring (Fig. 2 & 3).
This design allowed a very efficientand easy assembly and erection onsite. In a first step the shaft is fixedand adjusted on cast-in embeds.
Name of the project: 2122 Hotel Art DesignLocation address: Av. Pedragosa Sierra entre Roosevelt y San Ciro,
Punta del Este, UruguayFunction of building: HotelCover Function: Roof for the outdoor bar and coffee hotelConstruction year: 2012Roof design and project: Sobresaliente Ltda. Roof structural engineer: eng. Marella & PedojaRoof fabricator and contractor: Sobresaliente Ltda.Supplier of the membrane material: Serge FerrariMaterial: serge ferrari 1002 S.Covered surface: 75m²
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