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SPIDERS' WEBS A collaboration between Peter Rice, Ove Arup & Partners and Dr. Fritz Vollrath "When I was invited by Fritz Vollrath and his team at the Zoology Department of Oxford University to join him exploring how spiders' webs work, I accepted immediately. Open ended research leads to the most exciting results and stimulus. So far we have discovered that the spider is using the techniques of the late 20th century engineer, but with much more elegance and precision . Here too we are at the beginning." PR 92 23
The 'Pabellon del Futuro' - Pavilion of the Future - is one of the principal thematic pavilions to feature at Expo '92 in Seville. The architects wanted to create a spectacular eastern facade structure, supporting the pavilion's roof, which would capture visitors' imaginations. The possibility of building the facade using natural stone as its primary structural material was seen as an opportunity to challenge contemporary perceptions of stone as purely a cladding or facing material and to demonstrate how modern analytical, fabrication and construction methods can exploit the properties of this ancient building material in a new and innovative way. The outline form of the structure recalls that of Roman aqueducts such as that found at Segovia. However, its detailed composition and its structural combination with a threedimensional steel lattice structure for its lateral stability distinguishes it from its ancient predecessors. The facade structure is completely self-stable. It is used to support the curved lattice roof beams over the Pavilion which are suspended from the stone arches via a tie-system which applies uniform radial loading to the arch, and therefore a thrust-line which follows its circular geometry. Arup's specially developed software for non-linear structural analysis was a key element in being able to justify the stability of the stone arch without it being braced. Thus the stone joints within the arch were properly modelled to represent the potential 'flip-flap' mechanism of hinging either about its intrados or extrados. The 'open' stone units featured in the structure were assembled from solid blocks of 'Rosa Porino' granite. This was done at the stoneworks by gluing and dowelling with no internal reinforcing to the granite pieces. Precise cutting of the granite was achieved by modern computer controlled machines. The means of constructing the facade structure was an important consideration during its design. The erection of the facade on site was achieved without the use of temporary supports. Sections of the structure were lifted into position by crane after preassembly at ground level. Once the facade was completed, the roof and canopy beam loads could be transferred to the hanger ties under the arches. 24
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Page 4: CITATION "Peter Rice is one of the
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Page 14 and 15: MENIL COLLECTION MUSEUM, TEXAS, USA
Page 16 and 17: LA VILLETIE, PARIS, FRANCE Client:
Page 18 and 19: IBM PAVILION Client: IBM Europe Arc
Page 20 and 21: NUAGES, PARIS, FRANCE Client: SEM T
Page 22 and 23: MOON THEATRE, FRANCE Client: Atelie
Page 24 and 25: KANSAI INTERNATIONAL AIRPORT TERMIN
Page 28 and 29: , THE PAVILION OF THE FUTURE, SEVIL
Page 30 and 31: PADRE PIO CHIESA, PUGLIA, ITALY Arc
Page 32 and 33: GRONINGEN MUSEUM, HOLLAND Client: G
Page 34 and 35: GARE TGV, ROISSY, FRANCE Client: Ae
Page 36 and 37: LILLE CATHEDRAL, FRANCE Client: Dio
Page 38 and 39: JAPAN BRIDGE, PARIS Client: Sari Gr
Page 40 and 41: A ESCH, LUXEMBOURG Client: Town of
Page 42: PYRAMIDE INVERSEE, LOUVRE, PARIS, F
Page 45 and 46: on outer plane of fine tension and
Page 47 and 48: their motives remain obscure and un
Page 50 and 51: BUILDINGS AND PROJECTS A CHRONOLOGY
Page 52 and 53: IBM Pavilion Architect: Renzo Piano
Page 54 and 55: Couverture du Choteou de Foloise, N
Page 56 and 57: Berey 2, France, 1989 Roof system f
Page 58 and 59: Development of gloss system with As
Page 60 and 61: PETER RICE Peter Rice was born in I

peter rice

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