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SPIDER WEB INSPIRED STRUCTURES

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Ranishka Aluthgamage

on 18 October 2014

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Transcript of SPIDER WEB INSPIRED STRUCTURES

SPIDER WEB INSPIRED STRUCTURES
BIOMIMICRY
SPIDER WEB
IN

Biomimicry
"Innovation that seeks sustainable solutions to human challenges by using nature’s time-tested patterns and strategies."

-Also known as biomimetics.
How does a spider build the web?
Types of spider webs
Funnel web
Sheet web
Tangled web
Tubular web
Orb web
The load distribution on a web
Bridges
Suspension bridges
Golden gate bridge
Location: Marin Country, San Francisco, USA
Length: 2737m
Elevation: 67m
Height: 227m

Architect: Joseph Strauss, Charles Alton Ellis,
Irving Morrow
Construction started: 1933
Construction completed: 1937
Material: steel
Akashi - Kaikyo bridge
Location: Awaji, Kobe, Japan
Length: 3911m
Elevation: 65.72m
Height: 282.8m

Architect: Satoshi Kashima
Construction started: 1988
Construction completed: 1998
Ellena Palama
Location: Peradeniya, Kandy, Sri Lanka
Mechanics and structural properties
Suspenders under TENSION
Main cable under TENSION
Towers under COMPRESSION
Cable stayed bridges
Millau Viaduct
Location: Viaduc de Millau, France
Length: 2640m
Elevation: 270m
Height: 343m

Architect: Norman Foster, Michel Virlogeux
Construction started: 2001
Construction completed: 2004
Tatara bridge
Location: Hiroshima, Japan
Length: 1480m
Elevation: 26m
Height: 220m

Architect: Honshu-Shikoku Bridge Authority (HSBA)
Construction started: 1993
Construction completed: 1999
Infinity bridge - CONCEPT
Architect: 10 Design, Buro Happold
Location: Shizimen District, China
Mechanics and structural properties
Other bridges
Cobweb Bridge - England
Unstable Bridge
France
Red Bridge - Japan
Langkawi Sky Bridge
Malaysia
High Tensile Structures
Millennium Dome
Location: Greenwich, London, England
Architect: Richard Rogers, Mike Davies
Construction started: 1997
Construction completed: 1998
Olympiapark, German Olympic Stadium
Location: Munich, Germany
Architect: Frei Otto, Günther Behnisch,
Hermann Peltz, Carlo Weber
Construction started: 1968
Construction completed: 1972
Abuja Stadium
Location: Abuja, The Federal Capital Territory,
Nigeria
Architect: Schlaich Bergermann & Partners (A
German engineering firm)
Construction started: 2000
Construction completed: 2003
Mechanics and Structural properties
Key feature: Carries only tension and no
compression and bending within the construction elements.
Fabric properties:
High tensile strength
High tear strength
Adhesion strength
Flame retardant
Structural properties to consider:
Stress vs. strain
Service life
Mechanism of joining materials
Futuristic Concepts
Key inspirational feature -
TENSION
COMPONENT
Chamara Deshappriya
I
Purney Dissanayake
I
Hansini Abeysinghe
I
Roshan De Seifa
Ranishka Aluthgamage
I
Shenuka Corea
I
Rekha De Silva
I
Ruvin Rajindha
Thank you!
Full transcript