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The term TENSEGRITY was coined by Buckminster Fuller in the 1960s as a portmanteau of "tensional integrity"
SOURCE : WikiTensegrity
KENNETH SNELSON X-PIECE-1949
Created by THEERUMALAI GA, GCE-TIRUNELVELI
= TENSION + INTEGRITY
Tensegrity, tensional integrity or floating compression is a structural principle based on the use of isolated components in compression inside a net of continuous tension, in such a way that the compressed members (usually bars or struts) do not touch each other and the prestressed tensioned members (usually cables or tendons) delineate the system spatially.
PIC:NEEDLE TOWERCreated by THEERUMALAI GA, GCE-TIRUNELVELI
SOURCE : WikiSpaces TensegrityCreated by THEERUMALAI GA, GCE-TIRUNELVELI
SOURCE: TensegrityWiki - Basics
X-MODULETETRAHEDRONICOSAHEDRONPROTO TENSEGRITY PRISM
GROUND HYPOTESIS A SIMPLE 3 MEMBER PRISM A SIMPLE 4 MEMBER PRISM
Created by THEERUMALAI GA, GCE-TIRUNELVELI
COMPRESSION MEMBERS LOSES STIFFNESS WHEN LOADED
TENSION MEMBERS GAINS STIFFNESS WHEN LOADED
ABSENCE OF BENDING MOMENT FORCES ACT THROUGH MASS CENTER
A LARGE STIFFNESS TO MASS RATIO CAN BE ACHIEVED BY
INCREASING THE NUMBER OF TENSIONAL MEMBERS
EFFICIENCY OF A STRUCTURE INCREASES MINIMAL MASS DESIGN
Tensegrity structures use longitudinal members arranged in a very
unusual pattern to achieve maximum strength with small mass.
Created by THEERUMALAI GA, GCE-TIRUNELVELI
COMPRESSION MEMBERS EITHER DISJOINTED OR CONNECTED WITH BALL JOINTS
LARGE DISPLACEMENT, DEPLOYABILITY, STOWAGE IN A COMPACT VOLUME
HIGH OPERATIONAL AND PORTABILITY ADVANTAGES SMALL VOLUME
FINE TUNING AND ADJUSTMENTS OF DAMAGES ARE POSSIBLE SINCE MEMBERS
ARE DISJOINT OR CONNECTED WITH BALL JOINTS
STRUCTURES ALLOWING EASY TUNING IMPORTANT ASPECT NEXT GEN
MECHANICAL AND CIVIL STRUCTURES
Created by THEERUMALAI GA, GCE-TIRUNELVELI
STRUCTURE AS A WHOLE BENDS INDIVIDUAL MEMBERS DON’T BEND DON’T EXPERIENCE BENDING MOMENT
MEMBERS EXPERIENCING DEFORMATION IN 2 OR 3 DIMENSIONS ARE HARDER TO MODEL THAN MEMBERS
EXPERIENCING FORCES IN ONE DIMENSION
INCREASED USE OF TENSILE MEMBERS YIELD MORE EFFICIENT STRUCTURES
LOAD BEARING MEMBER CAN PERFORM MULTIPLE FUNCTIONS
TENSION OR COMPRESSION MEMBER SENSOR (MEASURING LENGTH OR TENSION)
ACTUATOR( such as NiTi WIRE)
THERMAL INSULATOR
ELECTRICAL CONDUCTOR
PROPER CHOICE OF MATERIALS GEOMETRY, ELECTRICAL, MECHANICAL AND THERMAL ENERGY OF A
MATERIAL AND A STRUCTURE CAN BE CONTROLLED
Created by THEERUMALAI GA, GCE-TIRUNELVELI
STRONGEST NATURAL FIBRE SPIDER WEB
BETA PLEATED SHEETS DISCONTINUOUS COMPRESSION MEMBERS
AMINO ACID MATRIX TENSION MEMBERS
Created by THEERUMALAI GA, GCE-TIRUNELVELI
Applications of tensegrity structures is appropriate in various areas of civil engineering such as:
1)Roof structures
2)Bridges
3)Smart structures
Created by THEERUMALAI GA, GCE-TIRUNELVELI
The patented Telstar Tensegrity roof concept is employed, for twin peak contour and the plan configuration. It is more like a cable dome structure than to a conventional roof structure. Initial studies for the design of tensegrity grids were carried out by Snelson, but its applications were limited.
SOURCE: TensegrityWiki - Basics
THE ESTADIO CIUDAD DE LA PLATA
Created by THEERUMALAI GA, GCE-TIRUNELVELI
MUNICH OLYMPIC STADIUM
Created by THEERUMALAI GA, GCE-TIRUNELVELI
OPENED ON 4TH OCTOBER,2009
470 M LONG AND 120 M MAIN SPAN
TWO LARGE VIEWING & RELAXATION PLATFORMS, TWO REST
AREAS AND A CONTINUOUS ALL WEATHER CANOPY
550 TONS OF STEEL AND 6.8 KM OF SPIRAL STRAND CABLE
KURILPA BRIDGE , BRISBANE- AUSTRALIA
A cable-stay structure based on principles of Tensegrity producing a synergy between balanced tension and compression components to create a light structure that is incredibly strong.
Created by THEERUMALAI GA, GCE-TIRUNELVELI
Civil Engineering structures are mostly static. One of the challenging functionality for Civil Engineering structures is an active adaptation to changing demands, such as load variations, temperature variations, settlement of supports and damage occurrence.
The concept of active structures involves structures that include both static and active structural elements. Adaptive structures are defined as structures whose performance is controlled by a system composed of sensors, actuators and a computer that provides the ability to learn and improve response to changing environments.
The system of Tensegrity structures gains the potential to adapt to change in environments, so they can be equipped with active control systems.MONTREAL BIOSPHERE
Created by THEERUMALAI GA, GCE-TIRUNELVELI
Cloud Nine is the name Buckminster Fuller gave to his proposed airborne habitats created from giant geodesic spheres, which might be made to levitate by slightly heating the air inside above the ambient temperature.
Created by THEERUMALAI GA, GCE-TIRUNELVELI
REFERENCE•Wikispaces: Tensegrity
•Wikipedia: Tensegrity
•Buckminster Fuller Institute
•Kenneth Snelson website
•Wyss Institute: Donald Ingber profile
•Wyss Institute: tensegrity search
•Ingber Lab at Children's Hospital Boston
•Tensegrity in a Cell
•RW GRAY’S ANALOGY ON TENSEGRITY
•CONSTRUCTOR.ORG
PIC: Turning TorsoCreated by THEERUMALAI GA, GCE-TIRUNELVELI
Created by THEERUMALAI GA, GCE-TIRUNELVELI