Space frame

BUILDING CONSTRUCTION

SPACE FRAME

DEFINITION:A three-dimensional structures.The assembled linear elements are arranged to

transfer the load.Take a form of a flat surface or curve surface.Designed with no intermediate columns to create

large open area.

Load Distribution

TYPES OF SPACE FRAME1) Two and three-way grids Characterized as two way or three way

2) Single, Double and Triple Layered Single layer frame has to be singly or

doubly curved. Commonly used space frames are double

layered and flat. Triple layered is practically used for a

large span building.

COMPONENTS OF SPACE FRAME

Consists of axial members : which are tubes and connectors

TUBES1) Circular Hollow Sections

2) Rectangular Hollow Sections

CONNECTORS1) Tuball Node Connector A hollow sphere made of spheroidal

graphite The end of the circular hollow section

member to be connected is fitted at its ends by welding.

Connection from inside the cup is using bolt and nut.

2) Nodus Connector It can accept both rectangular and

circular hollow sections and that the cladding can be fixed directly to the chords.

Chord connectors have to be welded to the ends of the hollow members on site.

3) Triodetic Connector It consists of a hub, usually an aluminium

extrusion, that has slots or key ways, which the ends of members are pressed or coined to match the slots.

4) Hemispherical Dome ConnectorUsually use for double layer domes.Has a span more than 40m.More economical for long span.The jointing is connect by sliting the end

of the tube or rod with the joint fin.There are 2 types of joint, pentagonal joint

and hexagonal joint.

ADVANTAGESLightElegant & EconomicalCarry load by three dimensional actionHigh Inherent StiffnessEasy to constructSave Construction Time & CostServices (such as lighting and air

conditioning) can be integrated with space frames

Offer the architect unrestricted freedom in locating supports and planning the subdivision of the covered space.

EXAMPLES OF BUILDING

SAN SIRO STADIUM, MILAN

STANSTED AIRPORT, LONDON

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