Transcript
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
THANK YOU
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