 |
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| Basic Elements : |
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| The Modular Display
System consists of two basic elements-the node
& the tube. A number of different models
are available depending on criteria, such as
load burden, design, place & cost, etc.
The node has 18 squares to create 18 threaded
holes for practical use.
Therefore, 45o, 60o,
90o, 135o & 180o
can be achieved. |
|
| Measurement
of Tube Length : |
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| The tubes have threaded
ends on both side to introduce tensile or forces
into the nodes. The length of tube is designated
by the standard measure from node axis to node
axis. |
|
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|
Tube Length : |
| The length of tubes increase
in geometrical progression by the factor 2, i.e. |
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| 250mm x 《2 = 353mm |
707mm x 《2 = 1000mm |
| 353mm x 《2 = 500mm |
1000mm x 《2 =
1414mm |
| 500mm x 《2 = 707mm |
1414mm x 《2 =
2000mm |
|
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 |
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| By following the rule,
a wide variety of tube length can be obtained,
In this way, custom-made tube length are available
without difficulty to meet any designing needs. |
| |
| Take the cube for example,
the angles of the node axes to each other are
the same as the angles of the plane diagonals
i.e. 45o, 60o, 90o. |
|
|
|
| Counting Method of Space
Frame Tubes & Nodes Required : |
| |
|
1. |
Due
to the structure of space frame are 3
dimension, how to count the necessary
materials (tubes & nodes), some time
confuse the designer. so there is a simple
way to count how many materials (tubes
& nodes) you needed. |
| 2. |
Usually, the top
area is not equal to the bottom, so take
the larger one as the counting base. |
|
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| A. |
Counting method while the tubes length
are equal (see figure 1) |
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A=6
B=3 |
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Volume
of Node : |
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2xAxB+(A+B+1)=2x6x3+(6+3+1)=46pcs |
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Volume
of Tube : |
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8xAxB=8x6x3=144pcs |
|
|
|
B. |
Counting method while the tubes length
are not equal (see figure 2) |
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A=5
B=3 |
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Volume
of Node : |
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2xAxB+(A+B+1)=2x5x3+(5+3+1)=39pcs |
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Volume
of Long Tube : |
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Ax(B+1)=5x(3+1)=20pcs
Bx(A-1)=3x(5-1)=12pcs
Total :32pcs |
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Volume
of Short Tube : |
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AxBx4=5x3x4=60pcs
Ax(B-1)=5x(3-1)=10pcs
Bx(A+1)=3x(5+1)=18pcs
Total : 88pcs |
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* Remarks : Bold line as long tube, thin line
as short tube. |
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