THE DISCOVERY OF SPACE FRAMES WITH FIVEFOLD SYMMETRY

1992 ◽  
pp. 205-219
Author(s):  
Stephen C. Baer
Keyword(s):  
Fivefold Symmetry ◽  
Space Frames

DISCUSSION. OPTIMUM PLASTIC DESIGN OF SPACE FRAMES.

1978 ◽  
Vol 65 (2) ◽  
pp. 485-486
Author(s):  
MMK KHALIFA ◽  
D TORDOFF ◽  
JE MERWIN ◽  
W FEARN
Keyword(s):  
Plastic Design ◽  
Space Frames

Closure to “Dynamic Analysis of Inelastic Space Frames”

1971 ◽  
Vol 97 (4) ◽  
pp. 1296-1296
Author(s):  
Robert K. Wen ◽  
Fereydoon Farhoomand
Keyword(s):  
Dynamic Analysis ◽  
Space Frames

scholarly journals Documentation of the Corrosion of Composite-Extruded Aluminium Matrix Extrusions Using the Push-Out Test

2008 ◽  
Vol 43 ◽  
pp. 17-22 ◽  
Author(s):  
Matthias Merzkirch ◽  
Kay André Weidenmann ◽  
Eberhard Kerscher ◽  
Detlef Löhe
Keyword(s):  
Shear Strength ◽  
High Strength ◽  
Spring Steel ◽  
Aluminium Matrix ◽  
Corrosive Media ◽  
Corrosive Attack ◽  
Galvanic Couple ◽  
Space Frames ◽  
Push Out

A possibility to increase both stiffness and strength of aluminium-based structures for the application in lightweight profiles for vehicle space frames is the use of composite extrusions in which high-strength metallic reinforcements are incorporated. Within the scope of the present investigations, composite-extruded profiles with wire-reinforcements made of austenitic spring steel 1.4310 (X10CrNi18-8), in an aluminium matrix AA6060 (AlMgSi0.5), which were exposed to different corrosive media for different times, were characterised in terms of the debonding shear strength using the push-out-technique. The formation of a galvanic couple could be conceived mathematically in regard of terms describing the formation of a shear-impeding layer and the corrosive attack. Thereby the parameters for the different media could be determined.

Timber Pole Space Frames

1987 ◽  
Vol 2 (2) ◽  
pp. 77-86 ◽  
Author(s):  
Pieter Huybers
Keyword(s):  
Developing Countries ◽  
The Netherlands ◽  
Double Layer ◽  
Steel Wire ◽  
Galvanized Steel ◽  
Shrinkage Cracks ◽  
Space Frames ◽  
University Of Technology ◽  
Engineering Department ◽  
Under Construction

Timber poles are not often used for structural purposes in building, although they are a cheap material with good mechanical qualities. This is due to the fact that the poles often suffer from shrinkage cracks, which makes it difficult to transfer the load from one element to another in a way that is structurally sound. To overcome this particular problem, in the Civil Engineering Department of the Delft University of Technology a manually operated tool has been developed with which strong and tight lacings of galvanized steel wire can be strung around the poles in order to keep them together. This principle has been applied in spatial-type structures, where larger numbers of identical, relatively thin, poles of 10 cm diameter are interconnected to form double-layer grids. According to this principle a few prototype structures have been built and test-loaded, including the load-bearing frames of two agricultural buildings, one at Lelystad in The Netherlands and one at Winchester in England. A few others are under construction. The tool was originally designed for use in developing countries. For other countries a more industrialized way of producing the laced connections is considered.

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