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Structural Engineering and Mechanics
  Volume 8, Number 4, October 1999, pages 383-399
DOI: http://dx.doi.org/10.12989/sem.1999.8.4.383
 


Comparative studies of double- and triple-layer space trusses
El-Sheikh A

 
Abstract
    in some space truss applications, particularly those with large spans, the choice of a triple-layer system might prove more cast effective than the more commonly used double-layer solution. However, there are currently no clear guidelines as to which system would be more competitive for intermediate span lengths. in this paper, comparisons in terms of the weight, stiffness and number of joints and members are made between the two system types and presented in order to simplify the choice process for the designer. The comparisons are carried out using an approximate analysis technique that is explained in this paper, and checked to be reasonably accurate and suitable for the preliminary design of space trusses.
 
Key Words
    space trusses, approximate analysis, design, competitiveness
 
Address
El-Sheikh A, Univ Dundee, Dept Civil Engn, Dundee DD1 4HN, Scotland
Univ Dundee, Dept Civil Engn, Dundee DD1 4HN, Scotland
 

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