MEMBRANE ARRANGEMENT FOR MEMBER BUCKLING OF DOUBLE-LAYER LATTICED STRUCTURES

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Publication year 2002
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Title MEMBRANE ARRANGEMENT FOR MEMBER BUCKLING OF DOUBLE-LAYER LATTICED STRUCTURES
Author Yoshiya Taniguchi,Toshitsugu Saka,Tooru Maehata
Summary As a new structural system for spatial structuresEŒa hybrid structure consisting of membrane and space frames was already presented. In this caseEŒmembrane as well as latticed members is taken into account as a structural element and play a role in restraining the member bucklingEŒto increase the buckling strength of the whole structure. The membrane materials used in spatial structures are usually PTFT coated glass fiber fabrics being orthotropic. Then in this paperEŒthe effect of membrane arrangement on the elastic buckling load and buckling mode is numerically investigated for double-layer grids of two types. The membrane arrangement of 5types is adopted for each grid. As a resultEŒthe buckling mode can be changed by some membrane arrangements and the buckling strength increase in the range of 54-98% higher than the double-layer grids without membrane.