The Structural Engineer > Archive > Volume 60 (1982) > Issues > Issue 13 > Limit State Design of Pin-jointed Space Structures
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Limit State Design of Pin-jointed Space Structures

Slender space structures covering large areas can suffer from excessive deflections. In this paper a simple but exact method is given for the design of such structures. This calculates the cross-sectional areas of members so that recent limit state design requirements for strength, well as deflections, are fully satisfied. The method does not depend on analysis of the structure with preselected sections and thus removes need for the explicit solution of a large number of simultaneous stiffness equations. In this manner it saves considerable computer time. Instead proportions the members in the most economic manner and calculates their unknown areas. A design procedure is given so that all the recent BSI recommendations for the limit state design of steel structures satisfied. The results of an investigation into the design of space structures are then reported, in conjunction with a number of practical examples. K.I. Majid and S.Okdeh