COORDINATED FORM-FINDING ANALYSIS OF CABLE-STRUT-MEMBRANE SPACE STRUCTURES

Through the coordinated form-finding analysis of cable-strut-membrane space structures, both a new solution method named form-finding iteration solution method suite for form-finding analysis of cable-strut-membrane space structures and the solution arithmetic are proposed by means of a non-linear finite element form-finding theory of cable-membrane structures, a prestress-finding method of cable-strut systems and construction form of cable-strut-membrane structures. Finally, the method developed herein is validated by one example and some conclusions are made as follows: the form-finding results agree with equilibrium equations, compatibility equations and boundary conditions assigned by architects; passive prestressed tension of the cable should be determined by computing when the design is checked. The program introduced by this paper can be used to check design considering construction form of cable-strut-membrane space structures.