The Optimization Design Of Suspend-Dome Based On Discrete

Suspen-dome is emerging in recent years a new type of prestressed space structures. It will be composed of single-layer lattice shell and cable-strut tensile structure.the compression strut pressure shell and bottom chords are connected together by cables, and bring certain value pressure to bear on cables, the structure of the role of anti-arch, roof loads to be applied after completion, the structure recovered to a self-equilibrium state of a prestressed space structures. Because of its reasonable force that in the domestic engineering to be more widely used.Structural optimization is to meet the constraint conditions to find the optimal solution, compared with the traditional design, it has designed to save material and so is widely attention. In this paper, the characteristics of suspen-dome structure, the use of algorithms based on discrete variables bipolar structure of the dome section of optimal design.The main contents include:(1) For the suspen system of classification structure.(2)The suspen-dome structure of the preliminary design principles, loads, boundary constraints, and prestressed to determine the value of morphological analysis.(3)The establishment of Geiger suspen-domes structure of the mathematical model of Geiger suspen-domes structure of static analysis. Using the finite element software ANSYS APDL language in Geiger suspen-domes structure parameters of the model, and for static analysis and the results show that Geiger suspen-domes structure of superiority.(4)FORTRAN software development level of the program, and is connected with the ANSYS software, to Geiger suspen-domes structure has been optimized. Compared through examples to demonstrate the feasibility and effectiveness.