Calculation And Study On Form-Findng And Static Property Of Prestressed Cable-Net Structure

Nowadays the long span space structure has a high-speed development and Tension structure has a wide-ranging using as a one of the forms of space structure due to the increment of national power and the needs of sports. The results contrast of Form-finding study and analysis is quilt few references to the study information of the Tension structure. Each form-finding method has very well reference signification for the difference practice engineering.This paper inferred the balance equation of the prestressed cable-net structure nonlinear incremental and put forward the digit process according to Pedestal displacement method of the cable-net Form-finding and combine concerted method about solving nonlinear equations. Working out the programs of Form-finding to solve the equations based on the theory of dynamic limp method. Then passing through Pedestal displacement method it carried out Form-finding of prestressed cable-net structure in virtue of General finite element programmer ANSYS and combine total Newton-Raphson and BFGS method to solve with nonlinear thinking. The result of analysis in this paper indicated the way which be used is dependable and accurate.This paper discusses the initial prestressed stress and structure weight with regard to shape stable and determined the chief affect element of it and property of static actions.