Design Of Cable And Membrane Structures Awning And Analysis On Accident Of Membrane Structure Projects

The cable and membrane structure awning of stadium is a awning structure form which is different form traditional ones. It is applied more and more widely in the projects due to its particular and novelty shape. Also it break the anciently design procedure which is architecture first, structure second.The whole design procedure of cable and membrane structures awning is composed of three parts. The first one is form-finding analysis. The aim of this part it is to find a satisfying tensioned surface under the equilibrium between cable force and membrane stress. The second is loading analysis. Based on the found form, it is expected to get the strain and stress of cable and membrane structures under the loads. The third one is cutting pattern analysis, which generated the number of membrane block and the cutting method. The last one is calculate the result of the infrastructure under the loads which are passed form superstructure.This thesis derived the equation of force density method.. And a stadium awning has been designed in this thesis. The force density method has been used to analyze the shape, and the nonlinear finite method has been used to analysis the loads.Summarize the reasons of membrane structure lacerated accident and other membrane structure common fault. In additional, the thesis take a research on a membrane project accident. Compare the results of the practical structure and the design structure under the loads and get the reason of the accident. Then four reinforce projects which are added with wind-resistance cable are suggested and through the compare the best one is be selected. At last, this thesis compare the date of the wind-resistance cable under different pre-stress and get some regularity results.