| In light steel structure,corrugated steel sheet can bear load with the steel frame together. Because it has large capacity of shear-resistance in its own plane. This is good for the structure to bear load in spatial manner. And this is called stressed-skin effect of corrugated steel sheet. This paper analyzes the mechanism of stress diaphra}n action, reviews the theoretical and experimental researches on stressed skin effect,use the finite element analysis software "SAP2000" and the finite element method for geometric nonlinear analysis of diaphragm structure under static loading is presented in this paper by finite-element software. By comparing the result of analysis of the models it finds the contributions of skin to buildings,such as the distribution law of internal force and the situation of deformation.First,Set up the models coincidence to the experiment,analysis of diaphragm braced columns under static loading. The results have good agreements with the result of other's experiments,so we can analyze the structure with this method. Then analysis through computer loading simulation the ordinary light steel structure without considering the stressed skin action, the light steel structure considering the stressed skin action and the light steel structure considering the stressed skin action which the plane fram is of unstable system, by comparing the result of analysis of the models it finds the contributions of skin to buildings.Second,comparing the single layer of light steel structure and the steel considering stressed skin diaphragm and without considering stressed skin diaphragm,and analys the"entity body system"of skin diaphragm Considering the effect of the the thickness of the panel,the A of the column and the slope of the roof are studied.Finally, some conclusions and suggestions that are important to design and construct are obtained,and which provides a good basis for the further research of the stressed skin diaphragm structure.
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