| Currently light steel structure is widely used in projects. Although the designing of main structure can be solved by criterions of codes, the research in sheathing of the building is quite scare, especially in the fields of clip connection between the profiled steel sheets and members. Many project accidents happened resulting from the failure of the fasteners.At first part, a simple example is analyzed to study the theory of contact analysis and to demonstrate the application of it. Then it can be applied to the analysis of sheets connected by clips. Software ANSYS is used to simulate the process of sheets' bending which are connected to the members by clips. The result is compared with the test, and the feasibility of numerical modeling method is established.Based on the numerical modeling method, sheets connected by the clips are analyzed according to the detailing in practical engineering to study the failure mechanism under wind suction. Several factors such as friction factor, the thickness of profiled sheets and the thickness of supports are analyzed as parameters and several methods to improve the ultimate load capacity are suggested.The paper studies the profiled sheets' capacity of bearing shear loads in advance. Numerical modeling method is also adopted to simulate the shear behavior of the basic panel. Not only the sheets connected by the self-tapping screws are analyzed, but also the sheets connected by clips. The ultimate shear resistance and the shear stiffness are calculated by related American codes. Several conclusions can be deduced from the results. Based on these conclusions, the paper studies the sheets connected both by clips and self-tapping screws through test and numerical analysis. At last, two important parameters which possibly affect the ultimate shear resistance are analyzed. |
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