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In North America and Europe and other developed countries , extremely light steel keel system is in the form of a widespread adoption of low-rise residential structure , compared with traditional residential structure , extremely light steel keel system house has standardized space layout flexibility , good seismic performance , can be industrial production , short construction period . Due to the special structure of the extremely light steel keel system , the node just pick the framework of the model , overestimate the carrying capacity . The mechanics model node hinged Bent extract will form institutions , so that the calculation can not be . Therefore , in order to predict the actual force performance of such a system , we should consider the real linear semi-rigid connections in structural analysis and design . In this paper, the extremely light steel keel architecture self-tapping screw connection of steel tubes and connectors for the study, and the node connectivity made ??the following three - part study . 1 , L , T and cross-shaped node test, by force characteristics by experimental data and the theory of finite element analysis . By ANSYS extremely light steel keel system node model , compare the results of the the typical truss beam test data and the finite element analysis , good agreement between the two , in order to verify the correctness of the the truss beam finite element modeling method and feasible sex . Comparative analysis by finite element simulation of the beam-column joints , further study on the stiffness of the beam-column joints , the ultimate bearing capacity analysis and summary of the various factors that affect the carrying capacity of beam-column joints .
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