بررسي رفتار غيرخطي اتصال پيچي با صفحه انتهايي

Investigation of Nonlinear Behavior of Bolted End-Plate Steel Connections

In this paper the effect of parameters such as thickness of plate, bolt diameter and bolt gage distance from beam flange and web on nonlinear behavior of bolted end-plate connection, is investigated. In this regard, ANSYS nonlinear structural software was used for analyzing connection models. The results of this research were verified with experimental results of one sample. In this study 30 models with different geometries were selected for nonlinear analysis. Moment-rotation curves were obtained for all the models and compared with each others. The results obtained showed that thickness of end-plate, configuration of holes and bolts, thickness of beam flange and web, presence of stiffeners, and bolt diameter affect the stiffness and strength of connection differently. Increasing in end-plate thickness and decreasing in distance between bolts and beam web, increase the stiffness of connection. Also, increasing in bolt diameter increases the stiffness of connection but not as much as the previous two parameters do.