Elastoplastic Analysis Of Top And Seat Angels With Double Web Angels Connections

Since steel structures have light weight, easy installation, short construction period, better seismic behavior, effective investment, less environment pollution, and good recycle, they are popular to many fields in our country. Some buildings for heavy industry and basal establishment, great public architectures, bridges, high buildings, house systems and so on. The design for beam-to-column connections is critical to the whole steel frame. In the conventional design, the behavior of beam-to-column connections is treated as either ideal rigid or pinned joints. That means the beam-to-column connections can not transfer moment and they turn absolutely. In other hand, the angle between beam and column is changeless after bearing loads. Through this simplified method much work can be reduced, the structure based on the method will be insecurity or conservative. In the practical engineering, the beam-to-column connections are between pinned and rigid, namely semi-rigid. Some research has been done in the foreign countries. In our country the conesponding work is little. At present, there are no special steel structure codes for beam-to-column connections. The behavior of beam-to-column connections is usually treated as either rigid or pinned. During the design process, only the elastic stress is considered. In order to discuss the behavior of the semi-rigid connections, the elastic plasticity of a new joint-top and seat angle with double web angles semi-rigid connection is analyzed with numerical method.In this paper 3-D nonlinear finite precise numerical simulation experiment has been done for this kind of joints. In the analysis the element SOLID92 with ten...