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Source publication
In order to realize the design concept of “strengthened column and weakened beam, strengthened connection joints and weakened components” and ensure the improvement of joints’ bearing capacity and the transfer of plastic hinges along beams far away from column ends, this paper proposes a new type of prefabricated beams with strengthen-weaken beam-c...
Contexts in source publication
Context 1
... this paper, a new type of prefabricated strengthenweaken beam-column connection joint is designed focusing on square steel tube column, external diaphragms and H-shaped steel beam members with dog-bone weakening cross section, as shown in Figure 1. The specimens shown in the figure are all processed in advance in the plants. ...
Context 2
... calculation formula is shown in the following formula (1). See figure 10 for the comparison of stiffness degradation curves of different joints. ...
Context 3
... formula: From figure 10, it can be seen that JD-6 has the largest initial stiffness and the largest stiffness degradation, indicating that adding the internal diaphragm has a significant effect on improving the initial stiffness and stiffness degradation of the joints and fully enhances the energy dissipation under earthquake. Compared with JD-1 and JD-2, JD-5 has slightly higher initial stiffness, which indicates that the initial stiffness can be increased to a certain extent by increased thickness of the square steel tube column and the beams not weakened. ...
