Abstract
In this study, a double-hinge steel frame joint with a replaceable T-shape energy dissipator was studied by conducting a cyclic loading test. Four double-hinge joint and welded joint specimens were designed and tested. The energy dissipation and weight of the joint were subsequently investigated by performing FE analysis. The results indicated that the seismic performance of the double-hinge joint is better than that of the traditional welded joint. The working mechanism of the joint was demonstrated by performing tests, and the earthquake-resilient design was verified to be both accurate and reliable. The threshold value of the slenderness ratio for the weakening region of the energy dissipator can be conservatively set to 13. In case of the failure of the energy dissipator, the deformation of the remaining components was recoverable. Approximately 85% of energy was dissipated by the energy dissipators. The earthquake-resilient function was then validated. Finally, the test process was reproduced using FE analysis. The low weight of the double-hinge joint was determined via validated FE analysis, which will improve the application of this novel earthquake-resilient joint.
Published Version
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