Abstract
In recent years there has been increasing international interest about designing structures that cost less to repair after they have been subjected to strong earthquakes. Considering this interest, an innovative repairable fuse device has been developed for dissipative beam-to-column connections in moment-resisting composite steel and concrete frames. The seismic performance of the device was assessed through an extensive experimental program comprising ten cyclic and two monotonic tests. These tests were conducted on a single beam-to-column specimen with different fuse devices for each test. The devices varied in terms of the chosen geometric and mechanical parameters. The tests showed that the devices were able to concentrate plasticity and to dissipate large amounts of energy through non-linear behavior. Numerical models were developed with Abaqus and simplified design models are also proposed.
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