Two steel reinforced concrete column-steel beam joints after exposure to fire and one comparative steel reinforced concrete column-steel beam joint at room temperature without exposure to fire were tested under low cyclic reversed loading to study the seismic performance of steel reinforced concrete column-steel beam joints after exposure to fire.Test results show that the failure modes of steel reinforced concrete column-steel beam joints after exposure to fire are almost the same as that at room temperature.Due to the shear resistance action of its inner shapedsteel

the maximal loading strength of steel reinforced concrete column-steel beam joints after exposure to fire declines indistinctively

but displacement corresponding to the maximal loading strength increases notably.The rigidity

the ductility and the energy dissipation of steel reinforced concrete column-steel beam joints after exposure to fire are all reduced compared with that at normal temperature

and the reducing degree increases with the increasing of heating time once experienced.But as a whole

the displacement ductility coefficient and equivalent damping ratio of steel reinforced concrete column-steel beam joint after exposure to fire still keep on a relative high level

indicating excellent seismic performance.