Seismic Performance of Exterior Steel Ring-Stiffener Joint

Table 1

Parameters of the specimens.

Specimen	Column dimension D × t × L	Steel beam sectional dimension	Axial compressive ratio, n	Slab type	Specimen type
SJD-1	150 × 3 × 1,500	150 × 75 × 5 × 5.5	0.07	Reinforced recycled concrete slab	Common joint
SJD-2	150 × 3 × 1,500	150 × 75 × 5 × 5.5	0.18	Reinforced recycled concrete slab	Common joint
SJD-3	150 × 3 × 1,500	150 × 75 × 5 × 5.5	0.29	Reinforced recycled concrete slab	Common joint
SJD-4	150 × 3 × 1,500	150 × 75 × 5 × 5.5	0.18	Reinforced recycled concrete slab	Joint with bolts
SJD-5	150 × 3 × 1,500	200 × 100 × 5.5 × 6	0.18	Reinforced recycled concrete slab	Common joint
SJD-6	150 × 3 × 1,500	150 × 75 × 5 × 5.5	0.18	Slab composited with profiled steel sheet	Common joint
SJD-7	150 × 3 × 1,500	150 × 75 × 5 × 5.5	0.18	—	Common joint