Cyclic Testing of Concrete-Filled Double-Skin Steel Tubular Column to Steel Beam Joint with RC Slab

Figure 15

P-Δ envelope curves of the specimens: (a) effect of the RC slab; (b) effect of the stiffening of the web anchorage plates; (c) effect of the infilled concrete; (d) effect of the thickness of the RC slab.

(a)

(b)

(c)

(d)