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Table 1 Properties of test specimens.

From: Structural Performance of PC Double Beam–Column Connection Under Gravity and Seismic Loading

Specimen Concrete compressive strength (MPa) Beam Shear strength (kN)
Lower column (bracket) Double beam Upper column CIP concrete Top|bottom rebars dP|dN a (mm) Mnb (kN·m) [Eq. 1] Pnc (kN) Vertical Vn [Eq. 2] Horizontal Vnh [Eq. 5] Joint shear strength Vjn [Eq. 6]
GPC1 34.8 34.8 34.8 27.7 14D13|4D19 500 433 414 1206 4431
GPC1-AF 34.8 34.8 34.8 27.7 14D13|4D19 500 492 471 1206 4431
GPC2-AF 34.8 34.8 None 27.7 14D13|4D19 500 492 471 1206 4431
SRC 40.3 40.5 none 9D13|6D16 500|500 301|292 239 1340 3195 1238
SPC1 38.4 41.8 41.8 40.3 9D13|4D16 500|500 210|292 188 1340 3195 1261
SPC2 41.8 41.8 none 40.3 9D13|4D16 500|500 210|292 188 1340 3195 1261
  1. adP and dN = effective depths of beam cross sections for positive and negative moments [Fig. 7b and c].
  2. bPositive moment | negative moment.
  3. cPn was calculated using 2Mn/ls (Fig. 4a) for specimens GPC1, GPC1-AF, and GPC2-AF under gravity loading, whereas for specimens SRC, SPC1, and SPC2 under cyclic lateral loading, Pn was calculated using Eq. (8).