Stress Transmission Mechanism in RC Footing Beam Supporting Exposed-type Corn Base with Unbonded Anchor Bolts

Abstract

Experimental study was carried out to examine the effectiveness of arrangement of reinforcement in a footing beam for an exposed-type steel column base. In the study, location of horizontal anchor and amount of vertical reinforcement are selected as experimental parameters to investigate suitable arrangement of reinforcement. In the tests, a column base is loaded through a column subjected to horizontal and vertical loads at the top. Test results show that the ccolumn base reinforced by horizontal anchors, which are placed at the upper side of anchor plates, and by a few amount of vertical reinforcement does perform as well as that fully reinforced by vertical reinforcement.