This minithesis present research of concrete shear – stress behavior of spiral bridle normal quality.With 8 cylinder test object of 100 x 300 mm as test object confined of 100 x 300 with spiral bridle joint and longitudinal joint, 3 cylinder test object confined of 100 x 300 with spiral bridle joint without longitudinal joint with spacin, permanen melt stress diameter and allowed axial preass…