ANCHORING STRUCTURE

摘要

An anchoring structure comprises an anchor rod (10) which is secured to the inside of an anchor hole (40) in concrete (30) by a cementing material (20) except for an upper section of the rod (10) having a depth of at least 1.5 times the diameter of the anchor hole (40). The upper end of the anchor rod (10) may be surrounded by an insulating sleeve (50) which fits into the upper section (70) of the anchor hole (40). The anchor rod (10) may have a continuous groove formed therein, at least one surface (60) of which has a slope of 15 - 50 DEG . The depth of the groove is at least as large as the maximum crack width expected to appear around the anchor in the concrete (30).