Anchor having a wave-shaped sleeve

The invention relates to an anchor having a sleeve, a bolt that passes through the sleeve, and at least one spreading element, which is axially mounted upstream of the sleeve, and which is axially supported on the sleeve, wherein the bolt has a spreading region for the spreading element. According to the invention, the sleeve is of wave shape having axially extending wave crests, in which both theouter radius of the sleeve and the inner radius of the sleeve each have a maximum, and having axially extending wave troughs, in which both the outer radius of the sleeve and the inner radius of thesleeve each have a minimum. 本发明涉及一种锚栓，包括套筒、穿过该套筒的栓杆和至少一个扩张元件，所述至少一个扩张元件在轴向上位于所述套筒之前并且所述至少一个扩张元件沿轴向支撑在所述套筒上，其中，所述栓杆具有用于所述扩张元件的扩张区域。本发明提出：所述套筒具有波形，该波形包括沿轴向延伸的波峰和沿轴向延伸的波谷，在所述波峰中，所述套筒的外半径以及所述套筒的内半径均分别具有最大值，而在所述波谷中，所述套筒的外半径以及所述套筒的内半径均分别具有最小值。