Abstract: A compound anchor and method for joining concrete parts is disclosed. The compound anchor has a rod-shaped anchor body and a compensator component, which has at least one deformable element and is situated to be movable at least axially in relation to the anchor body. A first section of the anchor body is accommodated in a first concrete part and a second section having the compensator component is accommodated in a second concrete part. Openings are formed in the concrete parts so that a blind hole is formed in the first concrete part and a through-opening is formed in the second concrete part. The first section of the anchor body is secured in the blind hole and the second section having the compensator part is in the through-opening. The through-opening is then filled with a cement so that the second section is secured in the second concrete part.

Abstract: A drilling module for creating multiple drill holes in a component is disclosed. The drilling module includes several drilling units and a basic frame having a displacement device for displacing the drilling units in a first direction. The displacement device is configured such that the drilling units can be arranged displaceably on the basic frame in a second direction differing from the first direction. A drilling device unit for arrangement on a vehicle is also disclosed.

Abstract: An anchor bar includes an anchoring section (16; 26), a threaded section (17; 27), and an intermediate section (18; 28) located between the anchoring section (16; 26) and the threaded section (17; 27) and having an anti-adhesive surface.