D Series

“D” series passive anchorages are designed for traditional post-tensioning applications where passive anchorages are to be applied. The anchor plate is supplied preassembled with fixing screws. All anchorages are provided with front grouting hole and sealed, grease-filled plate. Anchorages are provided with a rear polyethylene cone for connection to several-diameter sheaths. M castings are available in three different versions with several levels of corrosion protection: M, Mep® and MX ®

The “D” system is designed to comply with the guidelines ETAG 013 and it is awarded with the European Technical Approval ETA-09-0012 and the marking CE 0969-CPD-001/09-PT.

Simulations made with finite element codes and laboratory tests allowed to design a compact anchorage to comply with the guidelines ETAG 013. The D anchorage is designed for all the applications where the use of a passive anchorage, which is usually submerged into the grouting, is required. The steel plate that contains the wedges is preassembled and filled with grease from the factory.

The “D” series active anchorage is made of the following parts: casting, preassembled D anchor plate, wedges and connection in H.D.P.E. to connect the casting to the metallic sheath. Castings have a turned plane for the plate, holes for connection to cap and formwork and a threaded grouting hole. Castings are in spheroidal cast iron EN-GJS 500-7 EN-JS-1050, which offers a high resistance to stress. Being weldable, it guarantees the maximum safety during installation.

Strands are blocked on a distribution plate with truncated cone holes in steel C40-45 UNI EN 10083/1 and by means of wedges in steel 16NiCr4Pb UNI EN 10277-4. The plate is provided with holes, inside which the wedge and the spring thruster are placed. Everything is sealed with a steel closing cover to guarantee sealing against infiltrations to which the anchorage is exposed while grouting. The anchorage and the sheaths are connected by means of a truncated cone connection that guarantees a correct deviation of strands, minimizing the values of losses. The connection is made of H.D.P.E.

All castings have threaded holes on the plane to allow an easy fixing of the D plate to the casting.

All castings have a gas threaded hole for grouting to allow the connection to the several solutions available for grouting.