1. Geotechnical

Anchorages

The anchor is a fundamental part of the rod; in fact by means of the elements from which it is composed transmits to the structure anchored to the rock the tensile force of the tie rod.

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The anchors of type TTR-E are manufactured in compliance with the instructions given in the EN 1537:2013, and are available from 2 to 8 strands prepared for the combination of CAP-type long or short. This anchor offers the possibility of being put in tension with the jacks of the series TTM250kN or TTM300kN, and allows for the simultaneous tensioning of the strands with equal number of screw jacks “Stringing in iso pressure”.

To avoid pressure drop is important to reduce the flabby ropes of the free part before tensioning.

The fixing of the reinforcement takes place on a plate TTR-E equipped with holes for the housing of bushes and wedges. The plate and the bushes are made of steel in compliance with EN 10083/1, while the wedges type 7015-T15 steel are conforming to EN 10277-4.

The anchors type TTM and TTM-F are used where is required the reduction of the size of the anchor, and the version F allow the restressable in time of the tendon

Both types have been tested and qualified in accordance with the guideline ETAG013.

Products

Single strand anchorages are divided into the following bonded and unbonded types and applications. Anchorages are available in the following versions: 1E15, 1ED15, 1EX15, 1EXD15…

Connection G Series Download .PDF The connection on single strand cables is carried out by using a sleeve that allows to guarantee their connection. It…

“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…

This wedge is designed for anchoring single or multiple strands on anchor plates. It is for disposable use and it is available for different applications.

“LX” series plates are designed for the application to plates or slabs. The main characteristic of this anchorage is its dimensions AxB, where the shorter…

“M” series active anchorages are designed for traditional post-tensioning applications. They are used with galvanized or non-galvanized metallic sheaths or polyethylene sheaths. The whole device…

“ME, MEep and MEX “ active anchorages are designed for external post-tensioning and may be supplied with several applications.

Simulations made with finite element codes and laboratory tests allowed to design a compact anchorage to comply with the guidelines ETAG 013.

“Mep®” series active anchorages are designed for post-tensioning applications in an aggressive environment. They offer casting covered in epoxy-polyester coating as corrosion protection and polyethylene…

The anchorage: passive, unbonded and encapsulated, “1EX15-D2” type. It is made with the total encapsulation of the polyethylene covered anchorage, with the greased strand covered…

For use on slabs, preassembled cables can be supplied with the passive anchorage preblocked at one end, which are ready for the installation on site…

“S” series passive anchorages are produced in full accordance with the regulations in force. In this type of anchorage strands are open at the end…

The TTM anchorage is made of an anchor plate, it is equipped with wedges and an under plate for load transferring. In the permanent version…

The TTR-E anchorage is made of an anchor plate equipped with bushes and wedges; the distribution under plate may be used for load transferring when…

Anchoring: active member, such as “1ED15-A18”, is made with the anchor strand and inserted in a polyethylene conduit, application environments where protection is required in…