Fastening anchor channels with installation cones

High quality demands are placed on precast elements made of reinforced concrete. They pose a particularly high challenge with regard to the geometry. This also applies to the built-in components such as for example anchor channels. The position must be precisely coordinated with the planned reinforcement, which is often laid very tightly. Planning a reinforcement of exactly ¼ mm is currently no longer rare. Therefore perfect positional securing of the components is of utmost importance so that the components do not shift when the concrete is being poured. The positional securing must on the one hand be firmly attached to the formwork. On the other hand it must ensure that no damage appears on the formwork and the precast element, when removing the precast element from the formwork.

In order to fasten Jordahl anchor channels to steel formwork, the precast element factory of the company group Max Bögl in Sengenthal successfully uses the Jordahl installation cone. This accessory made of steel has a threaded pin on the one end and is funnel-shaped on the other end. For the installation, a threaded hole is made in the steel formwork at the intended fastening point into which the installation cone is screwed. The installation cones are placed along the axis of the projected anchor channel at a distance of about 500 mm.

Major project with about 500 elements

Next, the anchor channel is positioned and fastened to the installation cones with blind rivets through the existing nail holes. The fitness for purpose of the Jordahl installation cones was proven at the end of 2016 in a major project. For this about 500 precast elements with curved Jordahl anchor channels were produced. The uniqueness here: The anchors featured irregular distances so that they could be perfectly matched to the reinforcement. Owing to the installation cones, the anchor channels were yet perfectly positioned even though the anchor channels presented a special challenge due to their curved design. Stefan Bachschmid, the project leader for the tubbing production at Max Bögl, is very happy with the fastening solution and praises the constructive and smooth cooperation with Jordahl.

Related articles:

Fastening systems for precast concrete components

The incorporation of fastening elements in precast concrete components intended for underground engineering can already be done during manufacturing. For this purpose, anchor channels and...

Issue 2012-11 Jordahl GmbH

New name, well-proven quality

After a company history lasting for more than 100 years now, Deutsche Kahneisen Ge- sellschaft based in Berlin changes its name and with immediate effect operates under the name Jordahl GmbH. The...

Issue 2010-05 Embedded parts

Fastening system for tubbing construction

A foam filling is inserted in the Jordahl® channels as to prevent concrete penetrating in the same. Precise mounting of the anchor channels is achieved by a fixing system at the bottom of the...

Issue 2013-05 Hilti Deutschland

Support system for anchor channels

At this year‘s BAU Trade Fair in Munich, the Hilti company introduced a support system for their HAC anchor channels. It is expected to be on the market soon. It can be difficult to correctly...

Issue 2012-10 Jordahl

Anchor channels - now fit for EC2

As one of the first manufacturers in Germany, Deutsche Kahneisen GmbH has been granted the European Technical Approval (ETA-09/0338) for their Jordahl JTA-CE anchor channels. The new JAT-CE anchor...