THE EVOLUTION OF POST-INSTALLED REBAR DESIGN CONCEPT WITH THE NEW TR069

Background

Post-installed rebar connections have been offering a proven solution for post-installed concrete-to-concrete joints, such as wall and column connections, for decades. However, the scope of application has so far been limited by the design method according to TR 023.

Technical Report TR 069 covers the design of post-installed, moment resisting concrete connections

In the meantime, EOTA has developed the new post-installed rebar design method TR 069, published in 2019 “Design method for anchorages of post-installed reinforcing bars (rebar) with improved bond-splitting behavior as compared to EN 1992-1-1” allows for the design of post-installed, moment-resisting reinforced concrete connections under static loading conditions without using a splice configuration.

This extends the area of application for post-installed rebars considerably and increases the flexibility in your design.

HILTI HIT-RE 500 V4: Qualified through EAD 332402-00-0601

To design with TR069, the product used for post-installed rebar must be assessed following the EAD 332402-00-0601 “Post-Installed Reinforcing Bar (Rebar) Connections with Improved Bond-Splitting Behavior Under Static Loading”. This includes methods and criteria to assess the real bond-splitting behavior rebar systems, which, depending on the product characteristics, can be significantly higher than for cast-in rebars in accordance to Eurocode 2.
Hilti HIT-RE 500 V4 injectable mortar system is qualified through EAD 332402-00-0601 and can thus be designed and executed by TR 069.

Design TR069 in a productive way: PROFIS Rebar

The best thing: In addition to the approved HIT-RE 500 V4 injectable adhesive mortar, Hilti also offers the user-friendly and free-of-charge design software PROFIS Rebar. Post-installed reinforced concrete joints can be calculated and documented quickly and easily, step by step.
If you would like to start using PROFIS Rebar and start design as per TR069, visit our webpage by clicking here
 
Summary

With the TR069 & Hilti RE 500 V4 together, they offer you the following advantages:
• A significantly increased variety of applications for post-installed rebar connections
• Flexibility in the planning of post-installed, rigid connections
• Higher loads and thus reduced anchorage depths
• Uniform design according to European standards and the latest technology
• A product qualified in accordance with ETA, with the associated PROFIS Rebar design software