Design of post-installed reinforcing bars as end anchorage or as bonded anchor

• Presentation of two alternative design methods for reinforcing bar anchorages.
• Discussion of qualification required for systems used for the post-installation.
• Qualitative and quantitative comparison of both design methods.

Two different design methods for anchorages with post-installed reinforcing bars are available: Anchorages can be designed either as end anchorage equivalent to cast-in reinforcing bars or as bonded anchors. The two design methods are very different in their fundamental approach and range of application. This contribution presents both design methods including the technical background and addresses the qualification of systems for post-installed reinforcing bars. The interrelations between material strength parameters required for the design are systematically illustrated. The design of anchorages according to both design methods will be explained and their outcome compared.

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