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Subsequent connection of structural concrete and reinforced-concrete components

Long-term structural behavior of bonded anchors

Figure: TUM

→ 1 Modified Burgers model for predicting the long-term structural behavior of bonded anchors

Figure: TUM

Figure: TUM

→ 2 Progress of the degradation test to quantify material degradation

Figure: TUM

Figure: TUM

→ 3 Comparison of times to failure predicted in the model with times to failure determined in tests of one bonded anchor type under permanent loading

Figure: TUM

Bonded anchors are used to connect additional concrete or reinforced-concrete components to existing structures. They are subject to permanent loading during their service life. Under this permanent action, their structural behavior significantly differs from their short-term behavior because they exhibit nonlinear viscoelastic properties that result in considerable creep. It is thus necessary to determine the long-term structural behavior of bonded anchors as accurately as possible to ensure a connection design that is permanently safe throughout the entire use phase of the building or...

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