Cyclic strength degradation of shallow cast-in-place anchor bolts modeled using continuous surface cap plasticity
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Bibliographic record
Abstract
The cyclic-to-monotonic pullout strength degradation of shallow cast-in-place anchors is investigated using a continuous surface cap plasticity model within a numerically developed and experimentally validated framework. The parametric investigation considers variations in the effective depth-to-diameter ratio, concrete type, and loading regime. Results indicate that anchors with an effective depth-to-diameter ratio less than five exhibit brittle failure modes and the lowest energy dissipation capacity, whereas deeper anchors demonstrate more ductile behavior. While depth-to-diameter exponent is estimated as 1.353 for monotonic regime, cyclic pullout leads to a reduced size effect sensitivity suggesting 1.237 exponent. Moreover, introducing a top layer of steel reinforcement in the concrete slab mitigates brittle fracture size effects, as reflected by 1.219 exponent in the depth-dependent strength expression. An average cyclic strength reduction factor of 0.75 is recommended for shallow cast-in-place anchors.
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Codex and Gemma teacher scores by category
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.000 | 0.000 |
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