SIMULATIONS OF THE STRESS DISTRIBUTION OF ADHESION OF ANCHORS BONDED TO THE CONCRETE STRUCTURE DEPENDING ON THE INCREASE IN THE PULLING FORCE

What is it about?

The article presents a stepwise increase in adhesion stress with an increase in the pulling force in accordance with the conducted experimental tests. The pull-out force increases according to the programmed experiment is 0.5 kN / s to reach a limit force of 80 kN. The differentiation in the concrete solid elements concerned the depth of anchoring in the structural layer. Anchoring levels in the construction layer are respectively: 2cm; 3 cm; 3.5 cm; 4 cm; 5 cm and full section, i.e. 6 cm. The distribution of adhesion stress at the same time depends on: the class of concrete, the adhesive stress of the contact material, i.e. resin, and the effective anchorage depth. Resin strength parameters have an impact on the distribution of stress trajectories both when conducting experimental tests and during the generation of a numerical model with given material data and load diagrams included in conducting experimental research. Computer simulation is a picture of a phased numerical destruction of a glued joint until it is destroyed.

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