Anchorage reinforcement strength

Reinforcing bars must fulfil several requirements regarding strength, ductility, bond to concrete, weldability, etc. To achieve suitable anchorage when embedded in concrete, ribbed bars are normally used. Mechanical properties that are relevant for reinforcing bars are elastic modulus, strength and ductility. For instance, European standards that deal with reinforcement for concrete structures generally pre-... 

The pull-out strength, or anchorage resistance, Tpo produced by the reinforcement layer will be (Eq. [15.18]) ... 

If the geotextile reinforcement of width B resists design strength P, the length of anchorage for the two cases of direct shear and pull-out modes is as follows (Eqs. [15.19] and [15.20]) ... 

Once the maximum strength of the reinforcement is checked, for each reinforcement it shall be verified that it is sufficiently anchored to withstand the applied load. The puU-out strength, or anchorage resistance, Tpo, is evaluated according to Eq. [15.18]. The check is carried out on each layer and the following equation must be verified (Eq. [15.24]) ... 

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