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Concrete column reinforcement detail

November , 14th 2019 | Via: Sergiolinde(Pinterest) | Seen: 9360 times
From the following detail we could add the the additional information as follows:

Folded bars at the bottom:

     - Reviewing the Spanish seismic regulations, the current NCSE-02, it is understood by discarding that if the reinforcement is compressed it is recommended to bend it outwards, not mentioning if it is in tension, but in the drawing when it is in tension it is specified inwards.
     - The ACI agrees with these indications: If the reinforcement is in tension, it should be anchored inwards, if it is compressed, outwards.
     - Reviewing EC-8 and the NCSR-23? draft, seems that there is no information about it.

Need for the closed shear stirrups inside the slab:

     - According to ACI 318-19: columns must extend their longitudinal and transversal reinforcement within the foundation to ensure that the bars can work both in tension and compression within the node, dissipating energy in the inelastic range, if required. The extension of the transverse reinforcement guarantees that there is confinement of the concrete core and lateral bracing for the bars (limiting their failure by compression). Therefore, under the seism event, this reinforcement is needed.
Concrete column reinforcement detail
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