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Inclined stirrups

Inclined stirrups

Inclined stirrups

(OP)
Hi everyone,

What is the effect on flexure strength of installed inclined stirrups for reinforced concrete beams and is it effecient for earthquake design?

Thank you in advance

RE: Inclined stirrups

Inclined stirrups can work, as long as they are installed in the right direction. They have to intercept diagonal tension cracks.

RE: Inclined stirrups

Actually inclined stirrups can be more efficient than vertical ones
but it is easier to install them vertically


best regards
Klaus

RE: Inclined stirrups

I would expect inclined stirrups to be a poor choice seismically because:

1) seismic shear is reversible so you couldn't orient the stirrups properly.
2) I'd expect confinement to be poorer for inclined stirrups.

Obviously, these things would be less critical for beams resisting only gravity loads.

We generally supply stirrups for shear strength but you specifically referenced flexural strength. Might you be interested in bent/trussed longitudinal bars rather than stirrups?

I like to debate structural engineering theory -- a lot. If I challenge you on something, know that I'm doing so because I respect your opinion enough to either change it or adopt it.

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