Title

The use of double U-bar stirrups in seismically loaded reinforced concrete beam-column joints

Abstract

The performance of double U-bar stirrups, in the joint core region of seismically loaded beam-column connections, was compared with that of conventional square bent-up stirrups. The new type of stirrup consists of two half stirrups, bent into the shape of a U, forming a square with overlapping legs. These are easier to fix in congested joint core regions. Experimental and analytical results showed that double U-bar stirrups with full depth overlap perform extremely well, and even maintain the integrity of the joint core better than the conventional stirrups. U-bar stirrups with only half depth overlap also performed well, but were slightly inferior to the conventional configuration. © 1995.

Publication Title

Structural Engineering Review

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