what is the best arrangement of confinement reinforcement in column and wall sections. linking every vertical reinforcement with link may lead to congestion. for this reason please elaborate what is the best arrangement that leads to creation of tri-axial state of stress and prevention of congestion?
Thanks in advance!
Hello Ephrem,
Not sure if this paper can answer your question? Have a read:
Article Improved confinement of reinforced concrete columns
Best wishes
Congestion of reinforcement in reinforced concrete elements is one of the down sides of RC structures, however following suggestions can be useful in many cases:
1. Decreasing the number of reinforcement bars (for instance, use bar size 20@200 mm instead of bar size 16@100 mm).
2.Using confinement reinforcement with especial shape (for instance, use lozenge confinement bars instead of S-shape bars in columns with square and rectangle cross-section ).
3. Using mechanical links instead of overlap links.
4. Considering the bar links in different locations of the column length (the link of half of the bars can be considered 1 meter higher than the other half ones).
Hope that you find the above-mentioned suggestions useful.
Regards
Hamed Dabiri
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