After casting 1.5 m of column, we just lift the short side up to full-casting height of column next day.Īnother way to cast column without segregation is to keep a small window at 1.5 m level of full-height formwork. So we should make one-side of column formwork within 1.5 m height range. But one thing should be considered here is that dropping concrete from above 1.5 m height isn’t suggested during pouring. So, the casting height of our column will be 2.65 m. Suppose, beam height specified in drawing is 0.45 m. If the slab has beam then we have to pour concrete up to beam bottom level. Column formwork: In building, floor height is normally kept 3 m. You should read those before column reinforcement work.ģ. In that drawing sheet, you’ll find suggested lap length for column’s steel of different diameter bar and other important notes. There is a sheet in structural drawing which contains structural notes from structural designer. This C2 column’s reinforcement specification means that it’ll have 8 numbers of 20 mm diameter bar as well as 10 numbers of 16 mm diameter bar as vertical reinforcement and (10 cm+15 cm) center to center of stirrups placement means middle-half portion of clear height of column will have 15 cm center to center spacing of stirrups and upper one-fourth as well as bottom one-fourth height of column’s clear height will hold stirrups at 10 cm center to center spacing.
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