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Structure Drawing Detailing for Reinforced Concrete Structures

The structure drawing must include reinforcement details as well as any other information required for detailing the reinforcement. The drawings must also include separate notes indicating live loads, concrete strength, steel quality and grade, the number of bars to be lapped and the lengths of the laps, and any special instructions for formwork erection, fabrication, and steel placement.

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How to Calculate Chair Bars Requirements?
Chair bars

How to Calculate Chair Bars Requirements?

A chair bar is a piece of bar bent to a shape (inverted U or Z) and placed in between the two layers of reinforcement mesh. They are provided to maintain the gap the layers of the reinforcement bar. They also contribute to the stability of reinforcement bar while concrete is pouring.

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