What does the term "bar spacing" refer to in reinforced concrete?

Bar spacing specifically refers to the distance between parallel reinforcement bars that are embedded within concrete. This spacing is crucial for ensuring the structural integrity and performance of the reinforced concrete element. Proper bar spacing allows for adequate concrete coverage and bond strength between the concrete and the reinforcement, which is essential for the effective distribution of loads and resistance to various stresses that the concrete may face during its service life.

Inadequate spacing can lead to issues such as inadequate load transfer, reduced strength, and potential failure of the concrete structure. Therefore, understanding and correctly implementing bar spacing is a key aspect of reinforced concrete design and construction.