Concrete column has 2 kinds of rebar. The thick rebar parallels the column is called “main rebar” and the thin rebar surrounding main rebar is called “hoop rebar”. □■□ Question ■□■ In some brochures of condominium, it is insisted that “Thi…

Rebars are arranged into concrete wall both vertically and laterally. “Double rebar arrangement” means that the 2 pairs of these vertical and lateral rebars are arranged into concrete wall. □■□ Question ■□■ In some brochures of condominium…