SEVERAL PROBLEMS ON STEEL REBAR USED IN CONCRETE STRUCTURE IN CHINA

The analysis of tensile strength and tensile ratio of several sort of rebar currently used in China shows that new grade III of hot-rolled steel bar shall be the popular sort to be used in concrete structure. It shall be used as main reinforcement in beam and column components to replace rebar of grade II. However cold-finished steel, especially cold rolled twisted steel is of more advantages in components in bending such as slabs. Therefore it shall be popularized.