Steel bar positioning mechanism for building construction

The utility model provides a reinforcing steel bar positioning mechanism for building construction, belongs to the technical field of construction tools, and aims to solve the problems that the operation is inconvenient when a bent part of a reinforcing steel bar is positioned, and the operation convenience when the reinforcing steel bar is positioned is influenced. Comprising a positioning support, a clamping control frame, a distance adjusting mechanism, a positioning auxiliary structure, a rubber base and a driving auxiliary mechanism. The two clamping control frames are slidably connected to the top end of the positioning support in a bilateral symmetry mode. The distance adjusting mechanism is arranged between the positioning support and the clamping control frame. The positioning auxiliary structure is arranged at the outer end of the transmission auxiliary shaft; the rubber base is arranged at the lower end of the outer side of the positioning support in a reciprocating sliding mode. The driving auxili