Polyurethane internally poured steel pipe efficient support

The invention discloses a polyurethane internally poured steel pipe efficient support and belongs to the technical field of lateral force resistant members of structural engineering. The polyurethane internally poured steel pipe efficient support comprises an axial force unit, a constraint unit and connection units; the axial force unit comprises a steel pipe and is arranged on the outermost layer of the support; the constraint unit is polyurethane which is poured inside the steel pipe; sealed space between the steel pipe and the connection units arranged at the two ends is filled with the polyurethane; the polyurethane and the steel pipe are bounded into a community; and the polyurethane is used for providing partial axial tensile and anti-stress capability for the support. The polyurethane internally poured steel pipe efficient support has the advantages of being good in hysteretic performance and strong in shock resistance energy consumption capability under the function of a reciprocating load, simple in