The invention relates to wedge-shaped
honeycomb joist steel member, belonging to the technical field of
joist steel members, which solves the problems that the average
stress level of the prior constant section type steel member is low; the section height can not change with load action; the whole member intensity can not be brought into full play, which results in the increase of steel consumption and high construction cost; meanwhile the problem of the complex and dense pipeline
layout because of the using function requirement is solved. An upper
flange (1) of profile steel is fixedly connected with the upper end face of a
joist steel web plate (3); a lower
flange (2) of profile steel is fixedly connected with the lower end face of the joist steel web plate (3); the tapering ratio shaped by the upper end face and the lower end face of the joist steel web plate (3) is Alpha; the joist steel web plate (3) comprises an
upper tooth-shaped web plate (4) and the
lower tooth-shaped web plate (5); a cusp (4-1) of the
upper tooth-shaped web plate (4) is fixedly connected with a cusp (5-1) of the
lower tooth-shaped web plate (5); a
honeycomb hole (6) is formed by the cusp (4-1) of the
upper tooth-shaped web plate (4) and the cusp (5-1) of the
lower tooth-shaped web plate (5). The wedge-shaped
honeycomb joist steel member provides a practical door-type
rigid frame system member for industrial and civil building.