Novel short segment steel box-concrete combined beam

The invention relates to a novel short segment steel box-concrete combined beam, which belongs to the technical field of bridge engineering. The novel short segment steel box-concrete combined beam comprises a steel box beam, anti-shearing connecting elements (4) and three-side outer covering reinforced concrete structures, wherein the steel box beam is formed by short segment steel boxes (1) through split joint via split joint plates (2), the anti-shearing connecting elements (4) are arranged on the two side surfaces and the top surface of the steel box beam, the three-side outer covering reinforced concrete structures consist of concrete (3), vertical steel bars and transverse steel bars and are arranged on the two side surfaces and the top surface of the steel box beam. The novel short segment steel box-concrete combined beam has the beneficial effects that the steel box-concrete combined beam is adopted, the tensile performance of the steel boxes and the pressing resistance performance of the concrete are sufficiently utilized, the steel materials are saved, the cost is reduced, and the obvious economic performance is realized. The steel box beam adopts the segment split joint, the short segment steel boxes and the split joint plates can realize the mass production, the construction progress is fast, and the construction period is short. The combined beam adopts the three-side outer covering reinforced concrete, and adapts to the characteristic of variation of the straddle type monorail traffic rail beam line change, i.e. the three-side stress and line type variation requirement is met.