Corrugated steel web combination ribbed beam and construction process thereof

The invention discloses a corrugated steel web combination ribbed beam and a construction process of the corrugated steel web combination ribbed beam. The corrugated steel web combination ribbed beam comprises bottom flange plates, top flange plates and corrugated steel webs, wherein the corrugated steel webs are arranged between the bottom flange plates and the top flange plates in a supporting mode. A prestress system is laid in each bottom flange plate and comprises a middle prestress structure and two side prestress structures. The construction process of the corrugated steel web combination ribbed beam comprises the following steps: firstly, the prestress systems and the corrugated steel webs are laid and installed; secondly, the bottom flange plates are constructed, wherein according to the step 201, concrete is poured into the middle of a segment of each bottom flange plate, and primary prestress tensioning is conducted; according to the step 202, the concrete is poured into the rest of each bottom flange plate, and secondary prestress tensioning is conducted; the top flange plates are constructed before the bottom flange plates are constructed or when the bottom flange plates are constructed or after construction of the bottom flange plates is completed. According to the corrugated steel web combination ribbed beam and the construction process of the corrugated steel web combination ribbed beam, the design is reasonable, construction is convenient, and the corrugated steel web combination ribbed beam which is constructed and formed is reasonable in stress, good in usage effect and capable of solving various problems of an existing concrete ribbed beam.