Construction method of steel reinforced concrete beam of large metallurgical industry plant

Abstract

The invention discloses a construction method of a steel reinforced concrete beam of a large metallurgical industry plant, and belongs to the technical field of plant building construction production. The provided construction method of the steel reinforced concrete beam of the large metallurgical industry plant can ensure the manufacturing quality of the steel reinforced concrete beam. The construction method comprises the following steps of: arranging a steel skeleton, and adjusting the installation quality of a steel reinforced post by adjusting a shim plate and a wind cable; arranging a concrete steel rib outside the steel skeleton in an order of arranging the outer side of the steel reinforced post, arranging the outer side of the steel reinforced beam and finally arranging a concrete steel rib at the joint of the steel reinforced post and the steel reinforced beam; supporting a concrete cast template of the steel skeleton, and casting concrete inside and outside a steel reinforced post box body; finally, casting concrete on the steel reinforced beam by adopting a single-side feeding vibrating and single-side driving casting method, a two-side symmetrical layered feeding vibrating casting method and a middle feeding symmetrical driving vibrating casting method; and detaching the cast template after the strength of the concrete meets the design requirement, and curing the concrete.

Description

technical field [0001] The invention relates to a construction method of a steel-reinforced concrete beam, in particular to a construction method of a steel-reinforced concrete beam of a large-scale metallurgical industrial factory building, and belongs to the technical field of factory building construction and production. Background technique [0002] Steel reinforced concrete frame structure is a new type of building structure developed after steel structure and concrete structure. It combines the advantages of steel structure and concrete structure. Compared with steel structure, steel reinforced concrete structure can improve the overall and Local yield performance, increase structural rigidity and damping, save steel, anti-rust and anti-corrosion; compared with concrete structure, embedded steel skeleton can improve the bearing capacity of the structure, reduce the cross-sectional size of components, increase the building usable area, and enhance shear performance and ...

AI Technical Summary

Problems solved by technology

[0004] In the construction of workshops, especially large-scale metallurgical industrial steel-reinforced concrete workshops that work under large-scale, high-temperature, and heavy-load conditions, there are not only steel-reinforced concrete beams, but also steel-reinforced concrete columns. The form of the column connection is particularly complicated, and the installation accuracy of the steel frame composed of steel columns and steel beams is particularly high; in addition, in addition to the steel frame embedded in the concrete, there are densely packed concrete embedded in the outer side of the steel frame. Concrete reinforcement composed of studs, stressed reinforcement and transverse fixed stirrups, which brings many problems to the layout of concrete reinforcement, especially the layout of concrete reinforcement at the joint, and cannot guarantee the layout of concrete reinforcement outside the steel skeleton. quality, which reduces the overall quality of steel reinforced concrete after pouring

In addition, concrete reinforcement is added to the outside of the steel skeleton, and the pouring of concrete is more difficult, and the construction is more difficult. The pouring quality of steel reinforced concrete cannot be well guaranteed, and because the inner lining of steel reinforced concrete It is more difficult to ensure the pouring quality of the concrete when pouring the structure of steel frame beams and concrete reinforcement bars. However, due to the many technical problems mentioned above in the structure and process of steel reinforced concrete, it has not been widely promoted and applied in existing construction projects, especially those working under large-scale, high-temperature, and heavy-load conditions. It has never been used in the construction of large metallurgical industrial plants

Images