Concrete precast beam and girder connecting structure

Abstract

The invention relates to a concrete precast beam and girder connecting structure comprising a concrete superposed beam and a steel structure beam; the concrete superposed beam is arranged between adjacent main beams; the body of the concrete superposed beam in an extension direction is provided with an imbed part; the imbed part is provided with a connecting board extending to the outer side of the concrete superposed beam and used for fixing and locating the steel structure beam; the connecting board is provided with a bolt hole I; two ends of the steel structure beam are respectively provided with a bolt hole II; high intensity bolts between the bolt hole I and bolt holes II can fix the concrete superposed beam with the steel structure beam so as to form a cross intersect structure; the beneficial effects are that nodes are fastened by high intensity bolts, steel structure beam wing edges are connected through welding lines, so the prefabricated girder can form a continuous beam structure form, thus obviously improving structure and nodes rigidity, and node connecting structure can realize fully rigid connection.

Description

technical field [0001] The invention relates to the field of industrial and civil buildings, in particular to a connection structure of a concrete prefabricated beam and a steel beam. Background technique [0002] The floor concrete secondary beam is usually in the form of hinged connection. The disadvantage of the on-site hinged method is that the bending moment value in the middle of the span, the distribution of the internal stress of the beam is uneven, the middle is large, the two sides are small, and the beam does not fully play the role of the full section; the stiffness of the hinged connection The value is small, and the mid-span deflection is large; at the same time, the on-site operation requires a lot of labor and the construction period is long. social construction. [0003] Structurally, in the traditional concrete building structure, when the span is large, the beam height and reinforcement will increase accordingly; when the beam height is limited, the botto...

AI Technical Summary

Problems solved by technology

[0002] The concrete secondary beams on the floor are usually in the form of hinged connection. The disadvantage of the on-site hinged method is that the bending moment value in the middle of the span, the stress distribution in the beam is uneven, the middle is large, and the two sides are small, and the beam does not fully play the role of the full section; the stiffness of the hinged connection The value is small, and the mid-span deflection is large; at the same time, on-site operations require a lot of labor and the construction period is long. With the continuous rise of labor costs, the traditional extensive construction technology mainly based on on-site operations has seriously hindered low-carbon, harmonious construction. social construction

[0003] Structurally, for traditional concrete building structures, when the span is large, the beam height and reinforcement will increase accordingly; when the beam height is limited, the bottom column network is usually not very large, and the interior of a building with more columns is separated Inflexible to equipment arrangement, relatively poor in modifiability and usability

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