A Construction Method for Steel-Concrete Composite Frames Connected by Cross Bolts

Abstract

The invention discloses a steel-concrete composite frame and a construction method connected by cross-through bolts, which belong to the field of structural engineering in civil engineering. First hoist the circular inner steel pipe column and steel beam inside the steel pipe concrete composite column to the designated position, and pass through the hole on the end plate and the inner steel pipe column with the cross bolt to make it closely connected with the steel pipe parts, and then cast the inner core of the pipe Concrete is placed in the inner steel pipe column, and then the peripheral longitudinal bars and stirrups are bound to form a peripheral reinforcement cage. The external support formwork is supported outside the peripheral reinforcement cage, and the concrete layer outside the pipe is poured in the external support formwork to complete the construction of a floor . The floor construction of the present invention is the concrete construction of the lower floor and the steel structure construction of the upper floor at the same time. The joint force transmission of this type of frame is clear, the performance is reliable, and the construction is simple. It is suitable for high-rise building structures; at the same time, the construction organization of this type of frame is efficient and fast. , suitable for structures with certain requirements on construction time.

Description

field of invention [0001] The invention relates to the field of structural engineering in civil engineering, in particular to a steel-concrete composite frame and a construction method connected by cross-through bolts. Background technique [0002] The steel-concrete composite structure makes full use of the stress characteristics of steel and concrete, so it has the advantages of good mechanical properties and convenient construction. Commonly used steel-concrete composite structures include steel-concrete composite beams, steel concrete, steel-filled concrete, and steel-reinforced concrete. Concrete-filled steel tube composite columns are formed by wrapping a layer of reinforced concrete on the basis of traditional concrete-filled steel tube columns. The inner steel pipe column and the outer concrete can be circular, square or other cross-section types. This type of component has the characteristics of high bearing capacity and good fire performance, and is suitable for ...

AI Technical Summary

Problems solved by technology

The traditional frame generally uses outer ring plate and inner diaphragm joints, which are connected with steel beams by welding, which requires a lot of welding workload

In addition, the setting of the outer ring plate and the inner partition will affect the pouring of concrete inside and outside the pipe, making the construction difficult and slow

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