Concrete beam and section steel concrete column anchoring structure and construction method

Abstract

The invention relates to an anchorage structure between a concrete beam and a steel concrete column, which comprises a concrete column in which section steel is buried, concrete beams are connected between the concrete columns, and a plurality of upper through steel bars and lower longitudinal bars are buried in the concrete beam, wherein the lower A hook is arranged at the end of the longitudinal bar, and the hook is buried in the concrete column, and the upper through steel bar runs through the concrete column, and the height of the upper end of the section steel is lower than the height of the upper through steel bar. Adopting the above-mentioned technical scheme, setting the lower longitudinal bars on both sides of the concrete column without penetrating section steel has the same stress as connecting the lower longitudinal bars through the section steel, and the section steel without opening can reduce the weak points of the section steel under stress. By installing hooks embedded in the concrete column at the end of the lower longitudinal reinforcement, the negative moment resistance capacity of both ends of the concrete beam is improved, and the positive moment resistance of the middle part of the concrete beam is improved by cooperating with the upper through steel bar penetrating through the concrete column ability.

Description

technical field [0001] The invention relates to the technical field of building construction, in particular to a concrete beam and steel concrete column anchorage structure and a construction method. Background technique [0002] At present, steel structures have been widely used in the field of super high-rise buildings and large-span space structures. Therefore, steel structures and concrete are mixed in many high-rise buildings, that is, the outer sides of steel columns are wrapped with concrete, which is what we usually call rigid steel structures. Since the concrete column is provided with profiled steel, the way of opening holes in the profiled steel is generally used to arrange the longitudinal reinforcement of the beam throughout the length, so as to improve the tensile performance of the beam. [0003] However, due to the way of opening holes in the section steel, the section steel forms a stress concentration area at the opening position, which reduces the compress...

AI Technical Summary

Problems solved by technology

When the cohesive force is insufficient, there will be relative slippage between the steel bar and the concrete, and eventually bond splitting failure will occur, and there is room for improvement

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