Steel pipe-reinforced concrete laminated framework structural system

Abstract

The invention discloses a steel pipe-reinforced concrete laminated framework structural system, which belongs to the field of structural engineering in civil engineering. The steel pipe-reinforced concrete laminated framework structural system is characterized in that laminated sections formed by wrapping reinforced concrete outside hollow steep pipes are adopted for beams and columns of the system. The hollow steel pipes are adopted inside, and the sections are unfolded, so that high rigidity is realized, the dead weight of the structure is reduced effectively while the using amount of concrete is reduced, and the acting force in earthquakes is reduced; and meanwhile, good fire-proof and corrosion-resistant protection is provided for the steel pipes by using the wrapped reinforced concrete. In node regions of the system, steel pipes in columns are connected with each other, and steel pipes in beams are welded on the steel pipes in columns through reinforced ring plates. Column longitudinal bars are arranged in a through way; a part of beam longitudinal bars go deep into nodes after bypassing the steel pipes in columns, and a part of beam longitudinal bars are welded on the steel pipes in columns; and beam and column stirrups are thickened appropriately in the node regions. The steel pipe-reinforced concrete laminated framework structural system is applied to the structural forms of frameworks, framework-shear force walls and the like, and is suitable to be taken as a main body structural system of large-sized high-rise, super-high-rise or huge structures.

Description

technical field [0001] The invention belongs to the field of structural engineering in civil engineering, in particular to a steel pipe-reinforced concrete composite frame structure system. Background technique [0002] In recent years, with the rapid development of my country's economy and the continuous improvement of building structure technology, the demand for high-rise, super high-rise buildings and landmark buildings in various places has continued to increase, making the construction of giant structures unprecedentedly developed. At present, the main types of megastructures include reinforced concrete structures, pure steel structures and steel-concrete composite structures. Among them, composite structures such as steel-filled steel pipe concrete and steel-reinforced concrete, because they can give full play to the respective advantages of steel and concrete, have the advantages of high strength, high rigidity, superior performance, and good economic benefits, and a...

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Problems solved by technology

[0004] The purpose of the present invention is to solve the problems of large structure, poor seismic performance and poor fire resistance described in the background technology, and to provide a steel pipe with open cross-section, high rigidity, light weight, superior seismic resistance, good fire resistance and corrosion resistance -Reinforced concrete laminated frame structure system

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