Fabricated prestressed concrete large-span frame system and construction method thereof

Abstract

The invention relates to a fabricated prestressed concrete large-span frame system and a construction method thereof. The fabricated prestressed concrete large-span frame system comprises a foundation, a precast column of reinforced concrete, a laminated beam of the reinforced concrete, a floor slab and an externally-hung precast wall plate. The laminated beam comprises a beam precast part and a beam laminated layer. A beam prestressed hole channel is formed in the beam precast part, the beam prestressed hole channel is formed in the lower part of a plate body, and a column prestressed hole channel is formed in the precast column. The column prestressed hole channel is aligned with the beam prestressed hole channel. Steel bar bundles are arranged in the column prestresse hole channel and the beam prestressed hole channel in a penetrating mode. Combined steel bars of the beam laminated layer are anchored into the position between the precast column and the beam laminated layer for anchored connecting. The combined steel bars comprise energy consumption steel bars and shear resisting steel bars. The energy consumption steel bars are provided with unbonded sections. The fabricated prestressed concrete large-span frame system can further be used by combining lateral force resisting components such as a lateral support and a shear wall, and suitable for multi-high-rise public buildings such as schools, office buildings, apartments and hospitals.

Description

technical field [0001] The invention relates to a building structure system, in particular to an assembled prestressed large-span concrete frame system and a construction method thereof. Background technique [0002] At present, the domestic prefabricated concrete frame structure system mainly adopts the prefabricated integral structural system cast in the beam-column joint area. The dry connection of beam-column joints is limited to the setting of corbels supporting prefabricated beams on prefabricated columns. The two are usually welded by steel plate embedded parts, and are mainly used in industrial plant structures. The United States and Japan have prefabricated prestressed frame dry connection nodes without corbels that are used in civil buildings. However, the existing system mainly has the following problems, resulting in a small application range: [0003] 1. In the beam-to-column connection node area, energy-dissipating steel bars are installed on the upper and lo...

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Problems solved by technology

[0009] The purpose of the present invention is to provide a prefabricated prestressed concrete long-span frame system and its construction method, to solve the problem of complex prefabricated concrete joint connection structure, low construction efficiency of prefabricated assembled concrete frame and frame shear wall structure , Seismic performance reduces the technical problem of higher structural repair costs after earthquakes

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