Assembled prestressed concrete frame system and construction method thereof

Abstract

The invention relates to an assembled prestressed concrete frame system and a construction method thereof. The system comprises a base, a reinforced concrete prefabricated column, a reinforced concrete laminated beam, a floor slab and an externally-hung prefabricated wall plate. The laminated beam comprises a beam prefabricated part and a beam laminated layer; the beam prefabricated part is provided with beam prestressed pore passages, and the beam prestressed pore passages are arranged at the lower part of the prefabricated beam; the prefabricated column is provided with column prestressed pore passages, the column prestressed pore passages align at the beam prestressed pore passages, two kinds of pore passages are internally provided with reinforcing steel bar bundles in a penetration manner, and the reinforcing steel bar bundles are composed of partial unbonded prestressed ribs and each comprise an unbonded section and a midspan bonded section; the prefabricated column is in anchoring connection with the beam laminated layer by combined reinforcing steel bars anchored in the beam laminated layer; the combined reinforcing steel bars comprise energy-consuming reinforcing steel bars and anti-shear reinforcing steel bars, and the energy-consuming reinforcing steel bars each have an unbonded section. The assembled prestressed concrete frame system can also be used with combination of lateral support, shear walls and other side force resistant components, and can be applicable to multi-high-layer public buildings, such as schools, office buildings, apartments, hospitals and the like.

Description

technical field [0001] The invention relates to a building structure system, in particular to an assembled prestressed 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 structure system cast in place in the beam-column joint area. The dry connection of beam-column joints is limited to setting the corbels on the prefabricated columns to support the prefabricated beams, and the two are usually welded by steel plate embedded parts, which are mainly used in industrial plant structures. The United States and Japan have prefabricated prestressed frame dry connection nodes without corbels used in civil buildings. However, the existing systems mainly have the following problems, resulting in a small scope of application: [0003] 1. In the beam-column connection node area, energy-consuming steel bars are installed on the upper and low...

AI Technical Summary

Problems solved by technology

[0009] The purpose of the present invention is to provide a prefabricated prestressed concrete 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, and earthquake resistance. Performance reduction Technical issues with high cost of structural repair after earthquakes

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