Fabricated seismic reinforcement and reconstruction structure of existing building and reconstruction construction method

Abstract

The invention discloses a fabricated seismic reinforcement and reconstruction structure of an existing building and a reconstruction construction method, and belongs to the technical field of seismicreinforcement and energy-saving reconstruction of existing buildings. The fabricated seismic reinforcement and reconstruction structure comprises bridge cutoff planted bar sets distributed on concretecolumns and floors in the existing building, reinforced load-bearing steel bars, outer attached stand columns and outer attached floors, wherein the reinforced load-bearing steel bars and bridge cutoff planted bars are bound on the outer sides of the concrete columns and the floors of the existing building to form an outer attached bar net, and the outer attached stand columns and the outer attached floors are formed on the outer attached bar net in a pouring manner. The fabricated seismic reinforcement and reconstruction structure further comprises an internal insulation board, a self load-bearing lightweight aggregate concrete insulation board and efficient insulation boards attached to the outer surfaces of the outer attached stand columns and the outer attached floors, wherein the internal insulation board and the self load-bearing lightweight aggregate concrete insulation board are sequentially located on the outer surface of a wall of the existing building from inside to outside. Through the improvement to the seismic reinforcement structure and the construction method, the problems that the existing building is low in seismic fortification criterion and high in heating andrefrigerating energy consumption are solved, and the problems that the service life of building exterior insulation is the same as that of the building, and a building heat bridge is cut off are alsosolved.

Description

technical field [0001] The invention belongs to the technical field of anti-seismic reinforcement and energy-saving transformation of existing buildings, and in particular relates to an assembled anti-seismic reinforcement and transformation structure of an existing building and a transformation construction method. Background technique [0002] With the rapid development of the economy and the improvement of people's living standards, the existing building area in my country has exceeded 60 billion square meters, many of which have structural bearing capacity due to changes in building functions, improper design and construction, and approaching the design service life. , The structural strength and stiffness cannot meet the requirements of the current norms and standards. It is necessary to carry out seismic reinforcement of existing buildings to improve building safety and reliability. On the other hand, my country's building energy consumption accounts for about 21% of th...

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Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide a prefabricated anti-seismic reinforcement structure and a reconstruction construction method of an existing building. Through the improvement of the anti-seismic reinforcement structure and construction method, it can solve the problem of low anti-seismic fortification standards and energy consumption for heating and cooling of existing buildings. High-level problems, but also solve the problems of building external insulation and the same life of the building, blocking building thermal bridges, etc.

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