Prefabricated concrete frame structure and its preparation method

Abstract

The invention discloses a prefabricated concrete frame structure which comprises prefabricated columns and prefabricated beams. Each prefabricated column is connected with one end of the corresponding prefabricated beam, a node area is formed at a joint of each prefabricated column and the corresponding prefabricated beam, each prefabricated beam is divided into an upper-layer column body and a lower-layer column body by the corresponding node area, each upper-layer column body and the corresponding lower-layer column body are connected through longitudinal reinforcing steel embedded in the prefabricated column in the corresponding node area, and column body longitudinal rebars are embedded in each prefabricated column and are continuous in the corresponding node area; beam end reinforcing steel is embedded at one end, connected with the corresponding prefabricated column, of each prefabricated beam, and the longitudinal reinforcing steel and the beam end reinforcing steel are connected through bolts. The invention further discloses a manufacturing method of the prefabricated concrete frame structure. Nodes of the prefabricated concrete frame structure are equivalent to cast-in-place concrete frame nodes in anti-seismic performance and energy dissipating capacity, anti-seismic concept design of 'strong nodes and weak components', 'strong shear capacity and weak bending capacity' and 'strong columns and weak beams' is realized, and construction process and difficulty can be reduced.

Description

technical field [0001] The invention relates to the technical field of construction engineering, in particular to a prefabricated assembled concrete frame structure and a preparation method of the prefabricated assembled concrete frame structure. Background technique [0002] With the development of the construction industry, construction industrialization has become the main development direction. In order to implement the medium and long-term strategic development, better promote the integration of power grid infrastructure, promote the construction of green power grids, and give full play to the social demonstration role in energy saving, emission reduction, green environmental protection, etc., China Southern Power Grid is actively promoting the industrialization of buildings, that is, prefabricated buildings in grid applications. For prefabricated buildings, prefabricated concrete frame structures are the most common and most suitable for substation buildings. [0003...

AI Technical Summary

Problems solved by technology

[0003] At present, most of the prefabricated concrete frame structures at home and abroad are the longitudinal reinforcement of the upper and lower columns of the prefabricated columns are disconnected at the joints and connected by grouting sleeves. The poor seismic performance of the joints has become a shortcoming of the prefabricated concrete frame structure. At the same time, the construction process is cumbersome and complicated, which seriously affects the promotion of the prefabricated concrete frame structure.

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