Reverse construction type one-column one-pile construction method and structure for reserving column joint stirrup

Abstract

The invention relates to a reverse construction type one-column one-pile construction method and structure for reserving a column joint stirrup, and belongs to the technical field of building engineering. The construction method is characterized in that all the column stirrups, required by a structural column, at all layers sleeve the four sides of the structural column in an overlapping manner during constructing the column stirrups in an one-column one-pile project; then reserved stirrups at a current excavating layer are fixed to joints of beams and slabs; the stirrups are reserved for thecurrent excavating layer while downwards excavating each layer; the rest stirrups are arranged to the bottom part of the structural column, namely, the quantity of the stirrups overlapped on the structural column decreases as the construction downwards goes on; the abovementioned operations are repeated until all column stirrups are constructed. According to the structure, the column stirrups of the current excavating layer are fixedly bound to the beam and slab joints in the current excavating layer; the column stirrups of the rest layers sleeve the bottom part of the structural column undera construction area of the current excavating layer in an overlapping manner; and beam stirrups are arranged around the periphery of a main beam of a structural column at a beam and column joint.

Description

technical field [0001] The invention relates to the technical field of construction engineering, in particular to a construction method and structure for reserving stirrups at nodes of one column and one pile column by the reverse method. Background technique [0002] In recent years, people pay more and more attention to the development and utilization of urban underground space. As the construction environment becomes more and more complex, the construction difficulty is also increasing. At present, in the construction of underground passages, urban subway stations, underground parking lots and other projects under existing facilities such as urban roads, railways, airports, and landscape green spaces, the open-cut method, reverse method, shield method, pipe jacking method and pipe-jacking method are generally used. Curtain method, etc. for construction. In the construction phase of the upside-down method, the key point of the structural construction at the position of on...

AI Technical Summary

Problems solved by technology

[0004] The object of the present invention is to provide a construction method and structure for reserved stirrups at the joints of one column and one pile column by the reverse method, which is used to solve the cumbersome construction of the steel bar binding at the beam-column joint position in the existing reverse method stage, which takes a long time and is difficult to bind Big, unreliable quality issues

Images