Connection method for ultrahigh-rise core tube beam and vertical structure

Abstract

The invention discloses a connection method for an ultrahigh-rise core tube beam and a vertical structure. The connection method comprises the following steps: firstly, constructing a core tube shearwall structure by adopting a climbing form system; respectively setting the left and right end surfaces of embedded threaded sleeves as internal connection ends and external exposure ends; enabling the internal connection ends of the embedded threaded sleeves to all penetrate through embedded steel plates and be connected with embedded part anchoring steel bars; and after the wall is formed by pouring and reaches specified strength, constructing beam steel bars; installing the beam steel bars. According to the connection method, by cooperative use of the embedded part anchoring steel bars, theembedded steel plates and the embedded threaded sleeves, positions of the beam steel bars in a concrete pouring process can be kept unchanged, convenience is provided for connection of the beam steelbars in the later stage, and accurate positions of the beam steel bars are guaranteed; furthermore, the construction quality can be well guaranteed; and to construct a horizontal beam structure of acore tube of an ultrahigh-rise building, polystyrene boards are directly removed, and no chiseling for a concrete structure is needed, so that the construction intensity is reduced, and straight and smooth lines at concrete joints of the horizontal beam structure and the vertical structure are guaranteed.

Description

technical field [0001] The invention relates to the technical field of building construction, in particular to a method for connecting a super high-rise core tube beam and a vertical structure. Background technique [0002] With the rapid development of the national economy, my country's construction industry has produced unprecedented innovation and vitality, resulting in more and more super high-rise buildings, and many super high-rise buildings adopt the form of steel structure frame and concrete core tube structure. In conventional construction applications, the core tube and the outer frame of this structural form are constructed in a three-dimensional intersection, and the vertical structure of the core tube is firstly constructed, and then the horizontal structure is constructed. Due to the staggered construction of the vertical structure and the horizontal structure of the core tube, and the climbing formwork system is often used in the core tube, it is bound to caus...

AI Technical Summary

Problems solved by technology

Due to the staggered construction of the vertical structure and the horizontal structure of the core tube, and the climbing formwork system is often used in the core tube, it is bound to cause the connection problem of the horizontal structure and the vertical core tube structure reinforcement

One of the traditional pre-embedding methods of beam reinforcement is to directly pre-embed the beam reinforcement in the relevant parts. This method will make it difficult to dig in the later stage, time-consuming and labor-intensive, and it is easy to cause the deviation of the beam reinforcement during the concrete pouring process, resulting in the horizontal structure construction in the later stage. It is difficult to connect steel bars; another construction method is to reserve the wall according to the anchorage length of steel bars required by the code. Usually, the pre-embedded steel bars are bent and embedded in the protective layer of the steel bars

The filling material used for the protective layer is polystyrene foam board. This method is well suited to the characteristics of climbing formwork construction, but it is still easy to cause the deviation of the steel bars during the concrete pouring process, especially for the steel bars of the beams, resulting in the reinforcement of the later beam construction. difficult to connect

Images