Construction method of super high-rise building main body structure

Abstract

The invention provides a construction method of a super high-rise building main body structure. The construction method comprises the following steps: constructing a main structure above a first floor according to a structure that a core tube steel column is earlier than a core tube shear wall by one to three floors, the core tube shear wall is earlier than a steel structure frame outside a tube by five to eight floors, and the steel structure frame outside the tube is earlier than a steel bar truss floor support plate by two to three floors. Therefore, deformation of different sections can be dynamically monitored in the construction process, deformation is corrected and supplemented when a next joint is constructed, the stability and safety of the whole structure are guaranteed, and the construction period of a whole building is shortened through segmented and partitioned construction. Meanwhile, all the parts of a waist truss are pre-assembled in an inserted connection mode and then fixedly connected, on one hand, the assembling convenience can be improved, the working efficiency can be improved, on the other hand, subsequent further fixed connection is facilitated, and the final connecting effect and strength are guaranteed.

Description

technical field [0001] The invention belongs to the technical field of building construction, and in particular relates to a construction method for a main structure of a super high-rise building. Background technique [0002] During the construction process of super high-rise buildings, the foundation is mostly mass concrete. During the mass concrete pouring process, due to the influence of hydration heat and internal and external temperature differences, temperature stress is formed, and harmful cracks often appear, and even lead to obvious cracking of mass concrete. , seriously affect the structural safety and functionality, and affect the overall performance. At present, pre-embedded cooling water pipes are a common and effective method, but there is no real-time and effective monitoring of the internal concrete temperature, and it is also impossible to perform single-point control of the cooling water flow into each temperature control pipe, making it difficult to perfo...

AI Technical Summary

Problems solved by technology

However, at present, there is no uniform and effective water retaining means for water storage and maintenance. Different water retaining structures such as cofferdams are only used for different working conditions. There are strict requirements on the construction period

[0004] During the construction of the main body of super high-rise buildings on the ground, due to the continuous increase of various loads, the elastic compression of the vertical components occurs, but the materials of the core tube and the outer frame of the steel frame are different, which will inevitably lead to additional internal forces due to uneven compression deformation; Different, resulting in uneven settlement on both sides of the core tube and the steel frame outer frame; and the concrete will shrink and creep to a certain extent over time; the superposition of these factors is likely to induce changes in the overall building height and structural size, and positioning deviation Structural deformation problems such as , floor tilting, etc., thus affecting the safety of the structure

Settlement and deformation are continuous processes. If a section of the main structure is completed and left to stand for a certain period of time before the construction of the superstructure will seriously affect the construction period

[0005] However, the outer frame of the steel frame is welded with different section steels, and the positioning of each component is difficult during the assembly process, and deviations are prone to occur, and the corresponding limit position is lacking during the welding process, which further increases the probability of deviations

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