Method for mounting ultra-wide ultra-high reinforced concrete beam large-diameter steel bar

Abstract

The invention discloses a method for mounting an ultra-wide ultra-high reinforced concrete beam large-diameter steel bar. Work sections are divided in the height direction according to 1 / 3 beam height for sequential mounting, work sections are divided in the length direction according to the supply specified lengths of a longitudinal stress steel bar for sequential mounting, a peripheral closed stirrup is mounted firstly in the width direction, then an inner composite stirrup and lower longitudinal stress steel bar within the connecting range are sequentially mounted from one side; one side of the peripheral closed stirrup is divided into an upper L-shaped loop and a lower L-shaped loop at the 1 / 3 position of the beam height, and the upper loop and the lower loop are connected through a straight thread sleeve to form the closed stirrup; then when the first work section steel bar of the beam in the height direction is mounted, the inner composite steel bar and the lower longitudinal stress steel bar within the connecting range are sequentially mounted from the other side so that the problem about operation space caused by large-diameter steel bar carrying and binding in the beam can be solved.

Description

technical field [0001] The invention relates to the field of civil engineering construction, in particular to a method for installing large-diameter steel bars of super-wide and super-high reinforced concrete beams. Background technique [0002] The installation of large-diameter steel bars for ultra-wide and ultra-high reinforced concrete beams represented by transfer beams and underpinning beams has its own particularities, whether it is the processing and production of the steel bars themselves, the binding connection, or the reasonable deployment of the construction process; The super-wide and super-high reinforced concrete beam steel bar construction technology represented by underpinning beams and underpinning beams mainly focuses on solving the problems of steel concrete beam installation and joint handling in the construction of steel concrete beams, or on solving problems in the construction of prestressed concrete beams and corrugated pipes, The interspersed fit of...

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Problems solved by technology

[0002] The installation of large-diameter steel bars for ultra-wide and ultra-high reinforced concrete beams represented by transfer beams and underpinning beams has its own particularities, whether it is the processing and production of the steel bars themselves, the binding connection, or the reasonable deployment of the construction process; The super-wide and super-high reinforced concrete beam steel bar construction technology represented by underpinning beams and underpinning beams mainly focuses on solving the problems of steel concrete beam installation and joint handling in the construction of steel concrete beams, or on solving problems in the construction of prestressed concrete beams and corrugated pipes, The interspersed fit of prestressed tendons basically does not involve the installation method of how to form a reasonable construction sequence of large-diameter steel bars in super-wide and super-high reinforced concrete beams in plane and space; The diameter steel bars are heavy and difficult to bind, the beam is large and the working space inside the beam is narrow, the steel bars are dense and the number of layers is large, the steel skeleton is heavy and difficult to support, the binding is difficult and the construction requirements are high, and it is difficult to ensure that the steel bars are qualified and survive once; therefore, In order to solve the above problems, it is urgent to design a method to facilitate the installation of large-diameter steel bars

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