RU2233953C2 - Method for erecting building frame without girders by means of floor lifting - Google Patents

Abstract

FIELD: building engineering, particularly erecting frame-type buildings.

SUBSTANCE: method involves building foundation, building columns having height exceeding story height; installing jacks with drawbars on columns; concreting floor in each cell on upper foundation level; lifting floor by jacks up to the second story level; fixing floor on temporary assembling tables; passing reinforcement through columns in two perpendicular directions and grouting joints between columns and floor; tightening reinforcement with transmitting drawing power to building perimeter; grouting floor seams including reinforcement; building columns up to next story level; mounting jacks on columns; building floor of the second story on prestressed floor of previous story; carrying out lifting and mounting operations at designed story level and erecting building frame in story-by-story mode.

EFFECT: reduced time consumption for frame erection, decreased cost due to eliminating use of lifting apparatuses with high carrying capacities and due to increasing frame cell dimensions.

2 cl, 2 dwg

Description

The invention relates to construction and is intended for the construction of frame buildings by the method of lifting floors.

A known method of erecting a frame building, including the construction of a foundation, installation of columns, the manufacture of a package of floor slabs to a given height by lifts, followed by their installation at the height of each floor / 1 /.

Closest to the proposed one is a method of erecting a bezelless building frame using the method of raising floors and floors, including building a foundation, installing in the corners of the frame of paired inventory racks to the lifting height, on which mechanisms with rods are mounted, concreting at the zero mark of the package of floor slabs with cross gaps, installation columns for each floor, the passage of prestressing reinforcement through the columns in mutually perpendicular directions, monolithic joints and tension of the reinforcement followed by the concrete pulling force along the perimeter of the building and monolithing the joints between the plates, the joint lifting of the ceiling with columns to the design height / 2 /.

The disadvantages of the known methods are the complexity of the simultaneous installation of columns and ceilings and their joint lifting, the need to install additional equipment and auxiliary columns, providing the ability to lift loads of significant weight to a great height.

The technical task is to simplify the construction of the frame, reduce installation time, reduce costs by eliminating the lifting mechanisms of large lifting capacity and the possibility of increasing the size of the cell frame.

The problem is solved in such a way that in the method of erecting a bezelless frame of the building by lifting floors, including building a foundation, installing a mechanism with rods to the lifting height, concreting the floors, lifting them floor by floor, installing columns and ceilings, letting the fittings through the columns in mutually perpendicular directions, monolithic joints and tension of reinforcement followed by the transfer of tensile forces to concrete along the perimeter of the building and monolithic joints with reinforcement between the plates, according to the invention columns are erected on the foundation of the building frame to a level above the height of the floor, on which jacks with rods are installed, then the ceiling is concreted in each cell at the upper level of the foundation, lifted by jacks with rods to the level of the second floor and mounted with a passage through the reinforcement columns in two instead of perpendicular directions and monolithic joints, followed by tensioning reinforcement and monolithic joints with reinforcement between the floors, after which the columns are increased to the height of the next floor, the time here to these jacks and concreted overlap the next floor, producing lifting and installation at floor height of the project, followed by the layerwise construction of the building shell.

The proposed method differs from the known one in that the columns are erected on the foundation of the building frame to a level above the floor height, on which jacks with rods are installed, then the ceiling is concreted in each cell at the upper level of the foundation, lifted by jacks with rods to the level of the second floor and mounted with the passage through the reinforcement columns in two mutually perpendicular directions and monolithic joints, followed by tensioning the reinforcement and monolithic joints with reinforcement between the ceilings, followed by us increasing the height of the next floor, reinstall them jacks and concreted overlap the next floor, producing lifting and installation at floor height of the project, followed by the layerwise construction of the building shell.

The proposed sequence of operations eliminates the need for lifting a package of large-sized floor slabs and erecting columns to the entire height of the building, as well as erecting additional supports and a stiffness core. In addition, the proposed method makes it possible to erect a frame with an increased size of the cell of the frame during the floor-by-floor erection of the floor over the entire cell.

The method is illustrated in the drawing, in which figure 1 shows a diagram of the lifting of the overlap of the second floor, figure 2 is a diagram of the lifting of the overlap of the third floor.

The method is as follows.

The foundation of 1 building frame is being erected. Prefabricated columns are mounted or concrete columns 2 are mounted along the perimeter of the carcass cell to a height higher than the design height of the first level floor and jacks 3 with rods 4 are installed on the columns. The height of the columns is determined by the possibility of installing jacks. At the level of the top of the foundation 1, the overlap 5 of the first level is concreted. After concrete reaches 70% of its design strength, the floor is lifted by jacks 3 with jack 3 to the level of the second floor and fixed on temporary mounting tables, reinforcement 6 is passed through the channels in the columns in perpendicular directions, and the joints between the columns and the floor are monitored. Then the columns are erected and the floors of the second floor in adjacent cells are concreted. After that, the reinforcement is tensioned with the transmission of the tension force along the perimeter of the building at the level of the second floor and the monolithic joints with prestressed reinforcement between the ceilings. Then, in each cell of the building, columns 1 are sequentially increased to the height of the next floor and the jacks are reset to the next level. On the floor 5 of the second floor, the floor 7 of the third floor is concreted and maintained until the set strength is set. Then it is also lifted by jacks on rods to the level of the next fourth floor and mounted in the same way. Thus, the building frame is erected at the design height.

Sources of information

l. SU Author's certificate No. 821671, cl. E 04 G 21/14, 1979

2. SU Author's certificate No. 981547, cl. E 04 G 21/14, BI No. 46, 1982 (prototype).

Claims (1)

A method of erecting a bezel-less frame of a building using the method of raising floors, including building a foundation, installing a mechanism with rods to the lifting height, concreting floors, floor-by-floor lifting them, installing columns and ceilings, passing reinforcement through columns in mutually perpendicular directions, monoling joints and tensioning the valves with subsequent transmission tension forces on concrete around the perimeter of the building and monolithic joints with reinforcement between the plates, characterized in that first, on the foundation of the building frame is erected the columns to a level above the height of the floor, on which jacks with rods are installed, then on the upper level of the foundation in each cell, the ceiling is concreted, lifted by jacks with rods to the level of the second floor and fixed on temporary mounting tables, reinforcement is passed through the columns in two mutually perpendicular directions, monolith the joints between the columns and the ceiling, produce reinforcement tension and monopolize the joints with the reinforcement between the floors, after which the columns are raised to the height of the next floor and, the jacks are reinstalled on them and on the assembled prestressed floor, the next floor is concreted, the lifting and installation are carried out at the design height, followed by the floor construction of the building frame.

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