CN110145117A - Reinforcement structure of super-long and super-thick core tube formwork - Google Patents

Abstract

The invention discloses a reinforcement structure of an ultra-long and ultra-thick core tube formwork, which comprises side formworks (2) located on both sides of a shear wall (1), and the side formworks on both sides of the shear wall are connected to each other through tension screws (3) The steel pipe buckles (4) on the outside of the side formwork are connected, and nuts (5) are provided at both ends of the pull screw rods. By tightening the nuts, a pair of parallel steel pipes (6) are pressed on the back flute (7) on the outside of the side formwork; A set of tie bars (8) are provided in the length direction of the force wall, and the two ends of the tie bars are welded to the connecting screw (9), and the connecting screw runs through the end formwork (10) at both ends of the shear wall to connect with the steel pipe buckle on the outside of the end formwork. A nut is screwed on the external thread of the screw rod, and a pair of parallel steel pipes are pressed on the back corrugation outside the end formwork by tightening the nuts. The invention solves the problem that the length of the common tensioning screw cannot meet the lateral pressure of concrete pouring of the formwork at the end of the shear wall of the super-long and super-thick core tube.

Description

Reinforcement structure of super-long and super-thick core tube formwork

technical field

The invention relates to a reinforcement structure of an ultra-long and ultra-thick core tube formwork, which belongs to the technical field of building construction.

Background technique

With the development of society and the continuous progress of the construction industry, more and more high-rise super high-rises and viaducts are under construction in the construction industry. In super high-rise buildings, in order to meet the different use functions and flexible use space of the building, a core tube with a frame structure is usually designed. With the emergence of more and more ultra-thick, ultra-long, ultra-high and large-volume concrete shear walls in the core tube, the requirements for the precision of component sizes in the construction process have been continuously strengthened. The structure and construction method of the existing shear wall formwork cannot meet the precise control of the size of the ultra-long and ultra-thick core tube shear wall, and the phenomenon of mold expansion is easy to occur, resulting in waste of materials and manpower, which is not in line with green construction and sustainable development. concept requirements.

Contents of the invention

The object of the present invention is to provide a reinforcement structure of an ultra-long and ultra-thick core tube formwork. According to the thickness of the shear wall, a reinforced tie rod is added in the length direction of the shear wall to meet the requirements of concrete in the shear wall during pouring. The lateral pressure on the formwork prevents mold expansion from occurring, thereby overcoming the deficiencies of the prior art.

To achieve the above object, the present invention adopts the following technical solutions:

The reinforcement structure of an ultra-long and ultra-thick core tube formwork of the present invention includes side formworks located on both sides of the shear wall, the side formworks on both sides of the shear wall are connected to the steel pipe buckles on the outside of the side formwork through the tensioning screw, and the tensioning Nuts are provided at both ends of the screw, and a pair of parallel steel pipes are pressed on the back corrugation outside the side formwork by tightening the nuts; a set of tie bars are arranged along the length direction of the shear wall, and the two ends of the tie bars are welded to the connecting screw, and connected The screw rod runs through the end formwork at both ends of the shear wall and is connected with the steel pipe buckle outside the end formwork. A nut is screwed on the external thread of the connecting screw rod, and a pair of parallel steel pipes are pressed on the back corrugation outside the end formwork by tightening the nut.

In the aforementioned structure, the two ends of the long steel bar are overlapped and welded with the connecting screw, and the overlapping length is not less than 100 mm; the connection is connected by double-sided welding.

In the aforementioned structure, the length of the connecting screw is not less than the sum of the thickness of the end formwork, back corrugation and steel pipe buckle and the diameter of the parallel steel pipe.

In the aforementioned structure, the diameter of the tie reinforcement is not less than 16mm.

In the foregoing structure, the nut is a cast steel nut.

Due to the adoption of the above-mentioned technical scheme, the present invention solves the problem that the length of the common pull screw cannot meet the lateral pressure of the super-long and super-thick core tube shear wall end formwork concrete pouring. The present invention is firmly fixed and has high reliability; The process and the vibration compaction process will not cause mold expansion, and the invention can effectively avoid the waste of concrete and manpower and material resources caused by manual processing.

Description of drawings

Fig. 1 is a structural schematic diagram of the present invention.

The marks in the figure are: 1-shear wall, 2-side formwork, 3-tie screw, 4-steel pipe buckle, 5-nut, 6-parallel steel pipe, 7-back corrugated, 8-tie reinforcement, 9-connection Screw, 10-end template.

Detailed ways

The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

A reinforcement structure of an ultra-long and ultra-thick core tube formwork of the present invention, as shown in FIG. It is connected with the steel pipe buckle 4 on the outside of the side formwork 2, and nuts 5 are provided at both ends of the pull screw 3. By tightening the nuts 5, a pair of parallel steel pipes 6 are pressed on the back flute 7 on the outside of the side formwork 2; along the shear wall 1 A group of tie bars 8 are provided in the length direction, and the two ends of the tie bars 8 are welded to the connecting screw 9, and the connecting screw 9 runs through the end formwork 10 at both ends of the shear wall 1 to connect with the steel pipe buckle 4 on the outside of the end formwork 10, and the connecting screw 9 A nut 5 is screwed on the external thread, and a pair of parallel steel pipes 6 are pressed on the back flute 7 outside the end template 10 by tightening the nut 5 . The two ends of the tie bars 8 are overlapped and welded with the connecting screw 9, and the overlapping length is not less than 100 mm; they are connected by double-sided welding. The length of the connecting screw rod 9 is not less than the sum of the thickness of the end template 10, the back flute 7 and the steel pipe buckle 4 and the diameter of the parallel steel pipe 6. The diameter of tie bar 8 is not less than 16mm. Nut 5 is a cast steel nut.

Example

The reinforcement structure of the ultra-long and ultra-thick core tube formwork includes nuts 5, connecting screws 9, and tie bars 8. The length of tie bars 8 is selected according to the mass concrete structure size required by the construction drawings. The diameter of tie bar 8 is not less than 16mm. The tie bars 8 and the connecting screw 9 are connected by overlapping welding, and a double-sided welding method is adopted during welding to ensure welding reliability. The nut 5 adopts a cast steel nut and the connecting screw rod 9 at the end to be screwed together as the fastener of the parallel steel pipe 6 .

Claims (5)

1. A reinforced structure of an ultra-long and ultra-thick core tube formwork, including side formwork (2) located on both sides of the shear wall (1), and the side formwork (2) on both sides of the shear wall (1) via tension screws (3) Connect with the steel pipe buckle (4) on the outside of the side template (2), and nuts (5) are provided at both ends of the pull screw (3), and a pair of parallel steel pipes (6) are pressed on the side by tightening the nuts (5). On the back flute (7) on the outside of the template (2); it is characterized in that: a group of tie bars (8) are arranged along the length direction of the shear wall (1), and the two ends of the tie bars (8) are connected with the connecting screw (9 ) welding, the connecting screw (9) runs through the end template (10) at both ends of the shear wall (1) and connects with the steel pipe buckle (4) outside the end template (10), and the external thread of the connecting screw (9) is screwed with a nut ( 5), by tightening the nuts (5), press a pair of parallel steel pipes (6) on the back flute (7) outside the end template (10). 2. The reinforcement structure of the ultra-long and ultra-thick core tube formwork according to claim 1, characterized in that: the two ends of the tie bars (8) are overlapped and welded with the connecting screw (9), and the overlapping length is not less than 100mm; Surface welding connection. 3. The reinforcement structure of the ultra-long and ultra-thick core tube formwork according to claim 1, characterized in that: the length of the connecting screw (9) is not less than the end formwork (10), the back corrugation (7) and the steel pipe buckle (4) The sum of the thickness and the diameter of the parallel steel pipe (6). 4. The reinforcement structure of the ultra-long and ultra-thick core tube formwork according to claim 1, characterized in that: the diameter of the tie bars (8) is not less than 16mm. 5. The reinforcement structure of the ultra-long and ultra-thick core tube formwork according to claim 1, characterized in that: the nuts (5) are cast steel nuts.