WO2024027029A1

WO2024027029A1 - Pouring device, and pouring method for steel reinforced concrete

Info

Publication number: WO2024027029A1
Application number: PCT/CN2022/128735
Authority: WO
Inventors: 吴昌根; 刘志强; 张守贵; 郑伟盛; 冯力强; 詹仲滋; 张凯; 熊震威; 张波
Original assignee: 中建科工集团有限公司
Priority date: 2022-08-03
Filing date: 2022-10-31
Publication date: 2024-02-08
Also published as: CN115370146A

Abstract

Disclosed in the present invention is a pouring device, comprising: a bottom plate, which is provided with a first through hole; a baffle plate, which is connected to the bottom plate in a sliding manner, wherein the baffle plate can slide relative to the bottom plate under driving, so as to close or open the first through hole; and a joint, which comprises a connecting portion and a butting portion, wherein the connecting portion is connected to a surface of the bottom plate, and the butting portion is used for being connected to a pump pipe. The pouring device disclosed in the present invention can effectively solve the segregation problem in a pouring process.

Description

Pouring device and method of pouring profiled steel concrete

Technical field

The invention relates to the technical field of engineering construction, and in particular to a pouring device and a pouring method of profiled steel concrete.

Background technique

Sectional steel concrete components include concrete, section steel, longitudinal steel bars and stirrups. Specifically, section steel is added to reinforced concrete beams, columns and other components, which is section steel concrete. Furthermore, adding section steel can effectively improve the load-bearing capacity of the component and reduce the axial compression ratio of the component.

In related technologies, high-rise building structures mostly use profiled steel concrete. Since the profiled steel structure, steel bars, and steel hoops are added longitudinally within the component, the profiled steel and steel bars within the entire component are extremely densely arranged, with narrow gaps, and the fluidity of the concrete during the pouring process is reduced. will be seriously affected.

When constructing steel concrete components using traditional concrete pouring methods, due to the dense arrangement of shaped steel and steel bars, the pump pipe cannot penetrate deep and is prone to segregation during the pouring process. At the same time, due to the dense arrangement of shaped steel and steel bars, the fluidity of the concrete is affected. As a result, the air in beam-column joints, steel flanges and lower parts of webs cannot be discharged, resulting in loose concrete filling, thus affecting the quality of high-rise building structures.

Contents of the invention

The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention proposes a pouring device that can effectively solve the segregation problem that occurs during the pouring process.

The invention also proposes a method for pouring steel concrete with the above-mentioned pouring device.

The pouring device according to the first embodiment of the present invention includes: a bottom plate provided with a first through hole; a baffle slidably connected to the bottom plate, and the baffle can be driven to slide relative to the bottom plate to Close or open the first through hole; the joint includes a connecting part and a butt part, the connection part is connected to the surface of the bottom plate, and the butt part is used to connect the pump tube.

The pouring device according to the embodiment of the present invention at least has the following beneficial effects: after the pouring device connects the steel concrete components, the docking part connects the pump pipe, and the baffle is operated to slide to open the first through hole. In this way, the concrete can pass through the first through hole. After entering, after the pouring is completed, the baffle is operated to slide to close the first through hole. In this way, the pouring device can effectively solve the segregation problem that occurs during the pouring process.

The pouring device according to some embodiments of the present invention further includes two vertical plates and a horizontal plate, the vertical plate has a first side and a second side, the first side is connected to the bottom plate, and the horizontal plate Both ends are respectively connected to one end of the two vertical plates, so that the two vertical plates, the horizontal plates and the bottom plate form a chute; wherein the baffle is provided in the chute.

According to the pouring device of some embodiments of the present invention, the baffle includes an operating part that can be driven to slide the baffle relative to the bottom plate.

According to the pouring device of some embodiments of the present invention, the operating part includes a circular ring.

According to the pouring device according to some embodiments of the present invention, the bottom plate, the vertical plate, the horizontal plate, the baffle, and the joint are made of steel.

According to the pouring device of some embodiments of the present invention, the first surface is welded to the bottom plate, the horizontal plate is welded to the vertical plate, and the connecting portion is welded to the vertical plate.

According to the pouring device of some embodiments of the present invention, the docking part includes a steel pipe, the connecting part includes a steel plate, the steel plate is provided with a second through hole, and the steel pipe is connected to the second through hole.

According to the pouring device of some embodiments of the present invention, the steel pipe is welded to the steel plate.

The pouring method of profiled steel concrete according to the second embodiment of the present invention includes the steps:

A pouring device is installed at the bottom of the profiled steel concrete member, wherein the pouring device includes a base plate provided with a first through hole; a baffle slidably connected to the base plate, and the baffle can be driven to slide relative to the base plate, To close or open the first through hole; the joint includes a connecting portion and a butt portion, the connecting portion is connected to the surface of the bottom plate, and the butt portion is used to connect the pump tube;

Use a pump tube to connect the docking part and open the first through hole;

Transport concrete into the first through hole;

After the pouring is completed, the first through hole is closed.

The method for pouring profiled steel concrete according to the embodiment of the present invention has at least the following beneficial effects: by installing the pouring device at the bottom of the profiled steel concrete component, concrete can be poured from the bottom of the profiled steel concrete component from bottom to top, thereby effectively solving the problem Segregation problems that occur during pouring.

The method for pouring shaped steel concrete according to some embodiments of the present invention further includes the step of pouring concrete in sections, dividing the shaped steel concrete component into multiple sections, and installing the pouring device at the bottom of the multiple sections of shaped steel concrete component.

Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.

Description of the drawings

The present invention will be further described below in conjunction with the accompanying drawings and examples, wherein:

Figure 1 is a schematic diagram of a pouring device according to some embodiments of the present invention;

Figure 2 is a flow chart of a steel concrete pouring method according to some embodiments of the present invention;

Figure 3 is a schematic diagram of segmented pouring in the steel concrete pouring method according to some embodiments of the present invention.

Reference signs:

Steel concrete member 100, pouring device 200, bottom plate 210, first through hole 211, vertical plate 220, first surface 221, second surface 222, horizontal plate 230, chute 240, baffle 250, operating part 251, joint 260 , connecting part 261, and docking part 262.

Detailed ways

Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements with the same or similar functions. The embodiments described below with reference to the drawings are exemplary and are only used to explain the present invention and cannot be understood as limiting the present invention.

In the description of the present invention, it should be understood that orientation descriptions, such as up, down, front, back, left, right, etc., are based on the orientation or position relationships shown in the drawings and are only In order to facilitate the description of the present invention and simplify the description, it is not intended to indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore should not be construed as a limitation of the present invention.

In the description of the present invention, several means one or more, plural means two or more, greater than, less than, more than, etc. are understood to exclude the original number, and above, below, within, etc. are understood to include the original number. If there is a description of first and second, it is only for the purpose of distinguishing technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of indicated technical features or implicitly indicating the order of indicated technical features. relation.

In the description of the present invention, unless otherwise explicitly limited, words such as setting, installation, and connection should be understood in a broad sense. Those skilled in the art can reasonably determine the specific meaning of the above words in the present invention in combination with the specific content of the technical solution.

In the description of the present invention, reference to the terms "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples" is intended to be in conjunction with the description of the embodiment. or examples describe specific features, structures, materials, or characteristics that are included in at least one embodiment or example of the invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The shaped steel concrete component 100 includes concrete, shaped steel, longitudinal steel bars and stirrups. Specifically, adding shaped steel to reinforced concrete beams, columns and other components is called shaped steel concrete. Among them, the shaped steel concrete component 100 mentioned in this article is not Components when pouring concrete. Specifically, the profiled steel concrete component 100 in this article is poured with concrete after the pouring device 200 is connected. In this way, the profiled steel concrete component 100 is formed. Furthermore, after adding profiled steel, the bearing capacity of the component can be effectively improved. , reduce the axial compression ratio of the component.

In related technologies, generally, high-rise building structures mostly use profiled steel concrete. Since the profiled steel structure, steel bars and steel hoops are added longitudinally within the component, the profiled steel and steel bars within the entire component are extremely densely arranged with narrow gaps. During the pouring process of concrete, liquidity will be severely affected.

When constructing shaped steel concrete components 100, such as shaped steel concrete columns, using traditional concrete pouring methods, the pump pipe cannot penetrate deeply due to the dense arrangement of shaped steel and steel bars. Segregation is easily caused during the pouring process. At the same time, due to the dense arrangement of shaped steel and steel bars, , the fluidity of concrete is affected, and the air in places such as beam-column joints, steel flanges, and lower parts of webs cannot be discharged, resulting in loose concrete filling, thus affecting the quality of high-rise building structures.

Furthermore, concrete segregation is a phenomenon in which the cohesion between the components of the concrete mixture is insufficient to resist the sinking of the coarse aggregate, and the components of the concrete mixture separate from each other, resulting in uneven internal composition and structure. The cause of concrete segregation This is because in the process of free fall, because there are stones and cement slurry in the concrete, the volumes of the two are different. The stones fall first, and the cement slurry falls later. Furthermore, after the segregated concrete solidifies, multiple cavities will be formed in the building structure, which will significantly reduce the strength of the concrete, seriously affecting the load-bearing capacity of the concrete structure, destroying the safety performance of the structure, seriously causing rework, and causing huge economic losses. Therefore, the applicants of this application propose a pouring device 200.

Please refer to Figure 1. In some embodiments, a pouring device 200 for connecting steel concrete members 100 includes a bottom plate 210, a baffle 250 and a joint 260. The bottom plate 210 is provided with a first through hole 211; the baffle 250 slides with the bottom plate 210. connection, and the baffle 250 can be driven to slide relative to the base plate 210 to close or open the first through hole 211; the joint 260 includes a connecting portion 261 and a butt portion 262, the connecting portion 261 is connected to the surface of the base plate 210, and the butt portion 262 is to connect the pump tubing.

Specifically, because the pouring device 200 is connected to the bottom of the steel concrete member 100, workers can pour concrete from bottom to top with the help of the pouring device 200. The detailed process is as follows: after the pouring device 200 connects the shaped steel concrete component 100, the docking part 262 connects the pump pipe, and the operating baffle 250 slides to open the first through hole 211, so that concrete can enter the shaped steel concrete component from the first through hole 211 In 100, concrete is poured, and then, after the pouring is completed, in order to prevent the concrete from flowing out from the first through hole 211, the baffle 250 is operated to slide to close the first through hole 211. In this way, the pouring device 200 can effectively solve the problem during the pouring process. Segregation problems arise.

Among them, after pouring concrete, the pouring device 200 can become a part of the profiled steel concrete member 100, that is, the bottom plate 210 of the pouring device 200 acts as a "template" for the profiled steel concrete pouring. In this way, materials can be saved.

Please refer to Figure 1. In some embodiments, the pouring device 200 includes two vertical plates 220 and a horizontal plate 230. The vertical plate 220 has a first surface 221 and a second surface 222. The first surface 221 is connected to the bottom plate 210; the horizontal plate The two ends of 230 are respectively connected to one end of the two vertical plates 220, so that the two vertical plates 220, the horizontal plate 230 and the bottom plate 210 form a chute 240; the baffle 250 is arranged in the chute 240. For example, at the construction site, in order to facilitate the workers to manufacture the processing and pouring device 200, the vertical plate 220 and the horizontal plate 230 are selected to form the chute 240. Specifically, the baffle 250 slides relative to the chute 240 to open and close the third With a through hole 211, the pouring device 200 can effectively solve the segregation problem that occurs during the pouring process.

Further, please refer to FIG. 1 . In some embodiments, the baffle 250 includes an operating part 251 , and the operating part 251 can be driven to slide the baffle 250 relative to the base plate 210 . Further, the operation part 251 includes a circular ring.

For example, in order to facilitate the staff to slide the baffle 250 to close or open the first through hole 211, the operating part 251 of the baffle 250 can be a ring. In this way, the staff only need to move the ring to drive the baffle. 250 movement makes it convenient for workers to use the pouring device 200.

Further, please refer to FIG. 1 . In some embodiments, the bottom plate 210 , the vertical plate 220 , the horizontal plate 230 , the baffle 250 and the joint 260 are made of steel. For example, since the steel concrete member 100 includes concrete, steel, longitudinal steel bars and stirrups, when the bottom plate 210, the vertical plate 220, the horizontal plate 230, the baffle 250 and the joint 260 of the pouring device 200 are made of steel, the pouring device 200 will 200 can be installed at the bottom of the profiled steel concrete component 100 and directly become a part of the profiled steel concrete component 100, and because they are all made of steel, it will not affect the strength of the profiled steel concrete component 100 and affect the quality of high-rise buildings.

Further, please refer to FIG. 1 , in some embodiments, the first surface 221 is welded to the bottom plate 210 , the horizontal plate 230 is welded to the vertical plate 220 , and the connecting portion 261 is welded to the vertical plate 220 . For example, at the construction site, workers can easily find steel materials to manufacture the pouring device 200. Specifically, they can weld and connect various parts of the pouring device 200. Since the materials can be obtained locally, the pouring device 200 is simple to manufacture. It also saves a certain amount of time and improves staff efficiency.

Further, please refer to FIG. 1 . In some embodiments, the docking part 262 includes a steel pipe, the connecting part 261 includes a steel plate, the steel plate is provided with a second through hole, and the steel pipe is connected to the second through hole. For example, for convenience, the pump pipe can be connected to the docking portion 262, so the docking portion 262 can be a steel pipe. At the same time, the steel plate is provided with a second through hole corresponding to the aperture of the steel pipe. In this way, the pump pipe is directly connected to the steel pipe, and concrete can be poured.

Further, referring to FIG. 1 , in some embodiments, the diameter of the second through hole is equal to the diameter of the first through hole 211 . For example, in order to allow the concrete to pass through the steel pipe and the second through hole to reach the first through hole 211, and thereby perform concrete pouring, when the diameters of the second through hole and the first through hole 211 are equal, there will be no problem due to different hole diameters. , hindering the flow of concrete and affecting pouring.

Further, please refer to Figure 1. In some embodiments, the diameter of the steel pipe is 125mm to 140mm. For example, since the pouring device 200 of the present application is used to avoid the problem of concrete segregation and make the concrete filled densely, the pump pipe for pouring concrete can be a high-pressure small-diameter pump pipe with an inner diameter of 125mm and an outer diameter of 140mm. Correspondingly, The diameter of the steel pipe can be 125mm, corresponding to the pump pipe. Furthermore, the thickness of the steel pipe can also be designed to be thicker to withstand the high pressure during concrete pouring. For example, the thickness of the steel pipe is 10mm to 15mm.

Further, please refer to Figure 1. In some embodiments, the steel pipe is welded to the steel plate. For example, at a construction site, steel pipes and steel plates can be welded, which can facilitate workers to manufacture the pouring device 200 and obtain local materials, thereby improving the efficiency of workers.

Furthermore, in order to avoid the problem of segregation during the pouring process of the shaped steel concrete component 100, the applicants of this application also proposed a pouring method of shaped steel concrete.

Further, please refer to Figure 2. In some embodiments, the method of pouring steel concrete includes the steps:

S100. Install the pouring device 200 at the bottom of the steel concrete component 100. The pouring device 200 includes a bottom plate 210, a baffle 250 and a joint 260. The bottom plate 210 is provided with a first through hole 211; the baffle 250 is slidingly connected to the bottom plate 210. And the baffle 250 can be driven to slide relative to the base plate 210 to close or open the first through hole 211; the joint 260 includes a connecting portion 261 and a butt portion 262. The connecting portion 261 is connected to the surface of the base plate 210, and the butt portion 262 is used for connection. pump tube;

S200. Use the pump tube to connect the docking part 262 and open the first through hole 211;

S300. Transport concrete into the first through hole 211;

S400. After the pouring is completed, the first through hole 211 is closed.

Specifically, when the pouring device 200 is installed at the bottom of the steel concrete component 100, the pouring device 200 acts as a template on the one hand, and pours through it on the other hand. Considering that the pressure of pouring concrete from the bottom up is relatively high, therefore, On the one hand, the concrete ground pump truck and the pouring device 200 are connected through high-pressure pump pipes. Specifically, the pump pipe of the concrete ground pump truck needs to be a high-pressure small-diameter pump pipe with an inner diameter of 125 mm and an outer diameter of 140 mm. A pump pipe with a larger wall thickness can be used. bear greater pressure. At the same time, if the concrete pouring speed is too fast, the 100 parts of the steel concrete components will not be filled densely. Therefore, small-diameter pump pipes are selected to reduce the concrete injection speed. Furthermore, in order to ensure the quality of high-rise building structures, concrete The maximum particle size of coarse aggregate shall not be greater than 1/2 of the minimum clear distance between steel bars or steel bars and steel bars, and the slump of concrete shall be maintained at 180mm to 220mm.

Further, the docking part 262 is connected to the pump pipe, and the baffle 250 is slid to open the first through hole 211. In this way, concrete can enter the steel concrete member 100 from the first through hole 211, and concrete is poured. Afterwards, the concrete is poured. After completion, in order to prevent the concrete from flowing out from the first through hole 211, the operating baffle 250 slides to close the first through hole 211. In this way, the pouring method of shaped steel concrete can avoid the problem of segregation during the pouring process of the shaped steel concrete component 100.

Further, please refer to Figure 3. In some embodiments, the step of pouring concrete in sections is also included. The steel concrete component 100 is divided into multiple sections, and the pouring device 200 is installed at the bottom of the multi-section steel concrete component 100.

Specifically, because of the high structure of high-rise buildings and the limited rated pumping pressure of the ground pump of the concrete ground pump truck, if only one-time pouring from the bottom of the profiled steel concrete member 100 is used, the concrete ground pump truck needs to have a larger ground pump. Rated pumping pressure, therefore, the cost is high, and the quality of the pouring process will be affected. Therefore, dividing the steel concrete component 100 into multiple sections and installing the pouring device 200 at the bottom of the multi-section steel concrete component 100 can not only save concrete ground pumps The cost of the truck is reduced, and the concrete pouring can also be filled densely to avoid segregation.

The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those of ordinary skill in the art, various modifications can be made without departing from the purpose of the present invention. Variety. In addition, the embodiments of the present invention and the features in the embodiments may be combined with each other without conflict.

Claims

Pouring device, used for connecting steel concrete components, is characterized by including:

The base plate is provided with a first through hole;

A baffle is slidably connected to the bottom plate, and the baffle can be driven to slide relative to the bottom plate to close or open the first through hole;

The joint includes a connecting part and a butt part, the connection part is connected to the surface of the bottom plate, and the butt part is used to connect the pump tube.
The pouring device according to claim 1, further comprising two vertical plates and a horizontal plate, the vertical plate has a first surface and a second surface, the first surface is connected to the bottom plate, and the Both ends of the horizontal plate are respectively connected to one end of the two vertical plates, so that the two vertical plates, the horizontal plate and the bottom plate form a chute; wherein, the baffle is arranged on the chute. .
The pouring device according to claim 1, wherein the baffle includes an operating part, and the operating part can be driven to slide the baffle relative to the bottom plate.
The pouring device according to claim 3, characterized in that the operating part includes a circular ring.
The pouring device according to claim 2, characterized in that the bottom plate, the vertical plate, the horizontal plate, the baffle and the joint are made of steel.
The pouring device according to claim 2, wherein the first surface is welded to the bottom plate, the horizontal plate is welded to the vertical plate, and the connecting portion is welded to the vertical plate.
The pouring device according to claim 1, wherein the butt portion includes a steel pipe, the connecting portion includes a steel plate, the steel plate is provided with a second through hole, and the steel pipe is connected to the second through hole.
The pouring device according to claim 7, wherein the steel pipe is welded to the steel plate.
The pouring method of profiled steel concrete is characterized by including the steps:

A pouring device is installed at the bottom of the profiled steel concrete member, wherein the pouring device includes a base plate provided with a first through hole; a baffle slidably connected to the base plate, and the baffle can be driven to slide relative to the base plate, To close or open the first through hole; the joint includes a connecting portion and a butt portion, the connecting portion is connected to the surface of the bottom plate, and the butt portion is used to connect the pump tube;

Use a pump tube to connect the docking part and open the first through hole;

Transport concrete into the first through hole;

After the pouring is completed, the first through hole is closed.
The method of pouring shaped steel concrete according to claim 9, further comprising the step of pouring concrete in sections, dividing the shaped steel concrete component into multiple sections, and installing the pouring device at the bottom of the multiple sections of shaped steel concrete component. .