Steel pipe column jacking concrete exhaust method

Abstract

The invention provides a steel pipe column jacking concrete exhaust method. The method comprises the following steps that S1, a through hole is formed in the upper end of the side wall of a steel pipe column body; s2, an exhaust pipe is arranged in the through hole in a penetrating mode, an air inlet port of the exhaust pipe faces the inner side of a top plate of the steel pipe column body, a gap is formed between the air inlet port of the exhaust pipe and the top plate, and an air outlet port of the exhaust pipe is located outside the steel pipe column body and higher than the top plate; and S3, the gas and the concrete in the steel pipe column body are sequentially exhausted out of the steel pipe column body through the exhaust pipe. Exhaust overflow is conducted on the side portion of the steel pipe column, the influence on the top of the steel pipe column is avoided, and the construction quality and efficiency are improved.

Description

Technical Field

[0001] The invention relates to the technical field of steel pipe column construction, and more specifically, to a method for exhausting exhaust gas by jacking concrete of a steel pipe column. Background Art

[0002] In recent years, in order to save materials, steel tube concrete columns are mostly used below the shoulder beam of the factory building steel structure construction. A crane beam is installed on the cover plate on the shoulder beam (that is, the top plate of the steel tube column). During the installation of the factory building column, after the installation of the steel tube column body is completed, it is necessary to open a hole from the bottom of the steel tube column to lift concrete into the inside of the steel tube column to increase the strength of the factory building column. In order to ensure the discharge of gas inside the steel tube column, multiple exhaust holes are generally opened at the top plate of the steel tube column of the shoulder beam. Under normal circumstances, after the concrete is lifted to the top of the steel tube column, the concrete is discharged from the exhaust hole at the top of the column. The discharged concrete seriously pollutes the column and is extremely difficult to clean. In addition, since the subsequent construction process after the installation of the steel tube concrete column is the installation of the crane beam, if the exhaust hole is opened at the top, the installation of the crane beam must be carried out after the concrete in the steel tube column solidifies and the exhaust hole at the top is closed, which has a greater impact on the construction period. Summary of the invention

[0003] In view of the above problems, the purpose of the present invention is to provide a method for exhausting concrete during steel pipe column jacking, which can exhaust overflow at the side of the steel pipe column, avoid affecting the top of the steel pipe column, and improve construction quality and efficiency.

[0004] The present invention provides a method for exhausting concrete by lifting a steel pipe column, comprising the following steps:

[0005] S1: a through hole is opened at the upper end of the side wall of the steel pipe column body;

[0006] S2: an exhaust pipe is inserted into the through hole, an air inlet port of the exhaust pipe faces the inner side of the top plate of the steel pipe column body and has a gap with the top plate, and an air outlet port of the exhaust pipe is located outside the steel pipe column body and higher than the top plate;

[0007] S3: The gas and concrete in the steel pipe column body are discharged to the outside of the steel pipe column body through the exhaust pipe in sequence.

[0008] The distance between the through hole and the top plate of the steel pipe column body is not less than 200 mm.

[0009] The exhaust pipe includes a first vertical pipe, a first horizontal pipe and a second vertical pipe which are connected in sequence. The first vertical pipe is arranged inside the steel pipe column body and its central axis is parallel to the central axis of the steel pipe column body. The first horizontal pipe passes through the through hole horizontally, and the second vertical pipe is located outside the steel pipe column body.

[0010] The upper end of the first vertical pipe is 20mm-40mm away from the top plate of the steel pipe column body.

[0011] The second vertical pipe is 90mm-110mm higher than the top plate of the steel pipe column body.

[0012] A second transverse tube is connected to the upper end of the second vertical tube and faces away from the steel pipe column body. The length of the second transverse tube is 90 mm-110 mm.

[0013] The first vertical pipe, the first horizontal pipe, the second vertical pipe, and the second horizontal pipe are sequentially connected through 90° elbow transitions.

[0014] The first transverse tube passes through the through hole horizontally and penetrates the shoulder beam at the upper part of the steel pipe column body.

[0015] There is a gap between the outer wall of the second vertical pipe and the shoulder beam.

[0016] The exhaust pipe is a steel pipe, and a collecting container is arranged at the gas outlet port of the exhaust pipe to collect the concrete discharged from the exhaust pipe.

[0017] From the above description, it can be known that the steel pipe column jacking concrete exhaust method provided by the present invention exhausts the air in the steel pipe column body during the jacking concrete construction through the exhaust pipe arranged on the side wall of the steel pipe column body, and the exhaust pipe can also overflow the excess concrete from the upper side of the steel pipe column body, avoiding the exhaust overflow of the opening at the upper part of the steel pipe column body, and the overhead crane beam on the steel pipe column can be constructed at the same time. The present invention saves construction time and improves the construction efficiency and quality of the steel pipe column.

[0018] In order to achieve the above and related purposes, one or more aspects of the present invention include features that will be described in detail later and are particularly pointed out in the claims. The following description and the accompanying drawings describe some exemplary aspects of the present invention in detail. However, these aspects indicate only some of the various ways in which the principles of the present invention can be used. In addition, the present invention is intended to include all of these aspects and their equivalents. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] By referring to the following description in conjunction with the accompanying drawings, and with a more comprehensive understanding of the present invention, other objects and results of the present invention will become more apparent and easy to understand. In the accompanying drawings:

[0020] Figure 1 It is a structural schematic diagram of a method for exhausting concrete by lifting a steel pipe column according to an embodiment of the present invention;

[0021] Figure 2 is a top view of an exhaust pipe according to an embodiment of the present invention;

[0022] Figure 3 for Figure 2 AA section view;

[0023] Among them, 1-steel pipe column body, 2-through hole, 3-exhaust pipe, 31-first vertical pipe, 32-first horizontal pipe, 33-second vertical pipe, 34-second horizontal pipe, 35-bend pipe, 4-shoulder beam, 5-overhead crane beam;

[0024] The same reference numerals throughout the drawings indicate similar or corresponding features or functions. DETAILED DESCRIPTION

[0025] In the following description, for the purpose of illustration, in order to provide a comprehensive understanding of one or more embodiments, many specific details are set forth. However, it is apparent that these embodiments may also be implemented without these specific details. In other examples, for ease of describing one or more embodiments, known structures and devices are shown in the form of block diagrams.

[0026] The present invention can be subjected to various changes and can have various embodiments, and specific embodiments are illustrated and described in the accompanying drawings. However, the present invention is not limited to the specific implementation, and all changes, equivalents and substitutes falling within the concept and technical scope of the present invention are included, and should be understood to be included.

[0027] Ordinal terms such as first, second, etc. may be used to describe various constituent elements, but the constituent elements are not limited to the terms. The terms are only used to distinguish one constituent element from another constituent element. For example, without departing from the scope of the claims of the present invention, the second constituent element may be named as the first constituent element, and similarly, the first constituent element may be named as the second constituent element. The terms and / or include a combination of multiple associated items or a certain item among multiple associated items.

[0028] It should be understood that when a certain component is mentioned to be "connected" or "contacted" with other components, this includes not only the case where it is directly connected or contacted with other components, but also the case where other components exist in between. Conversely, when a certain component is mentioned to be "directly connected" or "directly contacted" with other components, it should be understood that there are no other components in between.

[0029] In the description of the embodiments, when it is described that a certain component is formed "on or under" another component, on or under includes two components directly contacting each other or at least one other component is arranged and formed between the two components. Moreover, when it is expressed as on or under, it refers to not only the upper direction but also the lower direction based on a certain component.

[0030] The terms used in this application are only used to illustrate specific embodiments and are not intended to limit the present invention. Unless the context clearly provides otherwise, singular expressions include plural expressions. In this application, it should be understood that terms such as "including" or "having" are used to specify the presence of features, numbers, steps, operations, constituent elements, parts or combinations thereof recorded in the specification, and do not preclude the presence or additional possibility of one or more other features, numbers, steps, operations, constituent elements, parts or combinations thereof.

[0031] Unless otherwise defined, all terms used herein, including technical or scientific terms, have the same meaning as those generally understood by those skilled in the art. Terms defined in commonly used dictionaries should be interpreted as having the same meaning as in the context of the relevant technology, and if not clearly defined in this application, they should not be interpreted as ideal or overly formal meanings.

[0032] The specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0033] like Figure 1-Figure 3 As shown together, the steel pipe column jacking concrete exhaust method proposed in this embodiment can be used to inject concrete from the bottom of the steel pipe column body into the inside, exhaust air and concrete during the filling process, and can also be used for exhaust overflow during grouting jacking inside other containers.

[0034] The steel pipe column jacking concrete exhaust method comprises the following steps:

[0035] S1: A through hole 2 is opened at the upper end of the side wall of the steel pipe column body 1.

[0036] The through hole 2 is used to connect the exhaust pipe 3. The through hole 2 is arranged on the side wall of the steel pipe column body 1 instead of on the top, avoiding exhaust overflow from the hole opened on the top of the steel pipe column body 1. The overflowing concrete will not pollute the top of the steel pipe column body 1, saving subsequent cleaning work. The top of the steel pipe column body 1 is not affected at all, and the overhead crane beam 5 can be constructed at the same time as the steel pipe column concrete jacking construction.

[0037] In order to ensure that the opening of the through hole 2 does not affect the strength of the steel pipe column body 1, the distance between the through hole 2 and the top plate of the steel pipe column body 1 is not less than 200 mm, which can avoid the weld between the side wall and the top plate of the steel pipe column body 1 and facilitate the installation and exhaust of the exhaust pipe 3.

[0038] S2: An exhaust pipe 3 is passed through the through hole 2, an air inlet port of the exhaust pipe 3 faces the inner side of the top plate of the steel pipe column body 1 and has a gap with the top plate, and an air outlet port of the exhaust pipe 3 is located outside the steel pipe column body 1 and higher than the top plate.

[0039] The exhaust pipe 3 is fixed in the through hole 2 and extends from the steel pipe column body 1 to the outside of the steel pipe column body 1 through the through hole 2. In order to smoothly discharge all the air in the steel pipe column body 1, the air inlet port of the exhaust pipe 3 faces upward and is close to the top plate, which can ensure that almost all the air is discharged from the exhaust pipe 3 before the concrete is filled, and the grouting quality is good and fully filled.

[0040] The air outlet port of the exhaust pipe 3 is higher than the air inlet port and also higher than the top plate. When the concrete flows out from the air outlet port, it indicates that the air inside the steel pipe column body 1 is completely discharged and the concrete rises to the top and is completely filled.

[0041] Specifically, the exhaust pipe 3 may include a first vertical pipe 31, a first horizontal pipe 32 and a second vertical pipe 33 connected in sequence, the first vertical pipe 31 is arranged inside the steel pipe column body 1 and the central axis is parallel to the central axis of the steel pipe column body 1, the first horizontal pipe 32 passes through the through hole 2 horizontally, and the second vertical pipe 33 is located outside the steel pipe column body 1 and may have an appropriate gap with the outer wall.

[0042] The first vertical pipe 31, the first horizontal pipe 32 and the second vertical pipe 33 form a basically U-shaped exhaust pipe 3. As the concrete is lifted, the air in the steel pipe column body 1 enters the exhaust pipe 3 from the air inlet port at the upper end of the first vertical pipe 31, enters the second vertical pipe 33 along the first horizontal pipe 32, and is discharged to the outside through the air outlet port of the second vertical pipe 33, and the discharge is smooth. When the concrete is lifted to the top, the concrete is discharged to the outside through the first vertical pipe 31, the first horizontal pipe 32 and the second vertical pipe 33.

[0043] The first vertical pipe 31 is arranged as close to the middle of the steel pipe column body 1 as possible, but should avoid the rib plate in the middle of the steel pipe column body 1 .

[0044] In order to completely exhaust the air and fill the concrete, the upper end of the first vertical pipe 31 is 20mm-40mm away from the top plate of the steel pipe column body 1. The distance between the air inlet port and the top plate is about 30mm, which is convenient for air to enter and will not affect the full grouting.

[0045] In order to ensure that the interior of the steel pipe column body 1 is filled with concrete, the second vertical pipe 33 can be 90mm-110mm higher than the top plate of the steel pipe column body 1. Grouting is still performed after the concrete is filled, and the excess concrete is discharged from the higher second vertical pipe 33, indicating that the interior of the steel pipe column body 1 is already filled with concrete and the grouting can be stopped.

[0046] In order to facilitate the collection of discharged concrete, a second transverse pipe 34 facing away from the steel pipe column body 1 is connected to the upper end of the second vertical pipe 33. The length of the second transverse pipe 34 is 90mm-110mm. The horizontal second transverse pipe 34 facilitates the discharge of concrete and air.

[0047] In order to ensure smooth flow of air and concrete in the exhaust pipe 3, the first vertical pipe 31, the first horizontal pipe 32, the second vertical pipe 33, and the second horizontal pipe 32 are sequentially connected by 90° elbows 35. The first vertical pipe 31, the first horizontal pipe 32, the second vertical pipe 33, and the second horizontal pipe 34 have smooth transitions, and air and concrete can be discharged smoothly.

[0048] In order to collect the discharged concrete, a collecting container is provided at the gas outlet port of the exhaust pipe 3 to collect the concrete discharged from the exhaust pipe 3 to prevent the concrete from scattering and polluting the construction environment.

[0049] The exhaust pipe 3 is a steel pipe, and the transverse pipe of the exhaust pipe 3 is welded and fixed to the through hole 2 on the steel column body to prevent the exhaust pipe 3 from being displaced during construction.

[0050] Since the upper part of the steel pipe column in this embodiment has a shoulder beam 4, the first horizontal pipe 32 passes through the through hole 2 horizontally and penetrates the shoulder beam 4 on the upper part of the steel pipe column body 1. The first vertical pipe 31 has an appropriate gap with the outer wall of the shoulder beam 4 and is higher than the upper part of the shoulder beam 4.

[0051] S3: The gas and concrete in the steel pipe column body 1 are discharged to the outside of the steel pipe column body 1 through the exhaust pipe 3 in sequence.

[0052] During the jacking concrete construction, the concrete gradually rises from the bottom of the steel pipe column body 1, and the air in the steel pipe column body 1 is discharged to the outside through the exhaust pipe 3 until the concrete rises to the top, the concrete is discharged from the exhaust pipe 3, and the grouting is stopped.

[0053] The above describes the steel pipe column jacking concrete exhaust method according to the present invention by way of example with reference to the accompanying drawings. However, those skilled in the art should understand that various improvements can be made to the steel pipe column jacking concrete exhaust method proposed by the present invention without departing from the content of the present invention. Therefore, the protection scope of the present invention should be determined by the content of the attached claims.

Claims

1. A method for exhausting concrete by lifting a steel pipe column, characterized in that: The following steps are involved: S1: a through hole is opened at the upper end of the side wall of the steel pipe column body; S2: an exhaust pipe is inserted into the through hole, an air inlet port of the exhaust pipe faces the inner side of the top plate of the steel pipe column body and has a gap with the top plate, and an air outlet port of the exhaust pipe is located outside the steel pipe column body and higher than the top plate; S3: The gas and concrete in the steel pipe column body are discharged to the outside of the steel pipe column body through the exhaust pipe in sequence.

2. The method for exhausting concrete by jacking up a steel pipe column according to claim 1, characterized in that: The distance between the through hole and the top plate of the steel pipe column body is not less than 200 mm.

3. The method for exhausting concrete by jacking up a steel pipe column as claimed in claim 1, characterized in that: The exhaust pipe includes a first vertical pipe, a first horizontal pipe and a second vertical pipe which are connected in sequence. The first vertical pipe is arranged inside the steel pipe column body and its central axis is parallel to the central axis of the steel pipe column body. The first horizontal pipe passes through the through hole horizontally, and the second vertical pipe is located outside the steel pipe column body.

4. The method for exhausting concrete by jacking up a steel pipe column as claimed in claim 3, characterized in that: The upper end of the first vertical pipe is 20mm-40mm away from the top plate of the steel pipe column body.

5. The method for exhausting concrete by jacking up a steel pipe column as claimed in claim 3, characterized in that: The second vertical pipe is 90mm-110mm higher than the top plate of the steel pipe column body.

6. The method for exhausting concrete by jacking up a steel pipe column as claimed in claim 3, characterized in that: A second transverse tube is connected to the upper end of the second vertical tube and faces away from the steel pipe column body. The length of the second transverse tube is 90 mm-110 mm.

7. The method for exhausting concrete by jacking up a steel pipe column as claimed in claim 6, characterized in that: The first vertical pipe, the first horizontal pipe, the second vertical pipe, and the second horizontal pipe are sequentially connected through 90° elbow transitions.

8. The method for exhausting concrete by jacking up a steel pipe column as claimed in claim 3, characterized in that: The first transverse tube passes through the through hole horizontally and penetrates the shoulder beam at the upper part of the steel pipe column body.

9. The method for exhausting concrete by jacking up a steel pipe column as claimed in claim 8, characterized in that: There is a gap between the outer wall of the second vertical pipe and the shoulder beam.

10. The method for exhausting concrete by jacking up a steel pipe column as claimed in claim 1, characterized in that: The exhaust pipe is a steel pipe, and a collecting container is arranged at the gas outlet port of the exhaust pipe to collect the concrete discharged from the exhaust pipe.

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