CN110130648A - A kind of structure and method of steel pipe column side-wall hole casting concrete - Google Patents

Abstract

The invention discloses a structure and a method for pouring concrete by opening a hole in the side wall of a steel pipe column. The invention provides a pouring hole (3) on the side wall of a steel pipe column (1), and the steel pipe column (1) under the pouring hole (3) ) side wall is provided with a drain hole (4); the pump pipe is extended from the pouring hole (3) into the steel pipe column (1) to complete the concrete pouring in the steel pipe column; after the concrete pouring is completed, the pouring hole (3) and the drain Hole (4) plugged. The invention improves the construction safety factor, shortens the construction period, and plays a good role in saving labor force and construction cost. The invention has the characteristics of simple structure, safe and convenient construction, time-saving and labor-saving.

Description

A structure and method for pouring concrete with holes in the side wall of a steel pipe column

technical field

The invention relates to a structure and a method for pouring concrete through holes in the side wall of a steel pipe column, and belongs to the technical field of building construction.

Background technique

Concrete-filled steel tube column-reinforced concrete core tube dual lateral force-resistant system structure is a commonly used structural form of super high-rise buildings. The outer frame of this structural form is usually designed as a horizontal steel structure + concrete-filled steel tube column. Since the inner tube and the outer frame are made of materials with different properties, it is difficult to synchronize the construction of the reinforced concrete core tube and the outer frame steel structure.

Contents of the invention

The object of the present invention is to provide a structure and method for pouring concrete through holes in the side walls of steel pipe columns, so that after the continuous installation of steel pipe columns is completed, concrete pouring can be carried out in the floor, which can reduce aerial work and ensure project quality and construction quality. progress, thereby overcoming the deficiencies of the prior art.

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

A structure for pouring concrete with openings in the side wall of a steel pipe column according to the present invention; comprising a steel pipe column, a pouring hole capable of extending into a pump pipe is provided on the side wall of the steel pipe column, and a scupper.

In the above structure, the inner wall of the steel pipe column at the pouring hole is provided with a reinforcing ring, and the reinforcing ring is provided with a grouting hole; the center line of the reinforcing ring coincides with the center line of the pouring hole; the outer diameter of the reinforcing ring is larger than the diameter of the pouring hole , the aperture of the reinforcing ring is smaller than the aperture of the pouring hole; the contact surface of the reinforcing ring corresponds to the curvature of the inner wall of the steel pipe column; the periphery of the reinforcing ring is welded to the inner wall of the steel pipe column.

A method for pouring concrete by opening a hole in the side wall of a steel pipe column of the present invention for the above-mentioned structure; the method is to pre-set a pouring hole on the side wall of the steel pipe column, and set a drain hole on the side wall of the steel pipe column below the pouring hole; Extend the pump pipe from the pouring hole into the steel pipe column to complete the concrete pouring in the steel pipe column; after the concrete pouring is completed, seal the pouring hole and the drain hole.

In the aforementioned method, the center line of the pouring hole is located at 800 mm to 1200 mm above the level of the top surface of the floor steel beam.

In the aforementioned method, an operation platform is provided on the floor steel beam at the pouring hole; edge guardrails are provided around the operation platform.

In the aforementioned method, the pump pipes include a group of vertical pump pipes connected end to end; the vertical pump pipes are connected to the floor steel beams through brackets.

In the aforementioned method, the two ends of the vertical pump pipe are provided with connecting flanges; a section of the vertical pump pipe located at the pouring hole is removed, and the top end of the lower section of the vertical pump pipe is connected to one end of the right-angle bend pump pipe; the other end of the right-angle bend pump pipe is One end extends into the steel pipe column and is connected to the small elbow through the connecting flange; the outlet end of the small elbow bends downward and coincides with the centerline of the steel pipe column.

In the aforementioned method, a support is provided at the bottom of the right-angled pump pipe, and the support is connected to the operation platform or the side guardrail.

In the aforementioned method, the pouring hole and the drain hole are cut using numerical control cutting technology, and the cut original steel plate for the pouring hole is used to seal the pouring hole after the concrete pouring is completed; the cut original steel plate for the drain hole is used for concrete After the pouring is completed, the weep hole shall be sealed.

In the aforementioned method, when pouring concrete, layered vibration is used, and the layered height is not greater than 1 meter; when layering stops, a medium-frequency vibrating rod is used to extend into the steel pipe column from the pouring hole for vibration; With artificial mallet knocking, judge whether the concrete is dense according to the sound.

In the aforementioned method, the pouring of the same steel pipe column should be carried out continuously, and the interval time in between should not exceed the initial setting time of the concrete; when the concrete cannot be supplied in time, the intermittent pumping method should be adopted.

Due to the adoption of the above technical solution, compared with the prior art, the present invention improves the construction safety factor, shortens the construction period, and plays a good role in saving labor and construction costs. The invention has the characteristics of simple structure, safe and convenient construction, time-saving and labor-saving.

Description of drawings

Fig. 1 is a schematic diagram of the method of the present invention;

Fig. 2 is the structural representation of reinforcing ring;

Fig. 3 is the spare former steel plate of pouring hole that cuts off;

Fig. 4 is the original steel plate of the scupper that is cut out for use.

The marks in the drawings are: 1-steel pipe column, 2-floor steel beam, 3-pouring hole, 4-drainage hole, 5-original steel plate for weeping hole, 6-reinforcing ring, 7-support, 8-grouting Hole, 9-inner wall of steel pipe column, 10-original steel plate for pouring hole, 11-operating platform, 12-edge guardrail, 13-small elbow, 14-bracket, 15-connecting flange, 16-right-angle elbow pump pipe, 17 - vertical pump tube, 18 - contact surface.

Detailed ways

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

A steel pipe column side wall opening pouring concrete structure of the present invention, as shown in Figure 1 and Figure 2, includes a steel pipe column 1, a pouring hole 3 that can extend into the pump pipe is provided on the side wall of the steel pipe column 1, and A drain hole 4 is provided on the side wall of the steel pipe column 1 below the pouring hole 3 .

In the above structure, a reinforcement ring 6 is provided on the inner wall of the steel pipe column 1 at the pouring hole 3, and the reinforcement ring 6 is shown in Figure 2, and the reinforcement ring 6 is provided with a grouting hole 8; the center line of the reinforcement ring 6 and The center line of the pouring hole 3 coincides; the outer diameter of the reinforcing ring 6 is larger than the aperture of the pouring hole 3, and the aperture of the reinforcing ring 6 is smaller than the aperture of the pouring hole 3; the radian of the contact surface 18 of the reinforcing ring 6 and the inner wall 9 of the steel pipe column 1 Corresponding; the reinforcement ring 6 is welded with the inner wall 9 of the steel pipe column, and the grade of the weld is first grade.

A method for pouring concrete by opening a hole in the side wall of a steel pipe column of the present invention for the above-mentioned structure; A drain hole 4 is provided on the side wall of the steel pipe column 1; the pump pipe is extended from the pouring hole 3 into the steel pipe column 1 to complete the concrete pouring in the steel pipe column; after the concrete pouring is completed, the pouring hole 3 and the drain hole 4 are blocked.

The center line of the pouring hole 3 is located at 800 mm to 1200 mm above the level of the top surface of the floor steel beam 2 . An operation platform 11 is provided on the floor steel beam 2 at the pouring hole 3; a border guardrail 12 is provided around the operation platform 11. The pump pipes include a group of vertical pump pipes 17 connected end to end; the vertical pump pipes 17 are connected to the floor steel beams 2 via brackets 14 . Connecting flanges 15 are provided at both ends of the vertical pump pipe 17; a section of the vertical pump pipe 17 located at the pouring hole 3 is removed, and the top of the lower vertical pump pipe 17 is connected to one end of the right-angle bend pump pipe 16; the right-angle bend pump pipe 16 The other end extends into the steel pipe column 1 and connects with the small elbow 13 through the connecting flange 15; A support 7 is provided at the bottom of the right-angled pump pipe 16, and the support 7 is connected with the operating platform 11 or the side guardrail 12.

The pouring hole 3 and the drain hole 4 are cut by numerical control cutting technology, and the cut original steel plate 10 for the pouring hole (see Figure 3) is used to seal the pouring hole 3 after the concrete pouring is completed; the cut original steel plate for the drain hole 5 (see Figure 4) is used to block the drain hole 4 after the concrete pouring is completed.

When pouring concrete, vibrate in layers, and the height of the layers is not more than 1 meter; when the layers are stopped, use a medium-frequency vibrating rod to extend from the pouring hole 3 into the steel pipe column 1 for vibration; The artificial mallet is struck to judge whether the concrete is dense according to the sound. The pouring of the same steel pipe column 1 should be carried out continuously, and the intermediate interval time should not exceed the initial setting time of the concrete; when the concrete cannot be supplied in time, the intermittent pumping method should be adopted.

Example

As shown in Fig. 1 : it includes the pouring hole 3 opened on the side wall of the steel pipe column 1, and the pouring hole 3 is used as the protruding hole of the concrete pouring pump pipe of the steel pipe column on the lower floor. The pouring hole 3 is set at 800mm-1200mm above the level of the top surface of the floor steel beam 2, and the height of the pouring hole 3 should be convenient for pouring concrete. A drain hole 4 is arranged downward from the center line of the pouring hole 3, and the drain hole 4 is used for draining water and controlling the elevation of concrete pouring. During specific construction, a reinforcing ring 6 with a thickness of 25 mm is pasted on the inner wall 9 of the steel pipe column in the pouring hole 3. The reinforcing ring 6 is shown in Figure 2. The reinforcing ring 6 is provided with a grouting hole 8, and the grouting hole 8 The axis is consistent with the axis of pouring hole 3. Both the pouring hole 3 and the drain hole 4 are cut by numerical control cutting technology, and the cut pouring hole original steel plate 10 (see Figure 3) is used to seal the pouring hole 3 after the concrete pouring is completed; the cut drain hole is originally The steel plate 5 (see FIG. 4 ) is used to block the drain hole 4 after the concrete pouring is completed. When plugging, the pouring hole 3 and the original steel plate 10 of the pouring hole and the drain hole 4 and the original steel plate 5 of the drain hole should be ground, and the original steel plate 10 of the pouring hole and the original steel plate 5 of the drain hole should be polished to form a groove, and then The surrounding welding is completed in the groove, and the weld seam should be full without air bubbles. The weld grade is Class I weld. The outer arc of the reinforcement ring 6 should be the same as the 9 arcs of the inner wall of the steel pipe column to ensure that the outer arc of the reinforcement ring 6 fits closely with the inner arc of the steel pipe column. The fit is welded around the triangle weld.

The present invention constructs according to the following steps:

1. Complete the cutting of the pouring hole 3 and the drain hole 4 on the steel pipe column 1 according to the drawings in a professional chemical factory; the cut original steel plate 10 for the pouring hole and the original steel plate 5 for the drain hole are reserved for future use. And complete the production of the reinforcing ring 6 according to the drawings in the specialized chemical factory, and weld the reinforcing ring 6 on the inner wall 9 of the steel pipe column at the position corresponding to the pouring hole 3;

2. Connect the steel pipe column 1 end to end to complete the installation of the steel pipe column 1; at the same time, complete the connection between the steel pipe column 1 and the floor steel beam;

3. Set up an operation platform 11 outside the pouring hole 3 of the steel pipe column 1; and set up a border guardrail 12 on the edge of the operation platform 11;

4. Use the operating platform 11 to lay out the vertical pump pipe 17, the vertical pump pipe 17 is connected with the connecting flange 15, and the vertical pump pipe 17 is connected to the floor steel beam 2 through the bracket 14;

5. Remove a section of vertical pump pipe 17 located outside the pouring hole 3, and connect the right-angled pump pipe 16 at the top of the next vertical pump pipe 17, and the other end of the right-angled pump pipe 16 extends into the steel pipe column 1 and passes through the connecting flange 15 is connected with the small elbow 13; the outlet end of the small elbow 13 is bent downward and coincides with the center line of the steel pipe column 1;

6. A support 7 is provided at the bottom of the right-angled pump pipe 16, and the support 7 is connected to the operating platform 11 or the side guardrail 12.

7. Concrete pouring; Concrete pouring adopts layered vibrating, the layering height is not more than 1 meter, and the layering rest time, the medium frequency vibrating rod is used to extend from the pouring hole 3 into the steel pipe column 1 for vibration. At the same time, the outside of the steel pipe column 1 is knocked with an artificial mallet to judge whether the concrete is dense according to the sound. When pouring, the pumping force of the pump truck should be well controlled, so that the concrete falls vertically in the cavity, and the kinetic energy generated by the falling concrete is used to achieve the self-compacting of the concrete. And utilize weep hole 4 to control, when pouring to weep hole 4 and overflow concrete slurry, promptly stop pouring. The distance between the concrete pouring forming surface in the steel pipe column 1 in the lower section and the drain hole 4 should not be less than 500mm.

8. After the concrete pouring of the first floor is completed, the original steel plate 10 of the pouring hole and the original steel plate 5 of the drain hole are sealed and welded before the concrete pouring of the upper layer, and the weld grade is a first-class weld. The welding process must be strictly controlled during welding. After the welding is completed, a flaw detection test is required to ensure the quality.

When sealing and welding the original steel plate 10 of the pouring hole and the original steel plate 5 of the drain hole, it should be ensured that the concrete in the steel pipe column 1 cannot be damaged by welding. The pouring of the same steel pipe column 1 should be carried out continuously, and the interval between them should not exceed the initial setting time of the concrete. When concrete cannot be supplied in time, intermittent pumping should be adopted.

The concrete pouring process is carried out from bottom to top, and steps 5 to 8 are repeated until the pouring of the entire steel pipe column 1 is completed.

The invention improves the construction safety factor, shortens the construction period, and plays a good role in saving labor force and construction cost. The invention has the characteristics of simple structure, safe and convenient construction, time-saving and labor-saving.

Claims (10)

1. a kind of structure of steel pipe column side-wall hole casting concrete, including steel pipe column (1), it is characterised in that: in steel pipe column (1) Side wall is equipped with the pouring hole (3) that can protrude into pump line, and drain hole is equipped on steel pipe column (1) side wall below pouring hole (3) (4).

2. the structure of steel pipe column side-wall hole casting concrete according to claim 1, it is characterised in that: the pouring hole (3) steel pipe column (1) inner wall at is equipped with reinforcing ring (6), and reinforcing ring (6) is equipped with grout hole (8)；The center line of reinforcing ring (6) with The center line of pouring hole (3) is overlapped；Reinforcing ring (6) outer diameter is greater than pouring hole (3) aperture, and reinforcing ring (6) aperture is less than pouring hole (3) aperture；The contact surface (18) of reinforcing ring (6) and the radian of inner wall of steel pipe column (9) of steel pipe column (1) are corresponding；Reinforcing ring (6) four Week welds with inner wall of steel pipe column (9).

3. a kind of method of steel pipe column side-wall hole casting concrete；It is characterized by: this method is on steel pipe column (1) side wall It presets pouring hole (3), and drain hole (4) is set on steel pipe column (1) side wall below pouring hole (3)；By pump line from pouring It builds hole (3) and protrudes into pouring for the interior completion steel pipe column interior concrete of steel pipe column (1)；After the completion of concreting, by pouring hole (3) and Drain hole (4) blocks.

4. the method for steel pipe column side-wall hole casting concrete according to claim 3, it is characterised in that: the pouring hole (3) center line is located at the above 800mm~1200mm of absolute altitude of floor girder steel (2) top surface.

5. the method for steel pipe column side-wall hole casting concrete according to claim 3, it is characterised in that: the pouring hole (3) the floor girder steel (2) at is equipped with operating platform (11)；It is equipped with around operating platform (11) and faces side guardrail (12).

6. the method for steel pipe column side-wall hole casting concrete according to claim 3, it is characterised in that: the pump line includes The vertical pump line (17) of one group of head and the tail connection；Vertical pump line (17) is connect through bracket (14) with floor girder steel (2).

7. the method for steel pipe column side-wall hole casting concrete according to claim 6, it is characterised in that: the vertical pump line (17) both ends are equipped with connecting flange (15)；One section of vertical pump line (17) being located at pouring hole (3) is removed, by the vertical pump line of lower section (17) top is connect with quarter bend pump line (16) one end；Quarter bend pump line (16) other end protrudes into steel pipe column (1) and through connecting Flange (15) is connect with eyesight elbow (13)；The outlet end of eyesight elbow (13) is bent downwardly and is overlapped with the center line of steel pipe column (1).

8. the method for steel pipe column side-wall hole casting concrete according to claim 7, it is characterised in that: the quarter bend pump It manages (16) bottom and is equipped with support (7), support (7) and operating platform (11) or face side guardrail (12) and connect.

9. the method for steel pipe column side-wall hole casting concrete according to claim 3, it is characterised in that: the pouring hole (3) it is cut with drain hole (4) using cutting technique, the pouring hole raw steel plate (10) cut down is poured for concrete Pouring hole (3) is blocked after the completion of building；The drain hole raw steel plate (5) cut down for after the completion of concreting to letting out Water hole (4) is blocked.

10. the method for steel pipe column side-wall hole casting concrete according to claim 3, it is characterised in that: carrying out coagulation It when soil pours, is vibrated using layering, layer height is not more than 1 meter；Layering is when resting, using intermediate frequency vibrating spear from pouring hole (3) It puts in steel pipe column (1) and vibrates；The artificial mallet of steel pipe column (1) fit on simultaneously taps, and judges that concrete is according to sound It is no closely knit；Pouring for same root steel pipe column (1) should be carried out continuously, presetting period of the midfeather time no more than concrete； When concrete cannot be in time for that at once, should take intermittent pumping mode.