Telescopic concrete filled steel tubular column dense pouring device

Abstract

The telescopic concrete filled steel tubular column dense pouring device comprises a separation component which is arranged on a pouring pipe and synchronously ascends and descends along with the pouring pipe, and the separation component makes contact with poured concrete. The separating members are separating rods which are arranged on the peripheral face of the pouring pipe in a hinged mode in the circumferential direction, and the hinged position of each separating rod is provided with a torsional spring which drives the separating rod to be in a horizontal state. After being in contact with the concrete, the separating components are used for separating along with the rising of the liquid level of the concrete and the change of the concrete, namely, the concrete is divided and stirred, so that bubbles in the concrete are discharged, the influence of the bubbles on the concrete is solved, and the uniformity and compactness of concrete filled steel tube pouring are improved. And meanwhile, the pouring pipe extends into the concrete, bubbles in the concrete and air in the steel pipe are discharged through the gravity fall pressure during concrete pouring, and therefore the uniformity and compactness of steel pipe concrete pouring are further improved.

Description

Technical Field

[0001] The present application relates to the technical field of steel tube concrete pouring, and in particular to a telescopic steel tube concrete column compacting pouring device. Background Art

[0002] Concrete-filled steel tube columns, a specialized building component, primarily consist of steel tubes filled with concrete. Combining the advantages of both materials, this structural form was initially used as bridge piers and later as columns in buildings. With the continuous advancement of construction technology, concrete-filled steel tube columns have gained widespread application in high-rise buildings, long-span bridges, and other fields. Their advantages include a small cross-section and high bearing capacity. The synergistic effect of the steel tube and concrete significantly increases the column's bearing capacity, thereby reducing its cross-sectional dimensions and expanding the building's usable space and area. Other advantages include excellent fire resistance and ease of construction.

[0003] Steel tube concrete column is a concrete pouring process in which steel tube is used as mold and concrete is poured in the steel tube. At present, in order to improve the stress performance of concrete in steel tube, as shown in the attached manual, Figure 1 As shown, multiple layers of partitions are also provided in the steel tube (the partitions are located between the columns, where the steel beams are connected on the columns), also known as partition steel tube concrete columns. The partitions can increase the stress-bearing structure of the steel tube and the concrete after pouring, improve the integrity of the columns and beams, and improve the performance of the steel tube concrete column, thereby improving the overall bearing capacity and seismic performance of the column.

[0004] At present, when pouring concrete in steel pipes, Figure 2 As shown, the pouring pipe is inserted from the top of the steel pipe and passed through the middle hole (pouring hole) in the middle of the partition. The pouring pipe can be used to continuously pour concrete slurry into the steel pipe. As the pouring liquid level rises, the pouring pipe is simultaneously lifted until the inner cavity of the steel pipe is poured. Compared with the current pouring structure with formwork erected, the steel pipe has the characteristic of good sealing during the pouring process. This characteristic will make it difficult for the gas in the steel pipe to be discharged during the pouring process, and then cause the gas to be integrated into the poured concrete, resulting in uneven concrete, bubbles, delamination and other problems, affecting the overall performance of the structure. At the same time, due to the setting of the partition inside the steel pipe, it still has a certain blocking effect on the discharge of gas in the steel pipe, further affecting the smooth discharge of gas in the steel pipe and affecting the pouring quality of steel pipe concrete. Summary of the Invention

[0005] In response to the above-mentioned problems, the present application aims to provide a telescopic steel tube concrete column dense pouring device, which can effectively discharge bubbles in the concrete by means of separating components and extending the pouring tube into the concrete, thereby improving the uniformity and density of the concrete pouring.

[0006] In order to achieve the above-mentioned purpose, the technical solution adopted in this application is as follows: a telescopic steel tube concrete column dense casting device, wherein partitions are arranged at intervals along the entire length of the steel tube, and casting holes are opened in the partitions, and casting pipes are passed through the casting holes for lifting and lowering. It is characterized in that: the dense casting device includes a partition member arranged on the casting pipe and rising and falling synchronously with the casting pipe, and the partition member is in contact with the cast concrete.

[0007] Preferably, the partitioning members are partitioning rods hingedly arranged on the outer peripheral surface of the casting pipe along the circumferential direction, and a torsion spring for driving the partitioning rod to be in a horizontal state is provided at the hinge of each partitioning rod.

[0008] Preferably, a positioning block is further provided on the outer peripheral surface of the casting pipe and contacts each of the horizontal dividing rods.

[0009] Preferably, the bottom end of the pouring pipe extends into the poured concrete, and the dividing rod is located below the liquid level of the poured concrete.

[0010] The beneficial effects of this application are as follows: after the partitioning components of the compacting pouring device come into contact with concrete, as the liquid level of the concrete rises, the concrete is divided and separated by the partitioning components in a changing state, that is, a partitioning and stirring effect is achieved on the concrete, thereby discharging bubbles in the concrete, eliminating the impact of bubbles on the concrete, and improving the uniformity and density of the steel tube concrete pouring. At the same time, the pouring pipe extends into the concrete, utilizing the gravity drop pressure during concrete pouring to discharge bubbles in the concrete and air in the steel pipe, thereby further improving the uniformity and density of the steel tube concrete pouring. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 This is a diagram showing the internal structure of the steel tube currently being poured with steel tube concrete.

[0012] Figure 2 Illustration of the step-by-step pouring of concrete in steel pipes.

[0013] Figure 3 Illustration of setting separation components on the pouring pipe for this application.

[0014] Figure 4 For this application Figure 3 Enlarged diagram of the structure at point A in the middle.

[0015] Figure 5 For this application Figure 4 The center dividing rod is shown in the vertical position.

[0016] Figure 6 For this application Figure 3 Top view.

[0017] Figure 7This is a diagram showing the state of the partition rod in the steel pipe and the pouring process through the partition hole.

[0018] Figure 8 For this application, the pouring tube is extended into the concrete as shown. DETAILED DESCRIPTION

[0019] In order to enable ordinary technicians in this field to better understand the technical solution of the present application, the technical solution of the present application is further described below in conjunction with the accompanying drawings and embodiments.

[0020] Refer to the attached Figures 1 to 8 The figure shows a telescopic steel tube concrete column dense pouring device, in which partitions 2 are arranged at intervals along the length of the steel tube 1, and pouring holes 2a are opened in the partitions 2. A pouring pipe 3 is provided in the pouring hole 2a for lifting and lowering. By passing the pouring pipe 3 through the pouring hole 2a, concrete can be poured into the steel tube through the pouring pipe 3. As the pouring liquid level rises, the height of the pouring pipe is synchronously raised to realize continuous pouring operation.

[0021] In order to solve the problem that the gas is difficult to be discharged smoothly when pouring concrete in steel pipes, which affects the quality of concrete pouring, the present application is provided with a dense pouring device, such as Figure 3 As shown, it includes a partitioning member disposed on the pouring tube 3 and rising and falling synchronously with the pouring tube 3. This partitioning member contacts the poured concrete. The function of this partitioning member is to divide and separate the concrete as it flows upward as the liquid level rises after contact with the concrete. In other words, it provides a partitioning and stirring effect on the concrete, thereby discharging bubbles in the concrete, eliminating the impact of bubbles on the concrete, and improving the uniformity and density of the steel tube concrete pouring.

[0022] Specifically, such as Figure 3-6 As shown, the partition member is a partition rod 4 hingedly arranged on the outer peripheral surface of the casting pipe 3 along the circumferential direction. Figure 6 As shown, the dividing rod 4 divides the steel pipe along the circumferential direction, and then after contacting with the concrete, the liquid level of the concrete can rise from the middle of the adjacent dividing rods 4. The concrete is "divided" by the dividing rod 4, so that the bubbles in the concrete can be effectively discharged, thereby improving the uniformity and density of the concrete pouring.

[0023] As the pouring liquid level in the steel pipe continues to rise, the pouring pipe 3 is lifted synchronously, so the partition rod 4 is set to be hinged. Figure 7 As shown, the partition rod 4 contacts the casting hole 2a of the partition plate 2, driving the partition rod as shown in FIG. Figure 7 As shown in the arc arrow in the figure b, they rotate toward each other until they are rotated to a vertical state and can pass through the pouring hole 2a along with the pouring pipe 3, avoiding contact and interference between the partition rod 4 and the partition plate 2.

[0024] After the dividing rod 4 passes through a partition 2, to ensure that the dividing rod 4 remains horizontal and "divides" the concrete, a torsion spring is installed at the hinge of each dividing rod 4 to drive it to a horizontal state (not shown in the figure, but to prevent slurry from entering the torsion spring and causing it to get stuck, a rubber sealing hose can be installed in the torsion spring position). After the dividing rod 4 passes through the casting hole 2a of the partition 2, the force of the torsion spring can drive each dividing rod 4 to return to a horizontal state, ensuring the "divide" effect on the concrete.

[0025] As the liquid level rises during the continuous pouring of concrete, the rising action will exert a certain driving force on the partition rod 4. In order to prevent the partition rod 4 from being turned upward by the driving force, Figure 4 As shown, a positioning block 31 is also provided on the outer circumference of the pouring pipe 3 for contacting each horizontal partition rod 4. By contacting the positioning block 31 with the horizontal partition rod 4, the partition rod 4 can be effectively restricted from turning upward and keeping it in a horizontal "split" state.

[0026] To further eliminate bubbles in poured concrete, Figure 8 As shown, the bottom end of the pouring pipe 3 extends into the poured concrete (preferably to a depth of 1m, which can be measured in real time by installing a laser rangefinder on the pouring pipe 3, so that the depth of the pouring pipe 3 extending into the concrete remains unchanged when the concrete liquid level continues to rise), and the dividing rod 4 is located below the liquid level of the poured concrete. After the pouring pipe 3 is inserted into the poured concrete, the bottom end of the pouring pipe 3 is always located below the concrete surface. By utilizing the gravity drop pressure during concrete pouring, the pressure enters the lower portion of the previously poured concrete through the grouting pipe 3, supporting the previously poured concrete and gradually rising along the steel pipe column. This process can effectively discharge bubbles in the concrete and the air in the steel pipe, and further improves the effect of discharging bubbles in the concrete by "dividing" the concrete through the upper dividing rod 4.

[0027] The principle of this application is: a dividing rod 4 is hinged at a circumferential interval at the bottom of the steel pipe. When pouring concrete, the pouring pipe 3 is inserted into the steel pipe and passed through the pouring hole 2a of the partition 2. The force of the torsion spring is used to keep the dividing rod 4 in a horizontal state, and then the concrete is poured. After pouring to a certain depth, the lower end of the pouring pipe 3 is extended into the concrete slurry, and then the pouring pipe 3 is lifted synchronously with the rise of the concrete liquid level. The gravity drop pressure during concrete pouring is used to enter the bottom of the previously poured concrete through the grouting pipe 3, and the previously poured concrete is supported and gradually rises along the steel pipe column. This process can effectively discharge the bubbles in the concrete and the air in the steel pipe, and at the same time "divide" the rising concrete through the dividing rod 4. When the dividing rod 4 rises to contact the casting hole 2a of the partition 2, the force of the torsion spring is overcome, driving the dividing rod 4 to flip downward, and then it can pass through the casting hole 2a. After the dividing rod 4 passes through the current partition 2, the force of the torsion spring is used to drive the dividing rod 4 to a horizontal state again.

[0028] The above shows and describes the basic principles, main features and advantages of this application. Without departing from the spirit and scope of this application, this application will also have various changes and improvements, which fall within the scope of this application.

Claims

1. A telescopic steel tube concrete column compacting device, wherein the steel tube (1) is provided with partitions (2) at intervals along its entire length, each partition (2) is provided with a pouring hole (2a), and a pouring pipe (3) is provided in the pouring hole (2a) for lifting and lowering, characterized in that: The compacting pouring device comprises a partition member which is arranged on the pouring pipe (3) and rises and falls synchronously with the pouring pipe (3), and the partition member is in contact with the poured concrete; The partitioning components are partitioning rods (4) hingedly arranged on the outer peripheral surface of the casting pipe (3) along the circumferential direction, and a torsion spring for driving the partitioning rod (4) to be in a horizontal state is provided at the hinged position of each partitioning rod (4).

2. The compaction pouring device according to claim 1, characterized in that: A positioning block (31) is also provided on the outer peripheral surface of the pouring pipe (3) and contacts each of the horizontal partition rods (4).

3. The compaction pouring device according to claim 2, characterized in that: The bottom end of the pouring pipe (3) extends into the poured concrete, and the dividing rod (4) is located below the liquid level of the poured concrete.

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