Pouring structure of concrete filled steel tubular column with diaphragm plate

Abstract

The utility model relates to a pouring structure of a concrete filled steel tubular column with a diaphragm plate, which belongs to the field of concrete filled steel tubular columns and comprises a steel tube body, the diaphragm plate and studs. A pouring hole is formed in the center of the transverse partition plate, and exhaust holes are formed in the periphery of the pouring hole. The hole diameter of the exhaust hole is smaller than that of the pouring hole; the stud avoiding pouring hole and the exhaust hole are welded to the lower end face of the transverse partition plate; the studs are welded to the lower end face of the transverse partition plate, so that the steel pipe and the concrete are firmly connected through the studs, the connection strength and shear resistance of the steel pipe and the concrete are remarkably enhanced, the overall bearing capacity and stability of the structure are improved, the safety and integrity of the structure in the stress process are guaranteed by limiting interface slippage, and the service life of the structure is prolonged. And a powerful guarantee is provided for the safety of structural engineering.

Description

Technical Field

[0001] The utility model belongs to the technical field of steel tube concrete columns, and in particular relates to a casting structure of a steel tube concrete column provided with a transverse diaphragm. Background Art

[0002] The basic principle of steel tube concrete column is to rely on the supporting effect of the inner filling concrete to enhance the stability of the steel tube. At the same time, the core concrete is "constrained" by the steel tube or called "hoop" effect, which makes the core concrete in a three-dimensional compressive stress state and delays the time of the generation and development of longitudinal micro cracks inside the concrete, so that the core concrete has stronger compressive strength and deformation resistance.

[0003] As an important internal reinforcement component of steel tube concrete columns, the role of diaphragms cannot be ignored. In steel tube concrete column structures, diaphragms enhance lateral stiffness, transfer loads, prevent relative slippage between concrete and steel tubes, and reduce tube wall stress and deformation. Diaphragms not only enhance the overall stiffness and stability of steel tubes, but also significantly improve the performance of steel tubes under complex load conditions. However, the presence of diaphragms also makes it easy for the concrete under the diaphragms to be poured loosely and become void when the steel tube concrete columns are cast, weakening the bearing capacity of the components and affecting structural safety. Summary of the Invention

[0004] In order to overcome the problems existing in the background technology, the utility model provides a casting structure of steel tube concrete columns provided with a cross diaphragm. By welding bolts on the lower end surface of the cross diaphragm, the bolts are firmly connected to the steel tube and the concrete, which significantly enhances the connection strength and shear resistance of the steel tube and the concrete. It not only improves the overall bearing capacity and stability of the structure, but also ensures the safety and integrity of the structure during the stress process by limiting interface slippage, providing a strong guarantee for the safety of structural engineering.

[0005] To achieve the above purpose, the present invention is implemented through the following technical solutions:

[0006] The casting structure of the steel tube concrete column with a transverse diaphragm includes a steel tube body, a transverse diaphragm and a bolt, and the transverse diaphragm is welded to the steel tube body; a casting hole is opened in the center of the transverse diaphragm, and an exhaust hole is opened on the periphery of the casting hole; the aperture of the exhaust hole is smaller than the casting hole; the bolt is welded to the lower end surface of the transverse diaphragm to avoid the casting hole and the exhaust hole.

[0007] Preferably, the exhaust holes are evenly distributed along the outer circumference of the casting hole for at least one circle.

[0008] Preferably, the bottom end of the bolt is provided with an anchoring connection block having a diameter larger than that of the bolt.

[0009] Preferably, a pouring pipe and an overflow pipe communicating with the interior of the steel pipe body are provided on the steel pipe body and below the transverse partition; the opening of the pouring pipe is arranged upward, and the opening of the overflow pipe is arranged downward.

[0010] Preferably, the steel pipe body is provided with a steel pipe side wall casting hole and an overflow pipe connecting hole, and the casting pipe and the overflow pipe are connected to the interior of the steel pipe body through the steel pipe side wall casting hole and the overflow pipe connecting hole respectively; the steel pipe side wall casting hole and the overflow pipe connecting hole are both equipped with patch blocks.

[0011] As a preferred method, the length of the stud exceeds the casting hole of the steel pipe side wall.

[0012] Preferably, the steel pipe side wall casting holes and the overflow pipe connection holes are both trapezoidal grooves.

[0013] Beneficial effects of the utility model:

[0014] The utility model welds bolts on the lower end face of the diaphragm so that the bolts firmly connect the steel pipe and the concrete, significantly enhancing the connection strength and shear resistance of the steel pipe and the concrete, which not only improves the overall bearing capacity and stability of the structure, but also ensures the safety and integrity of the structure during the stress-bearing process by limiting interface slippage, providing a strong guarantee for the safety of structural engineering.

[0015] The utility model provides exhaust holes on the periphery of the pouring hole. When pouring concrete, the exhaust holes play an exhaust role, which can reduce or avoid the generation of bubbles or cavities below the diaphragm and improve the pouring quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the overall structure of Example 1 of the present utility model;

[0017] Figure 2 This is a top view of the diaphragm structure of the utility model;

[0018] Figure 3 This is a bottom view of the diaphragm structure of the utility model;

[0019] Figure 4 This is a schematic diagram of the overall structure of Example 2 of the present utility model;

[0020] Figure 5 This is a schematic diagram of the connection structure between the patch and the steel pipe body in Example 2 of the present utility model;

[0021] Remark: Figure 5 In the figure, the left partial enlarged diagram is a schematic diagram of the structure before the patch is welded, and the right partial enlarged diagram is a schematic diagram of the structure after the patch is welded;

[0022] In the figure, 1-steel pipe body, 2-cross partition, 3-bolt, 4-casting hole, 5-vent hole, 6-anchor connection block, 7-casting pipe, 8-overflow pipe, 9-patch block, 10-weld, 11-concrete. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical solutions and beneficial effects of the present invention clearer, the preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings to facilitate understanding by technicians.

[0024] In the description of the present invention, unless otherwise specified, the terms "upper" and "lower" and the like indicate positions or state relationships based on the positions or state relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0025] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "connected," and "provided with" should be understood broadly. For example, they may refer to fixed, detachable, or integral connections; mechanical or electrical connections; and direct or indirect connections through an intermediary. Those skilled in the art will understand the specific meanings of these terms in this disclosure based on specific circumstances. Example 1

[0026] like Figure 1-3 As shown, the casting structure of the steel tube concrete column with a diaphragm includes a steel tube body 1, a diaphragm 2, and studs 3. The diaphragm 2 is welded to the steel tube body 1. A casting hole 4 is formed in the center of the diaphragm 2, and vent holes 5 are formed around the periphery of the casting hole 4. The vent holes 5 have a smaller diameter than the casting holes 4. The studs 3 are welded to the lower end surface of the diaphragm 2, avoiding the casting hole 4 and the vent holes 5. The studs 3 are evenly distributed on the lower end surface of the diaphragm 2.

[0027] By welding the bolts 3 on the diaphragm 2, after pouring the concrete, the bolts 3 are firmly consolidated with the concrete. At the same time, since the bolts 3 are welded to the diaphragm 2, and the diaphragm 2 is welded to the steel pipe body 1, the concrete and the steel pipe body 1 are firmly fixed, which effectively avoids the relative slippage between the concrete in the steel pipe and the steel pipe body 1, reduces the stress and deformation of the pipe wall of the steel pipe body 1, and enhances the connection strength and shear resistance of the steel pipe body 1 and the concrete 11. It not only improves the overall bearing capacity and stability of the steel pipe concrete column, but also ensures the safety and integrity of the steel pipe concrete column during the stress process by limiting interface slippage, providing a strong guarantee for the safety of structural engineering.

[0028] As a preferred embodiment, vent holes 5 are evenly distributed along at least one circle around the outer periphery of the pouring hole 4. By providing vent holes 5 on the diaphragm 2, the vent holes 5 serve to vent concrete when pouring through the pouring hole 4. Furthermore, concrete will escape through the vent holes 5 to the top of the diaphragm 2, reducing pouring resistance and allowing the gap below the diaphragm 2 to be fully filled while venting. Actual construction comparisons show that pouring resistance through the pouring hole 4 with and without vent holes 5 is significantly reduced, and the filling is more complete.

[0029] As a preferred solution, the bottom end of the bolt 3 is provided with an anchoring connection block 6 with a diameter larger than the bolt 3, so that the anchoring of the bolt to the concrete is more stable and the force transmission effect is better. Example 2

[0030] In this embodiment, based on embodiment 1, a pouring pipe 7 and an overflow pipe 8 are arranged below the transverse partition 2. The pipe mouth of the pouring pipe 7 is arranged upward, and the pipe mouth of the overflow pipe 8 is arranged downward. Correspondingly, a steel pipe side wall pouring hole and an overflow pipe connecting hole are opened on the steel pipe body 1. The pouring pipe 7 and the overflow pipe 8 are connected to the interior of the steel pipe body 1 through the steel pipe side wall pouring hole and the overflow pipe connecting hole respectively. The steel pipe side wall pouring hole and the overflow pipe connecting hole are both equipped with a patch block 9. The patch block 9 is used to seal the steel pipe side wall pouring hole and the overflow pipe connecting hole after the pouring pipe 7 and the overflow pipe 8 are removed.

[0031] After setting up the pouring pipe 7 and the overflow pipe 8, concrete can be poured in the following order: first pour through the pouring pipe 7. When pouring to the height of the pouring hole on the side wall of the steel pipe, remove the pouring pipe 7 and the overflow pipe 8, and use the patching plate 9 to block the pouring hole on the side wall of the steel pipe and the overflow pipe connecting hole and weld them to fix; then fill the gap below the diaphragm 2 with concrete through the pouring hole 4. This pouring method can significantly improve the pouring efficiency. During pouring, the pouring hole 4 plays a venting role, which can reduce the probability of bubbles and cavities in the concrete.

[0032] When the concrete poured through the pouring pipe 7 reaches the interface of the overflow pipe 8, concrete will flow out of the overflow pipe 8, indicating that the pouring height has reached the required level. The pouring through the pouring pipe 7 is immediately stopped, and the pouring pipe 7 and overflow pipe 8 are immediately removed. Two patch blocks 9 are then welded to the steel pipe sidewall pouring holes and the overflow pipe connection holes. After the patch blocks 9 are welded, the remaining concrete is immediately poured through the pouring holes 4 of the diaphragm 2, filling the bottom of the diaphragm 2 with concrete. The provision of the overflow pipe 8 allows for the timing of stopping pouring through the pouring pipe 7 and the welding of the patch blocks 9, ensuring construction continuity. Furthermore, when welding the patch blocks 9, no excess concrete flows out of the steel pipe sidewall pouring holes and the overflow pipe connection holes, reducing or eliminating the time required to clean the steel pipe sidewall pouring holes and the overflow pipe connection holes. After a simple cleaning, the patch blocks 9 can be welded directly, and concrete pouring can be resumed through the pouring holes 4 immediately after welding. This continuous pouring process ensures pouring quality while improving construction efficiency.

[0033] The length of the stud 3 exceeds the casting hole on the side wall of the steel tube. In this way, even if there is a difference in solidification time between the concrete cast through the casting tube 7 and the concrete cast through the casting hole 4 due to the casting time difference, and stratification occurs due to the difference in solidification time, the stud 3 plays a role in strengthening the connection strength of the two layers of concrete, thereby increasing the stability of the overall structure of the steel tube concrete column.

[0034] The steel pipe side wall pouring hole and the overflow pipe connecting hole are both trapezoidal grooves. Since welding can only be done on the outside after pouring concrete, by setting the trapezoidal groove, the patch plate 9 can be well connected with the steel pipe side wall pouring hole and the overflow pipe connecting hole during welding, and the welding quality is guaranteed.

[0035] Both the pouring pipe 7 and the overflow pipe 8 are made of rubber tubes, and the pouring holes on the side wall of the steel pipe and the overflow pipe connecting holes are set as circular holes: by utilizing the elasticity of rubber, the pouring pipe 7 and the pouring holes on the side wall of the steel pipe, and the overflow pipe 8 and the overflow pipe connecting holes can be sealed and connected by plugging. When the pouring pipe 7 and the overflow pipe 8 need to be removed, they can be pulled out quickly. Compared with the use of welded metal pipes, rubber tubes can significantly shorten the efficiency of pipe removal and insertion, and can be reused.

[0036] Finally, it should be noted that the above preferred embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail through the above preferred embodiments, those skilled in the art should understand that various changes can be made in form and details without departing from the scope defined by the claims of the present invention.

Claims

1. A casting structure of steel tube concrete columns with transverse diaphragms, characterized in that: The invention comprises a steel pipe body (1), a diaphragm (2) and a bolt (3), wherein the diaphragm (2) is welded to the steel pipe body (1); a casting hole (4) is provided at the center of the diaphragm (2), and an exhaust hole (5) is provided on the periphery of the casting hole (4); the diameter of the exhaust hole (5) is smaller than that of the casting hole (4); and the bolt (3) is welded to the lower end surface of the diaphragm (2) so as to avoid the casting hole (4) and the exhaust hole (5).

2. The casting structure of steel tube concrete column with diaphragm according to claim 1, characterized in that: The exhaust holes (5) are evenly distributed along the outer circumference of the pouring hole (4) for at least one circle.

3. The casting structure of steel tube concrete column with diaphragm according to claim 1, characterized in that: The bottom end of the bolt (3) is provided with an anchoring connection block (6) having a diameter larger than that of the bolt (3).

4. The casting structure of steel tube concrete column with diaphragm according to any one of claims 1 to 3, characterized in that: A pouring pipe (7) and an overflow pipe (8) communicating with the interior of the steel pipe body (1) are provided on the steel pipe body (1) and below the transverse diaphragm (2); the opening of the pouring pipe (7) is arranged upward, and the opening of the overflow pipe (8) is arranged downward.

5. The casting structure of steel tube concrete column with diaphragm according to claim 4, characterized in that: The steel pipe body (1) is provided with a steel pipe side wall pouring hole and an overflow pipe connection hole. The pouring pipe (7) and the overflow pipe (8) are respectively connected to the interior of the steel pipe body (1) through the steel pipe side wall pouring hole and the overflow pipe connection hole. The steel pipe side wall pouring hole and the overflow pipe connection hole are both equipped with a patch block (9).

6. The casting structure of steel tube concrete column with diaphragm according to claim 5, characterized in that: The length of the stud (3) exceeds the casting hole of the steel pipe side wall.

7. The casting structure of steel tube concrete column with diaphragm according to claim 5, characterized in that: The steel pipe side wall casting holes and overflow pipe connection holes are both trapezoidal grooves.

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