Concrete filled steel tubular column with exhaust flow guide pipe, lattice structure and steel structure plant

Abstract

The concrete-filled steel tube column comprises a steel tube column body, a plurality of air holes are formed in the upper portion of the steel tube column body, an exhaust flow guide steel tube is arranged at each air hole, one end of each exhaust flow guide steel tube is communicated with the interior of the steel tube column body, and the other end of each exhaust flow guide steel tube is communicated with the interior of the steel tube column body. The other end of the exhaust flow guide steel pipe obliquely extends upwards towards the outer portion of the steel pipe column body, the end portion of the exhaust flow guide steel pipe is higher than the end face of the top of the steel pipe column body, and concrete is poured into the steel pipe column body. According to the concrete-filled steel tube column, ventilation of jacking grouting in the steel tube column body is guaranteed by designing the exhaust flow guide steel tube, meanwhile, the end of the exhaust flow guide steel tube is designed to be higher than the top end face of the steel tube column body, compactness of concrete in the steel tube column body is guaranteed, and it is guaranteed that loads of a crane beam support can be directly transmitted to the concrete part of the concrete-filled steel tube column; safety and reliability.

Description

Technical Field

[0001] This utility model belongs to the field of building construction technology, specifically relating to a steel-concrete composite column with an exhaust guide pipe, a lattice structure, and a steel structure factory building. Background Technology

[0002] Concrete-filled steel tube columns effectively combine the advantages of both steel and concrete. The steel tube provides lateral restraint to the infill concrete, improving the compressive strength of the concrete and compensating for its weak tensile strength. The concrete filling prevents local buckling of the steel tube. The overall load-bearing capacity far exceeds the sum of the two materials alone. Its excellent stress performance and economy make concrete-filled steel tube columns widely used in industrial and civil buildings.

[0003] In steelmaking and continuous casting plants, especially rolling mills, steel-concrete composite columns are frequently used as the lower columns in a lattice structure. The shoulder beam web is inserted into the steel pipe and concrete of the lower column. The steel pipe components are prefabricated in the factory, and the concrete is then poured on-site. To ensure the concrete is densely poured, holes are typically made near the bottom of the steel pipe column, and the concrete is poured using a pumping and jacking method. Ventilation holes are also made at the top of the steel pipe column. However, because the top cover plate of the crane limb shoulder beam needs to support the crane beam support pad, and the top cover plate of the roof limb shoulder beam needs to support the vertical support brackets of the longitudinal wall columns, and given that the diameter of the lower column limbs in continuous casting and rolling mills is generally small, it is difficult to find suitable and sufficient space on both sides of the shoulder beam web to create vent holes at the top of the column. Even if there are vent holes in the top cover plate of the shoulder beam, the overflowing concrete after grouting will flow down the steel pipe. If it is not cleaned in time, it will affect the welding of the spring plate and the walkway beam or support on the outside of the steel pipe, which are longitudinally connected to the crane beam and the top cover plate. In addition, it will be difficult to clean it later, affecting the aesthetics. If vent holes are opened on the outside of the steel pipe near the top of the column, it will be difficult to ensure the compactness of the concrete under the top cover plate of the shoulder beam, which will affect the force transmission of the crane beam support and leave a safety hazard. Utility Model Content

[0004] The purpose of this invention is to provide a steel-concrete composite column with an exhaust guide pipe, which can at least solve some of the defects existing in the prior art.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A steel-concrete composite column with an exhaust guide pipe includes a steel pipe column body. Several air holes are opened in the upper part of the steel pipe column body, and an exhaust guide steel pipe is provided at each air hole. One end of the exhaust guide steel pipe is connected to the interior of the steel pipe column body, and the other end of the exhaust guide steel pipe extends upward and inclined to the outside of the steel pipe column body. The height of the end of the exhaust guide steel pipe is higher than the height of the top end face of the steel pipe column body. Concrete is poured into the steel pipe column body.

[0007] Furthermore, an exhaust guide hose is connected to one end of the exhaust guide steel pipe away from the steel pipe column, and the end of the exhaust guide hose extends down to the ground.

[0008] Furthermore, the inclination angle of the exhaust guide steel pipe is 30°-60°.

[0009] Furthermore, the vent is located 100-400mm from the top of the steel pipe column.

[0010] Furthermore, the exhaust guide steel pipe is welded to the outer wall of the steel pipe column, and the diameter of the exhaust guide steel pipe is larger than the diameter of the air hole.

[0011] Furthermore, the steel-concrete composite column with exhaust guide pipe also includes a shoulder beam web, one end of which is inserted perpendicularly to the axis of the steel-concrete column into the concrete at the top of the steel-concrete column.

[0012] Furthermore, there are four exhaust guide steel pipes, located on both sides of the shoulder beam web.

[0013] In addition, this utility model also provides a lattice structure, including a crane beam, a crane beam support pad, a shoulder beam cover plate, and the aforementioned steel pipe concrete column with an exhaust guide pipe. The shoulder beam cover plate is placed on the top of the steel pipe column, the crane beam support pad is placed on the shoulder beam cover plate, the bottom of the crane beam is supported by the crane beam support pad, and the bottom of the crane beam is connected to the shoulder beam cover plate through a spring plate.

[0014] This utility model also provides a steel structure factory building, which adopts the above-mentioned lattice structure.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0016] (1) The steel-concrete composite column with exhaust guide pipe provided by this utility model ensures the air permeability of the grouting inside the steel-concrete composite column by designing the exhaust guide steel pipe. At the same time, the height of the end of the exhaust guide steel pipe is designed to be higher than the height of the top end face of the steel-concrete composite column, which ensures the compactness of the concrete inside the steel-concrete composite column and ensures that the load of the crane beam support can be directly transferred to the concrete part of the steel-concrete composite column, which is safe and reliable.

[0017] (2) In the steel pipe concrete column with exhaust guide pipe provided by this utility model, by connecting exhaust guide hose to exhaust guide steel pipe and letting exhaust guide hose hang down to the ground, the overflowing concrete during grouting can be sent to the ground, and will not spill onto the shoulder beam cover plate or column body, and will not affect the welding of other structural components. At the same time, no personnel are needed to clean up at high altitude, which is both clean and saves cleaning costs.

[0018] The present invention will be further described in detail below with reference to the accompanying drawings. Attached Figure Description

[0019] Figure 1 This is a structural schematic diagram of a steel-concrete composite column with an exhaust guide pipe according to this utility model.

[0020] Explanation of reference numerals in the attached drawings: 1. Steel pipe column; 2. Exhaust guide steel pipe; 3. Exhaust guide hose; 4. Shoulder beam web; 5. Shoulder beam top cover plate; 6. Spring plate; 7. Crane beam support pad; 8. Crane beam. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0022] In the description of this utility model, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0023] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation", "connection" and "joining" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, abutting connections, or integral connections. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0024] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature; in the description of this utility model, unless otherwise stated, "a plurality of" or "several" means two or more.

[0025] like Figure 1As shown, this embodiment provides a steel-concrete composite column with an exhaust guide pipe, including a steel pipe column body 1. Several air holes are opened in the upper part of the steel pipe column body 1, and an exhaust guide steel pipe 2 is provided at each air hole. One end of the exhaust guide steel pipe 2 is connected to the interior of the steel pipe column body 1, and the other end of the exhaust guide steel pipe 2 extends obliquely upwards outwards from the steel pipe column body 1. The height of the end of the exhaust guide steel pipe 2 is higher than the height of the top end face of the steel pipe column body 1. Concrete is poured inside the steel pipe column body 1. In this embodiment, the steel pipe column body 1 can be prefabricated in a factory, and the exhaust guide steel pipe 2 can be prefabricated together with the steel pipe column body 1 in the factory to form an integral structure. Alternatively, the exhaust guide steel pipe 2 and the steel pipe column body 1 can be designed as separate structures. The exhaust guide steel pipe 2 is installed on the steel pipe column body 1 at the construction site according to the grouting construction conditions, and the concrete is poured at the construction site using a pumping and jacking method. This embodiment provides an exhaust and diversion steel pipe 2 installed on the steel pipe column 1 to ensure the air permeability of the grouting inside the steel pipe column 1. At the same time, the end height of the exhaust and diversion steel pipe 2 is designed to be higher than the top end face height of the steel pipe column 1, ensuring the compactness of the concrete poured inside the steel pipe column 1. This ensures that when it is used in a steel rolling mill, the load of the crane beam support can be directly transferred to the concrete part of the steel pipe concrete column, which is safe and reliable.

[0026] In an optimized implementation, an exhaust guide hose 3 is connected to the end of the exhaust guide steel pipe 2 away from the steel pipe column 1, and the end of the exhaust guide hose 3 extends down to the ground. This allows the overflowing concrete during grouting to be discharged to the ground, preventing it from spilling onto the shoulder beam cover plate or column body, thus avoiding affecting the welding of subsequent structural components (such as spring plates or walkway beams). It also eliminates the need for personnel to clean up from heights, resulting in a clean and tidy environment while saving on cleaning costs.

[0027] Preferably, the inclination angle of the exhaust guide steel pipe 2 is 30°-60°. The angle is adjusted according to the width of the cover plate on the shoulder beam at the top of the steel pipe concrete column during subsequent construction, so as to optimize the exhaust effect during jacking grouting and thus ensure the compactness of the poured concrete. The air hole is opened at a distance of 100-400mm from the top of the steel pipe column 1, preferably 200mm from the top of the steel pipe column 1.

[0028] In some embodiments, the diameter of the exhaust guide steel pipe 2 is designed to be larger than the diameter of the vent. For example, the diameter of the vent on the steel pipe column 1 is designed to be 50mm, and the diameter of the exhaust guide steel pipe 2 is 60mm. At the same time, the exhaust guide steel pipe 2 is welded to the outer wall of the steel pipe column 1. The installation of the exhaust guide steel pipe 2 can be carried out in batches according to the on-site construction conditions of the steel pipe column 1 and grouting. The exhaust guide steel pipe 2 has a small cross-section and short length, resulting in less steel consumption. After grouting, the exhaust guide steel pipe 2 can be cut off and reused and recycled. Small steel plates can be welded to the vents for sealing and reinforcement, which can effectively save costs.

[0029] In some embodiments, the steel-concrete composite column with exhaust guide pipes further includes a shoulder beam web 4, one end of which is inserted perpendicularly to the axis of the steel-concrete column 1 into the concrete at the top of the steel-concrete column 1. Specifically, four exhaust guide steel pipes 2 may be designed, located on both sides of the shoulder beam web 4, with two exhaust guide steel pipes 2 arranged on each side, and the exhaust guide steel pipes 2 on both sides are symmetrically arranged about the shoulder beam web 4 to ensure the uniformity of grouting on both sides of the shoulder beam web 4 inside the steel-concrete column 1.

[0030] In addition, this embodiment also provides a lattice structure, such as Figure 1 As shown, the structure includes a crane beam 8, a crane beam support plate 7, a shoulder beam top cover plate 5, and the aforementioned steel-concrete composite column with an exhaust pipe. The steel-concrete composite column with the exhaust pipe serves as a limb of the lower column in the lattice structure. The two ends of the shoulder beam web 4 are vertically inserted into the concrete within the two steel-concrete composite columns 1. The shoulder beam top cover plate 5 is placed on top of the two steel-concrete composite columns 1 and the shoulder beam web 4. The crane beam support plate 7 is placed on the shoulder beam top cover plate 5. The bottom of the crane beam 8 is supported by the crane beam support plate 7, and the bottom of the crane beam 8 is connected to the shoulder beam top cover plate 5 via a spring plate 6. This lattice structure can be used to construct steel structure workshops, such as steel rolling mills.

[0031] In summary, the steel-concrete composite column with an exhaust guide pipe provided by this utility model ensures the permeability of the grouting during the lifting process within the steel-concrete composite column by designing the exhaust guide pipe. At the same time, the height of the end of the exhaust guide pipe is designed to be higher than the height of the top end face of the steel-concrete composite column, ensuring the compactness of the concrete within the steel-concrete composite column and guaranteeing that the load of the crane beam support can be directly transferred to the concrete part of the steel-concrete composite column, making it safe and reliable.

[0032] The above examples are merely illustrative of the present invention and do not constitute a limitation on the scope of protection of the present invention. All designs that are the same as or similar to the present invention are within the scope of protection of the present invention.

Claims

1. A steel-concrete composite column with an exhaust conduit, characterized in that: The system includes a steel pipe column, with several air holes opened on the upper part of the steel pipe column. Each air hole is provided with an exhaust guide steel pipe. One end of the exhaust guide steel pipe is connected to the interior of the steel pipe column, and the other end of the exhaust guide steel pipe extends upward and inclined to the outside of the steel pipe column. The height of the end of the exhaust guide steel pipe is higher than the height of the top end face of the steel pipe column. Concrete is poured inside the steel pipe column.

2. The steel-concrete composite column with an exhaust guide pipe as described in claim 1, characterized in that: The exhaust guide steel pipe is connected to an exhaust guide hose at one end away from the steel pipe column, and the end of the exhaust guide hose extends down to the ground.

3. The steel-concrete composite column with an exhaust guide pipe as described in claim 1, characterized in that: The inclination angle of the exhaust guide steel pipe is 30°-60°.

4. The steel-concrete composite column with an exhaust guide pipe as described in claim 1, characterized in that: The vent is located 100-400 mm from the top of the steel pipe column.

5. The steel-concrete composite column with an exhaust guide pipe as described in claim 1, characterized in that: The exhaust guide steel pipe is welded to the outer wall of the steel pipe column, and the diameter of the exhaust guide steel pipe is larger than the diameter of the air hole.

6. The steel-concrete composite column with an exhaust guide pipe as described in any one of claims 1-5, characterized in that: It also includes a shoulder beam web, one end of which is inserted perpendicularly to the axis of the steel pipe column into the concrete at the top of the steel pipe column.

7. The steel-concrete composite column with an exhaust guide pipe as described in claim 6, characterized in that: There are four exhaust guide steel pipes, located on both sides of the shoulder beam web.

8. A lattice structure, characterized in that: The system includes a crane beam, a crane beam support pad, a shoulder beam cover plate, and a steel-concrete composite column with an exhaust pipe as described in claim 6 or 7. The shoulder beam cover plate is placed on top of the steel-concrete composite column, the crane beam support pad is placed on the shoulder beam cover plate, the bottom of the crane beam is supported by the crane beam support pad, and the bottom of the crane beam is connected to the shoulder beam cover plate through a spring plate.

9. A steel structure factory building, characterized in that: The lattice structure described in claim 8 is adopted.

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