Beam column connecting structure of assembly type cross-layer prefabricated column

Abstract

The beam-column connecting structure comprises a rectangular steel pipe assembly located in a beam-column joint area, a plurality of welding ribs are welded to the peripheral sides of the inner walls of the two ends of a rectangular steel pipe in the rectangular steel pipe assembly respectively, and an upper inner partition plate and a lower inner partition plate are fixedly arranged in the rectangular steel pipe. Arc through holes are formed between four corners of the upper inner partition plate and the lower inner partition plate and the rectangular steel pipe; penetrating ribs are further arranged at the corners and the positions close to the corners of the rectangular steel pipes and penetrate through arc through holes in the four corners of the upper inner partition plate and the lower inner partition plate to penetrate through the beam-column connecting structures to connect the upper prefabricated column and the lower prefabricated column; a lug plate is welded to the side, connected with the beam end H-shaped steel, of the rectangular steel pipe, a web of the beam end H-shaped steel is fixedly connected with the lug plate, and the upper flange end and the lower flange end are fixedly connected with the rectangular steel pipe in a welded mode. The problems that the welding number of column longitudinal bars and rectangular steel pipes is large, and column corner longitudinal bars are difficult to overlap and weld on the two faces of the corners of the steel pipes are solved. Connection between the concrete prefabricated parts is converted into steel structure connection, and connection is simple, convenient and efficient.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of fabricated building, concretely relates to a beam column connecting structure of fabricated cross-layer prefabricated column. BACKGROUND

[0002] The cross-layer prefabricated column can reduce the number of templates produced in the factory, reduce the number of column-column splicing nodes at the construction site, and improve the integrity of the structure. With the improvement of industrialization level and transportation and hoisting capacity, the use of large-span prefabricated components is increasing.

[0003] In the prior art, the column longitudinal reinforcement is lap-welded on the outer wall of the steel pipe. Since the diameter of the reinforcement and the stirrup plus the required protective layer greatly weakens the cross section of the steel pipe, and the connecting node is a pure steel structure, the thickness of the rectangular steel pipe is increased, that is, the amount of steel is increased. When the column corner longitudinal reinforcement is welded with the rectangular steel pipe corner, the stress of the weld on both sides of the reinforcement is close, and when the rectangular steel pipe is formed by welding a steel plate, the welds overlap, which adversely affects the welding quality of the longitudinal reinforcement and the steel pipe. The welding work of all longitudinal reinforcements and steel pipe walls is extremely large, and it is also easy to cause stress concentration on the steel pipe wall, which adversely affects the performance of the rectangular steel pipe; the rectangular steel pipe at the upper and lower layer nodes is welded together by longitudinal reinforcement, and the stress generated by welding is not easy to release, which affects the performance of the longitudinal reinforcement.

[0004] In the prior art, the reinforcement and the stirrup are fixed to the outside of the steel pipe. First, it is difficult to determine the size before design, which makes it difficult to produce the rectangular steel pipe in a standardized and batched manner in the factory in advance; second, the column longitudinal reinforcement specifications are different due to different building structure stresses, which also makes it difficult to weld the column longitudinal reinforcement on the steel connecting piece in advance, which greatly affects the production and processing period and delivery cycle in the later stage; third, the connecting node domain cannot be poured in the factory with the prefabricated column at one time, but can only be poured at the construction site for the second time.

[0005] Therefore, how to reduce the amount of steel and improve the production and construction efficiency, while solving the problem of unreasonable structure and stress, has become a technical problem that needs to be solved by technical personnel in the field. CONTENT OF THE UTILITY MODEL

[0006] The main purpose of the utility model is to provide a beam column connecting structure of a fabricated cross-layer prefabricated column, which solves the problems in the above background technology.

[0007] To solve the above technical problems, the utility model adopts the following technical scheme: a rectangular steel pipe assembly is located at the beam column node domain, a plurality of welding reinforcements are welded on the inner wall circumferential side of the two ends of the rectangular steel pipe in the rectangular steel pipe assembly, an upper inner partition plate and a lower inner partition plate are fixedly arranged in the rectangular steel pipe, and a circular arc through hole is arranged between the four corners of the upper inner partition plate and the lower inner partition plate and the rectangular steel pipe.

[0008] The rectangular steel pipe corner is further provided with a penetrating rib, the penetrating rib is threaded through the arc through holes in the four corners of the upper and lower inner partition plates and penetrates the beam-column connecting structure to connect the upper and lower prefabricated columns;

[0009] An ear plate is welded on one side of the rectangular steel pipe connected with the beam end H-shaped steel, the web plate of the beam end H-shaped steel is fixedly connected with the ear plate, and the upper and lower flange ends are welded and fixed with the rectangular steel pipe.

[0010] Preferably, the diameter of the penetrating rib in the prefabricated column varies according to the reinforcement ratio.

[0011] Preferably, a plurality of column stirrups are bound between the multiple welding ribs at the two ends and the penetrating rib, and the multiple column stirrups are poured with concrete to form a concrete column.

[0012] Preferably, a grouting hole is arranged on the rectangular steel pipe and located between the upper and lower inner partition plates.

[0013] Preferably, the multiple welding ribs at the two ends of the rectangular steel pipe between the upper and lower layers are connected by bending or staggered lap joint in the layers.

[0014] Preferably, the web plate of the beam end H-shaped steel is externally provided with a connecting hole, and the connecting hole is connected and fixed with the through hole of the ear plate through a bolt during construction.

[0015] Preferably, the upper and lower inner partition plates are provided with protruding inner partition plate flanges on the circumferential sides, the inner partition plate flanges extend outside the rectangular steel pipe, and the upper and lower flanges of the beam end H-shaped steel are welded and fixed with the inner partition plate flanges.

[0016] Preferably, according to the orientation of the beam end H-shaped steel connected to the concrete column, the inner partition plate flanges on the inner partition plates are arranged to pass through the rectangular steel pipe, the inner partition plate flanges extend outside the concrete column and are welded and fixed with the upper and lower flanges of the beam end H-shaped steel.

[0017] The utility model provides a kind of beam-column connecting structure of assembly type cross-layer prefabricated column, and beneficial effect is:

[0018] 1, because the welding rib of column middle part longitudinal rib is double-sided lap joint welded inside rectangular steel pipe, and the penetrating rib of column corner longitudinal rib is also threaded inside rectangular steel pipe, so column longitudinal rib and hoop have no influence on node specification size, solve the problem that rectangular steel pipe assembly and welded longitudinal rib can be standardized design and then form standardized and mass production;

[0019] 2, change column steel reinforcement ratio by penetrating rib passing through rectangular steel pipe, solve the problem that welded rib can be welded in advance in factory in batches;

[0020] 3, welding rib does not pass through upper and lower inner partition plates, guarantee the stability of the whole node stress;

[0021] 4, steel pipe wall welding rib can increase the anchoring of rectangular steel pipe and concrete, solve the problem that upper and lower ends of steel pipe wall are easy to separate from concrete and affect stress.

[0022] 5. According to the construction requirement, the outer protective layer of the rectangular steel pipe assembly can be cast once with the prefabricated column in the factory, or can be cast twice at the installation site, which greatly increases the flexibility of construction. BRIEF DESCRIPTION OF DRAWINGS

[0023] The utility model will be further described below in combination with the drawings and embodiments:

[0024] Figure 1 is the overall connection explosion view of the utility model;

[0025] Figure 2 is the internal view of the concrete column of the utility model;

[0026] Figure 3 is the perspective view of the reinforcing bar and rectangular steel pipe connection of the utility model;

[0027] Figure 4 is the perspective view of the reinforcing bar and rectangular steel pipe connection of the utility model;

[0028] Figure 5 is the overall connection explosion view of another inner partition plate structure of the utility model;

[0029] Figure 6 is the internal perspective view of the concrete column of the utility model Figure 5 ;

[0030] Figure 7 is the perspective view of the reinforcing bar and rectangular steel pipe connection of the utility model Figure 5 ;

[0031] Figure 8 is the perspective view of the reinforcing bar and rectangular steel pipe connection of the utility model Figure 5 ;

[0032] Figure 9 is the schematic view of the cross-shaped beam connection inner partition plate of the utility model;

[0033] Figure 10 is the schematic view of the T-shaped beam connection inner partition plate of the utility model;

[0034] Figure 11 is the schematic view of the L-shaped beam connection inner partition plate of the utility model;

[0035] In the drawing: concrete column 1; rectangular steel pipe assembly 2; grouting hole 3; rectangular steel pipe 4; upper inner partition plate 401; lower inner partition plate 402; inner partition plate flange 403; column middle part longitudinal reinforcement 5; beam end H-shaped steel 6; reinforcing bar 8; reinforcing bar 9; column hoop 10; lug plate 11. DETAILED DESCRIPTION

[0036] Embodiment 1

[0037] As Figures 1-4 shown, a beam-column connection structure of a fabricated cross-layer prefabricated column comprises a rectangular steel tube assembly 2 located in a beam-column joint domain, a plurality of weld bars 8 are welded on the inner wall circumferential side of both ends of a rectangular steel tube 4 in the rectangular steel tube assembly 2, an upper inner partition plate 401 and a lower inner partition plate 402 are fixedly arranged in the rectangular steel tube 4, and circular arc through holes are arranged between the four corners of the upper inner partition plate 401 and the lower inner partition plate 402 and the rectangular steel tube 4.

[0038] The rectangular steel tube 4 is further provided with a penetrating bar 9, which penetrates through the circular arc through holes of the four corners of the upper inner partition plate 401 and the lower inner partition plate 402 to connect the upper and lower prefabricated columns.

[0039] An ear plate 11 is welded on one side of the rectangular steel tube 4 connected with the beam end H-shaped steel 6, the web of the beam end H-shaped steel 6 is fixedly connected with the ear plate 11, and the upper and lower flange end portions are welded and fixed with the rectangular steel tube 4.

[0040] The rectangular steel tube 4 at both ends in the cross-layer beam-column connection structure is connected with the nodes of the upper and lower layers through the weld bars 8 and the penetrating bars 9, and the ear plate 11 is welded on one side of the rectangular steel tube 4 connected with the beam end H-shaped steel 6, and the beam end H-shaped steel 6 is connected with the ear plate 11 for installation. The construction efficiency is improved by the prefabricated component, and the safety and durability of the building structure are enhanced by the multi-point reinforcement measures, which is suitable for the cross-layer connection in high-rise buildings.

[0041] Preferably, the diameter of the penetrating bar 9 in the prefabricated column varies according to the reinforcement ratio. The weld bars 8 of the column middle longitudinal reinforcement can be welded in batches in advance in the factory.

[0042] The diameter of the penetrating bar 9 needs to be determined according to the specific reinforcement ratio to ensure that it can bear the corresponding load and meet the structural strength requirements.

[0043] Preferably, a plurality of column stirrups 10 are tied between the plurality of weld bars 8 at both ends and the penetrating bar 9, and the concrete column 1 is formed by pouring concrete.

[0044] The column stirrups 10 are tied between the plurality of weld bars 8 at both ends and the penetrating bar 9, and the column middle longitudinal reinforcement 5 in the node of the upper and lower layers, and the concrete column 1 is formed by pouring concrete.

[0045] Preferably, the rectangular steel tube 4 is provided with a grouting hole 3, and the grouting hole 3 is located between the upper inner partition plate 401 and the lower inner partition plate 402.

[0046] When pouring the concrete column 1, the concrete or grouting material enters the interior of the rectangular steel tube assembly through the grouting hole 3, ensuring that the pouring is full of the entire node. By providing the grouting hole 3, it is ensured that the concrete or grouting material can be uniformly and fully filled into the interior of the rectangular steel tube assembly, avoiding the problems of cavities or non-dense, improving the integrity and bearing capacity of the node.

[0047] Preferably, the multiple weld bars 8 at both ends of the rectangular steel tube 4 between the upper and lower layers are connected by bending or staggered lap joint in the layer.

[0048] According to the layer height, the weld bars 8 of appropriate length are cut off, and are connected with the corresponding column middle longitudinal reinforcement 5 on the node of the upper and lower layers by bending or staggered lap joint, and are bound with the vertical column stirrup 10, and the concrete column 1 is formed by integral pouring.

[0049] The weld bars 8 of the upper and lower layers are connected by bending or staggered lap joint, reducing the lap joint rate of the same section, and further reducing the lap joint length, which is more easy to meet the specification requirements.

[0050] Preferably, the web of the beam end H-shaped steel 6 is provided with a connecting hole, and the connecting hole is connected and fixed with the through hole on the lug plate 11 by a bolt during construction.

[0051] This design simplifies the construction process, reduces the workload of on-site adjustment, improves the construction efficiency and quality consistency. Especially in high-rise buildings, the construction period can be significantly shortened. Through reasonable structural design and construction technology, the integrity and bearing capacity of the building structure are ensured, and the safety of the building can be effectively guaranteed under extreme conditions such as earthquakes.

[0052] Embodiment 2

[0053] As shown in Figures 5-11 The upper and lower inner partition plates 401 and 402 are provided with protruding inner partition plate flanges 403 on the side, the inner partition plate flanges 403 extend outside the rectangular steel tube 4, and the upper and lower flanges of the beam end H-shaped steel 6 are welded and fixed with the inner partition plate flanges 403. The web of the beam end H-shaped steel 6 is connected and fixed with the lug plate 11 welded on the rectangular steel tube 4 by a bolt.

[0054] Through the combined connection mode of the inner partition plate flange 403, the lug plate 11 and the beam end H-shaped steel 6, the integrity and stability between the concrete column 1 and the beam end H-shaped steel 6 are significantly enhanced. The connection node adopts the combination of mortise and tenon connection and welding, which ensures the quality consistency of each component, reduces the difficulty of on-site construction, and improves the engineering quality.

[0055] Preferably, according to the orientation of the beam end H-shaped steel 6 connected on the concrete column 1, the inner partition plate flanges 403 on the inner partition plate are provided to pass through the rectangular steel tube 4, and the inner partition plate flanges 403 extend out of the concrete column 1 and are welded and fixed with the upper and lower flanges of the beam end H-shaped steel 6.

[0056] According to 9~11, according to the beam-column connection includes cross, T-shaped, L-shaped, according to the corresponding beam connection direction setting on the inner partition plate flange 403 of the partition plate through the rectangular steel pipe 4, so that the upper and lower flanges of the beam end H-shaped steel 6 are welded and fixed with the inner partition plate flange 403.

[0057] The above-mentioned embodiments are only preferred technical solutions of the present application, and should not be regarded as limiting the present application. The protection scope of the present application should be based on the technical solutions claimed in the claims, including the equivalent replacement solutions of the technical features in the technical solutions claimed in the claims. That is, the equivalent replacement improvement within this range is also within the protection scope of the present application.

Claims

1. A beam-column connection structure for prefabricated multi-story columns, characterized in that: The application relates to a rectangular steel pipe assembly (2) arranged at a beam-column joint area, a plurality of welding ribs (8) are welded on the inner wall of both ends of a rectangular steel pipe (4) in the rectangular steel pipe assembly (2), an upper inner partition plate (401) and a lower inner partition plate (402) are fixedly arranged in the rectangular steel pipe (4), and arc through holes are arranged between the four corners of the upper inner partition plate (401) and the lower inner partition plate (402) and the rectangular steel pipe (4). The rectangular steel pipe (4) is further provided with a penetrating rib (9) arranged at the corner of the rectangular steel pipe (4), the penetrating rib (9) penetrates the arc through holes of the four corners of the upper inner partition plate (401) and the lower inner partition plate (402), and the penetrating rib (9) is connected with the upper and lower prefabricated columns through a beam-column connecting structure; An ear plate (11) is welded on one side of the rectangular steel pipe (4) connected with a beam-end H-shaped steel (6), the web plate of the beam-end H-shaped steel (6) is fixedly connected with the ear plate (11), and the upper and lower flange end portions are welded and fixed with the rectangular steel pipe (4).

2. The beam-column connection structure of the prefabricated cross-layer column assembly of claim 1, characterized in that: The diameter of the penetrating rib (9) in the prefabricated column is changed according to the reinforcement ratio.

3. The beam-column connection structure of the prefabricated cross-layer column assembly of claim 1, characterized in that: A plurality of column stirrups (10) are bound between the plurality of welding ribs (8) at both ends and the penetrating rib (9), and the column stirrups (10) are used for pouring concrete to form a concrete column (1).

4. The beam-column connection structure of the prefabricated cross-layer column assembly of claim 1, characterized in that: The rectangular steel pipe (4) is provided with a grouting hole (3) arranged between the upper inner partition plate (401) and the lower inner partition plate (402).

5. The beam-column connection structure of the prefabricated cross-layer column assembly as claimed in claim 1, characterized in that: The plurality of welding ribs (8) at both ends of the rectangular steel pipe (4) between the upper and lower layers are connected through bending or are overlapped in a staggered mode in the layers.

6. The beam-column connection structure of the prefabricated cross-layer column assembly as claimed in claim 1, characterized in that: The web plate of the beam-end H-shaped steel (6) is provided with a connecting hole, and the connecting hole is connected and fixed with a through hole in the ear plate (11) through a bolt during construction.

7. The beam-column connection structure of the prefabricated cross-layer column assembly as claimed in claim 1, characterized in that: The upper inner partition plate (401) and the lower inner partition plate (402) are provided with protruding inner partition plate flanges (403) on the peripheral sides, the inner partition plate flanges (403) extend out of the rectangular steel pipe (4), and the upper and lower flanges of the beam-end H-shaped steel (6) are welded and fixed with the inner partition plate flanges (403).

8. The beam-column connection structure of the prefabricated cross-layer column assembly of claim 7, characterized in that: According to the orientation of the beam-end H-shaped steel (6) connected with the concrete column (1), the inner partition plate flanges (403) on the inner partition plates are arranged to penetrate the rectangular steel pipe (4), the inner partition plate flanges (403) extend out of the concrete column (1), and the upper and lower flanges of the beam-end H-shaped steel (6) are welded and fixed with the inner partition plate flanges (403).

Images