Steel tube steel reinforced concrete, steel reinforced concrete and reinforced concrete splicing column

Abstract

The utility model belongs to the technical field of building structures, and particularly relates to a steel tube steel reinforced concrete, steel reinforced concrete and reinforced concrete splicing column which comprises a steel tube steel reinforced concrete column, a steel reinforced concrete column and a reinforced concrete column which are sequentially spliced from bottom to top. Wherein the steel tube steel reinforced concrete column and the steel reinforced concrete column are connected and fixed through a first splicing part and first post-pouring concrete poured on the first splicing part, and the steel reinforced concrete column and the reinforced concrete column are connected and fixed through a second splicing part and second post-pouring concrete poured on the second splicing part; the first splicing part and the second splicing part are connected in an indirect connection mode or a direct connection mode of an additional steel plate. According to the utility model, flexible adjustment can be carried out according to needs, the flexibility and adaptability of construction are improved, the bearing capacity of the component can be locally enhanced, the stability and safety of the whole structure are improved, the anti-seismic effect is better, and particularly, the anti-seismic structure has obvious advantages in anti-seismic design.

Description

TECHNICAL FIELD

[0001] The utility model belongs to building structure technical field, concretely relates to a steel pipe type steel concrete and steel concrete and reinforced concrete splicing column. BACKGROUND

[0002] With the development of the construction industry, there are many super high-rise buildings, heavy load structures, large span structures, and traditional concrete structures and steel structures cannot meet the use and stress requirements, so steel-concrete composite structures appear, which have achieved good economic and social benefits in practical engineering applications. With the development of steel pipe concrete and steel concrete structure design theory and the increasing application, a steel pipe type steel concrete structure with higher bearing capacity and superior seismic performance appears. This structure is used as a bearing component in the bearing component or part of the bearing component of the structure system, which solves many practical problems that cannot be solved by concrete structures, steel structures and steel-concrete composite structures.

[0003] The steel pipe type steel concrete structure is a combination structure formed by first setting a steel pipe in the steel pipe and then pouring concrete into it. The internal concrete changes from single-direction stress to three-direction stress under the constraint of the external steel pipe, and the internal steel pipe increases the shear capacity and seismic ductility of the component. Therefore, the steel pipe type steel concrete structure has the advantages of high bearing capacity, large stiffness, good seismic ductility and energy dissipation capacity, and has a broad application prospect in super high-rise buildings, large span structures, heavy structures and other structure systems.

[0004] However, the bottom layer of the building structure requires a large bearing capacity, and as the number of building stories increases, the bearing capacity requirement gradually decreases, so using a steel pipe type steel concrete structure alone will cause performance waste and waste of materials, increasing the engineering cost. INVENTION CONTENTS

[0005] Based on the above problems, the utility model provides a steel pipe type steel concrete and steel concrete and reinforced concrete splicing column, that is, considering the large bearing capacity of the building bottom layer, setting a steel pipe type steel concrete column, as the number of building stories increases, the bearing capacity decreases, setting a steel concrete column, and then increasing the number of stories and setting a reinforced concrete column.

[0006] The technical scheme adopted by the utility model is as follows: a steel pipe type steel concrete and steel concrete and reinforced concrete splicing column, comprising: a steel pipe type steel concrete column, a steel concrete column and a reinforced concrete column which are spliced in sequence from bottom to top.

[0007] The steel pipe type steel concrete column and the steel concrete column are connected and fixed by the first splicing part and the first post-poured concrete poured in the first splicing part, and the steel concrete column and the reinforced concrete column are connected and fixed by the second splicing part and the second post-poured concrete poured in the second splicing part.

[0008] The first splicing part and the second splicing part are connected by an indirect connection mode of additional steel plates or a direct connection mode.

[0009] When the indirect connection mode of additional steel plates is adopted, the first splicing part comprises:

[0010] A first steel plate located at the top end of the steel pipe type steel concrete column and welded with the first type steel in the steel pipe type steel concrete column;

[0011] A first detachable grouter embedded at the top end of the steel pipe type steel concrete column;

[0012] A first longitudinal reinforcement and a second type steel located in the steel concrete column, a first connecting longitudinal reinforcement and a first connecting type steel respectively formed by extending outward from the bottom thereof, and a second steel plate welded with the end of the first connecting type steel;

[0013] The first steel plate and the second steel plate are fixed by bolt connection, the first connecting longitudinal reinforcement is inserted into the first detachable grouter and fixed by pouring the first post-poured concrete into the first detachable grouter;

[0014] The second splicing part comprises:

[0015] A third steel plate located at the top end of the steel concrete column and fixedly welded with the second type steel in the steel concrete column;

[0016] A second longitudinal reinforcement located in the reinforced concrete column, a second connecting longitudinal reinforcement and a concrete protrusion formed by extending outward from the bottom of the second longitudinal reinforcement, and an anchor reinforcement embedded in the concrete protrusion with one end extending into the reinforced concrete column and the other end welded with a fourth steel plate;

[0017] The third steel plate and the fourth steel plate are fixed by bolt connection, and the second connecting longitudinal reinforcement is fixedly bound with the first longitudinal reinforcement of the steel concrete column;

[0018] When the direct connection mode is adopted, the first splicing part comprises:

[0019] A steel pipe and a first type steel located in the steel pipe type steel concrete column, a straight connecting steel pipe and a first straight connecting type steel respectively formed by extending outward from the top end thereof, and a second detachable grouter embedded at the top end of the steel pipe type steel concrete column;

[0020] A first longitudinal reinforcement and a second type steel located in the steel concrete column, a first straight connecting longitudinal reinforcement and a second straight connecting type steel respectively formed by extending outward from the bottom end thereof;

[0021] The straight connection steel pipe is inserted with the bottom of the steel reinforced concrete column;

[0022] The first straight connection steel and the second straight connection steel are butted, the flange butt joint of the two is provided with a flange connection steel plate, the web butt joint is provided with a web connection steel plate, the flange connection steel plate is connected and fixed with the flange butt joint of the first straight connection steel and the second straight connection steel by means of bolt connection, and the web connection steel plate is connected and fixed with the web butt joint of the first straight connection steel and the second straight connection steel;

[0023] The first straight connection longitudinal reinforcement is inserted into the second detachable grouting device and fixed by pouring the first post-cast concrete into the second detachable grouting device;

[0024] The second splicing part comprises:

[0025] The first longitudinal reinforcement and the second steel in the steel reinforced concrete column extend outward from the top end to form the second straight connection longitudinal reinforcement and the third straight connection steel respectively;

[0026] The second longitudinal reinforcement in the reinforced concrete column, the third straight connection longitudinal reinforcement formed by extending outward from the bottom end of the second longitudinal reinforcement, and the groove at the bottom of the reinforced concrete column;

[0027] The second straight connection longitudinal reinforcement and the third straight connection longitudinal reinforcement are tied, and the third straight connection steel is inserted with the groove.

[0028] The two splicing methods provided by the utility model can splice the steel pipe steel reinforced concrete column, the steel reinforced concrete column and the reinforced concrete column into a whole. The splicing column has more advantages than the steel pipe steel reinforced concrete structure, the steel reinforced concrete structure and the reinforced concrete structure, mainly embodied in that:

[0029] (1) Construction flexibility. Convenient transportation: can be transported in multiple parts, especially in the case of large components difficult to transport, more convenient to assemble on site. Strong adaptability: in complex building environment, can be flexibly adjusted according to needs, improve the flexibility and adaptability of construction.

[0030] (2) Cost-effective. Save materials: can optimize the allocation of materials according to specific needs, reduce unnecessary material waste, thereby reducing the overall cost. Short construction period: due to smaller components, can speed up construction progress, shorten construction period and reduce labor cost.

[0031] (3) Structural performance. Bearing capacity: can enhance the bearing capacity of local components, improve the stability and safety of the overall structure. Damping effect: achieve better damping effect, especially in seismic design with obvious advantages.

[0032] (4) Maintenance and repair. Easy to repair: so that a part can be replaced or repaired individually after damage, reduce the overall maintenance cost. Easy to detect: can be easier to detect structure, once the problem can be quickly located and solved. BRIEF DESCRIPTION OF DRAWINGS

[0033] Figure 1 The structural schematic view of the first embodiment of the utility model is shown in the figure;

[0034] Figure 2 The structural schematic view of the second embodiment of the utility model is shown in the figure;

[0035] Figure 3 The structural schematic view of the steel pipe type steel concrete column in the first embodiment is shown in the figure;

[0036] Figure 4 The cross-sectional schematic view of the steel pipe type steel concrete column in the first embodiment is shown in the figure;

[0037] Figure 5 The structural schematic view of the steel concrete column in the first embodiment is shown in the figure;

[0038] Figure 6 The cross-sectional schematic view of the steel concrete column in the first embodiment is shown in the figure;

[0039] Figure 7 The structural schematic view of the reinforced concrete column in the first embodiment is shown in the figure;

[0040] Figure 8 The cross-sectional schematic view of the reinforced concrete column in the first embodiment is shown in the figure;

[0041] Figure 9 The structural schematic view of the steel pipe type steel concrete column in the second embodiment is shown in the figure;

[0042] Figure 10 The structural schematic view of the steel concrete column in the second embodiment is shown in the figure;

[0043] Figure 11 The structural schematic view of the reinforced concrete column in the second embodiment is shown in the figure;

[0044] Figure 12 The connection schematic view of the first straight type steel and the second straight type steel in the second embodiment is shown in the figure;

[0045] Figure 13 The top view of Figure 12 is shown in the figure;

[0046] In the figure: 1, steel pipe type steel concrete column; 2, type steel concrete column; 3, reinforced concrete column; 4, steel pipe; 5, first type steel; 6, first concrete; 7, first shear connector; 8, first longitudinal reinforcement; 9, first stirrup; 10, second type steel; 11, second concrete; 12, second shear connector; 13, second longitudinal reinforcement; 14, second stirrup; 15, third concrete; 16, first steel plate; 17, first detachable grouting device; 18, first connecting longitudinal reinforcement; 19, first connecting type steel; 20, second steel plate; 21, third steel plate; 22, second connecting longitudinal reinforcement; 23, concrete protrusion; 24, anchor bar; 25, fourth steel plate; 26, straight connecting steel pipe; 27, first straight connecting type steel; 28, second detachable grouting device; 29, first straight connecting longitudinal reinforcement; 30, second straight connecting type steel; 31, flange connecting steel plate; 32, web connecting steel plate; 33, connecting bolt; 34, third straight connecting type steel; 35, second straight connecting longitudinal reinforcement; 36, third straight connecting longitudinal reinforcement; 37, groove; 38, first post-cast concrete; 39, second post-cast concrete. DETAILED DESCRIPTION

[0047] The technical scheme adopted by the utility model will be clearly and completely explained below in connection with the drawings of the specification and specific embodiments;

[0048] As Figures 1-2 shown in the figure, the utility model provides a kind of steel pipe type steel concrete and type steel concrete and reinforced concrete spliced column, which is composed of steel pipe type steel concrete column 1 located at bottom and type steel concrete column 2 located at middle and reinforced concrete column 3 located at top in turn splicing.

[0049] Wherein: steel pipe type steel concrete column 1 includes steel pipe 4 and first type steel 5 located in steel pipe 4 and first concrete 6 poured between steel pipe 4 and first type steel 5, and the inner wall of steel pipe 4 and first type steel 5 are all welded with multiple first shear connectors 7, to resist the shear force suffered by steel pipe type steel concrete column 1, and improve the bonding strength between steel pipe 4 and first type steel 5 and first concrete 6.

[0050] Type steel concrete column 2 includes first reinforcement cage composed of first longitudinal reinforcement 8 and first stirrup 9 and second type steel 10 located in first reinforcement cage, and second concrete 11 poured between first reinforcement cage and second type steel 10, and multiple second shear connectors 12 are welded on second type steel 10, to resist the shear force suffered by type steel concrete column 2, and improve the bonding strength between first reinforcement cage and second type steel 10 and second concrete 11.

[0051] Reinforced concrete column 3 includes reinforcement cage composed of second longitudinal reinforcement 13 and second stirrup 14 and third concrete 15 poured in reinforcement cage.

[0052] In addition, it needs to be explained that the cross-sectional shape of the steel pipe type steel concrete column 1, the type steel concrete column 2 and the reinforced concrete column 3 can be rectangular or circular or other shapes.

[0053] The steel pipe type steel concrete column 1 and the type steel concrete column 2 are connected and fixed through the first splicing part and the first post-poured concrete 38 poured in the first splicing part, and the type steel concrete column 2 and the reinforced concrete column 3 are connected and fixed through the second splicing part and the second post-poured concrete 39 poured in the second splicing part.

[0054] The utility model provides two connecting modes for the first splicing part and the second splicing part respectively, namely, embodiment one: indirect connecting mode with additional steel plate, and embodiment two: direct connecting mode.

[0055] Embodiment one:

[0056] In the embodiment, the overall splicing mode of the splicing column is as shown in the figure. Figure 1 The first splicing part of the steel pipe type steel concrete column 1 and the type steel concrete column 2 comprises:

[0057] As shown in the figure, the first steel plate 16 located at the top end of the steel pipe type steel concrete column 1 is welded and fixed with the first type steel 5. Figures 3-4

[0058] The first detachable grouter 17 embedded at the top end of the steel pipe type steel concrete column 1;

[0059] As shown in the figure, the first longitudinal reinforcement 8 and the second type steel 10 located in the type steel concrete column 2 extend outward from the bottom to form the first connecting longitudinal reinforcement 18 and the first connecting type steel 19 respectively, and the end of the first connecting type steel 19 is welded and fixed with the second steel plate 20. Figures 5-6 The first steel plate 16 and the second steel plate 20 are bolted and fixed, the first connecting longitudinal reinforcement 18 is inserted into the first detachable grouter 17 and fixed through pouring the first post-poured concrete 38 into the first detachable grouter 17.

[0060] The second splicing part of the type steel concrete column 2 and the reinforced concrete column 3 comprises:

[0061] The third steel plate 21 arranged at the top end of the type steel concrete column 2 and welded and fixed with the second type steel 10;

[0062] As shown in the figure, the second longitudinal reinforcement 13 located in the reinforced concrete column 3 extends outward from the bottom to form the second connecting longitudinal reinforcement 22 and the concrete protruding part 23, the anchor bar 24 with one end extending into the reinforced concrete column 3 is embedded in the concrete protruding part 23, and the other end of the anchor bar 24 is welded with the fourth steel plate 25.

[0063] Figures 7-8 ​​​

[0064] Among them, the third steel plate 21 and the fourth steel plate 25 are fixed by bolts, and the second connecting longitudinal bar 22 is tied to the first longitudinal bar 8 of the steel-concrete column 2.

[0065] Example 2:

[0066] In this embodiment, the splicing columns are spliced ​​in the following manner: Figure 2 As shown, specifically, the first joint between the steel-concrete composite column 1 and the steel-concrete composite column 2 includes:

[0067] like Figure 9 As shown, the steel pipe 4 and the first steel section 5 located in the steel pipe concrete column 1 are respectively connected to form a straight steel pipe 26 and a first straight steel section 27 extending outward from their top ends. A second removable grouting device 28 is pre-embedded at the top end of the steel pipe concrete column 1.

[0068] like Figure 10 As shown, the first longitudinal reinforcement 8 and the second steel section 10 located in the steel-concrete column 2 extend outward from their bottom ends to form the first straight longitudinal reinforcement 29 and the second straight steel section 30, respectively.

[0069] Among them: the straight steel pipe 26 is inserted into the bottom of the steel-concrete column 2;

[0070] The first straight-connected steel section 27 is connected to the second straight-connected steel section 30, such as Figures 12-13 As shown, a flange connecting steel plate 31 is provided at the flange joint of the two, and a web connecting steel plate 32 is provided at the web joint. Multiple connecting bolts 33 are used to simultaneously connect and fix the flange connecting steel plate 31 to the flange joint of the first straight connecting steel 27 and the second straight connecting steel 30, and to connect and fix the web connecting steel plate 32 to the web joint of the first straight connecting steel 27 and the second straight connecting steel 30.

[0071] The first straight longitudinal bar 29 is inserted into the second removable grouting device 28 and fixed by injecting the first post-cast concrete 38 into the second removable grouting device 28.

[0072] The second joint between the steel-concrete composite column 2 and the reinforced concrete column 3 includes:

[0073] The first longitudinal reinforcement 8 and the second steel 10 located in the steel-concrete column 2, respectively form the second straight longitudinal reinforcement 35 and the third straight steel 34 by extending outward from their top ends;

[0074] like Figure 11 As shown, the second longitudinal bar 13 located in the reinforced concrete column 3, the third straight longitudinal bar 36 extending outward from its bottom end, and the groove 37 located at the bottom of the reinforced concrete column 3.

[0075] The second straight connection vertical rib 35 is tied with the third straight connection vertical rib 36, and the third straight connection vertical rib 34 is inserted into the groove 37.

[0076] The above merely describes the preferred embodiments of the present application and is not intended to limit the present application. For those skilled in the art, the present application can be variously changed and modified. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall fall within the protection scope of the present application.

Claims

1. A steel tube steel reinforced concrete and steel reinforced concrete and reinforced concrete spliced column, comprising: The steel pipe type steel concrete column (1), the steel concrete column (2) and the reinforced concrete column (3) are spliced from bottom to top in sequence; The steel pipe type steel concrete column (1) and the steel concrete column (2) are connected and fixed by the first splicing part, the first post-poured concrete (38) poured in the first splicing part, the steel concrete column (2) and the reinforced concrete column (3) are connected and fixed by the second splicing part, and the second post-poured concrete (39) poured in the second splicing part; The first splicing part and the second splicing part are connected by the indirect connection mode of additional steel plates or the direct connection mode.

2. The steel tube SCFT and SRC spliced column and RC spliced column according to claim 1, characterized in that, When the indirect connection mode of additional steel plates is adopted, the first splicing part comprises: A first steel plate (16) located at the top end of the steel pipe type steel concrete column (1) and welded with the first type steel (5) in the steel pipe type steel concrete column (1); A first detachable grouter (17) pre-buried at the top end of the steel pipe type steel concrete column (1); A first longitudinal reinforcement (8) and a second type steel (10) located in the steel concrete column (2), a first connecting longitudinal reinforcement (18) and a first connecting type steel (19) respectively formed by extending outward from the bottom thereof, and a second steel plate (20) welded with the end of the first connecting type steel (19); The first steel plate (16) and the second steel plate (20) are fixed by bolt connection, the first connecting longitudinal reinforcement (18) is inserted into the first detachable grouter (17) and fixed by pouring the first post-poured concrete (38) into the first detachable grouter (17).

3. The steel tube SCFT and SRC spliced column and RC spliced column according to claim 1, characterized in that, When the indirect connection mode of additional steel plates is adopted, the second splicing part comprises: A third steel plate (21) located at the top end of the steel concrete column (2) and welded with the second type steel (10) in the steel concrete column (2); A second longitudinal reinforcement (13) located in the reinforced concrete column (3), a second connecting longitudinal reinforcement (22) and a concrete protruding part (23) formed by extending outward from the bottom thereof, the concrete protruding part (23) is provided with an anchor bar (24) with one end extending into the reinforced concrete column (3), and the other end of the anchor bar (24) is welded with a fourth steel plate (25); The third steel plate (21) and the fourth steel plate (25) are fixed by bolt connection, and the second connecting longitudinal reinforcement (22) and the first longitudinal reinforcement (8) of the steel concrete column (2) are fixed by binding.

4. The steel tube SCFT and SRC spliced column and RC spliced column according to claim 1, characterized in that, When the direct connection mode is adopted, the first splicing part comprises: A steel pipe (4) and a first type steel (5) located in the steel pipe type steel concrete column (1), a straight connecting steel pipe (26) and a first straight connecting type steel (27) respectively formed by extending outward from the top end thereof, and a second detachable grouter (28) pre-buried at the top end of the steel pipe type steel concrete column (1); A first longitudinal reinforcement (8) and a second type steel (10) located in the steel concrete column (2), a first straight connecting longitudinal reinforcement (29) and a second straight connecting type steel (30) respectively formed by extending outward from the bottom end thereof; The straight connecting steel pipe (26) is inserted into the bottom of the steel concrete column (2); The first straight connecting section steel (27) is butted with the second straight connecting section steel (30), the flange butting part is provided with a flange connecting steel plate (31), the web butting part is provided with a web connecting steel plate (32), the flange connecting steel plate (31) is connected and fixed with the flange butting part of the first straight connecting section steel (27) and the second straight connecting section steel (30) by means of bolt connection, and the web connecting steel plate (32) is connected and fixed with the web butting part of the first straight connecting section steel (27) The web butting part of the second straight connecting section steel (30) is connected and fixed; The first straight connecting longitudinal reinforcement (29) is inserted into the second detachable grouting device (28) and is fixed by pouring the first post-poured concrete (38) into the second detachable grouting device (28).

5. The steel tube SCFT and SRC spliced column and RC spliced column according to claim 1, characterized in that, When the direct connection mode is adopted, the second splicing part comprises: The first longitudinal reinforcement (8) and the second section steel (10) located in the section steel reinforced concrete column (2) extend outward from the top end to form the second straight connecting longitudinal reinforcement (35) and the third straight connecting section steel (34) respectively; The second longitudinal reinforcement (13) located in the reinforced concrete column (3), the third straight connecting longitudinal reinforcement (36) formed by extending outward from the bottom end, and the groove (37) located at the bottom of the reinforced concrete column (3); The second straight connecting longitudinal reinforcement (35) and the third straight connecting longitudinal reinforcement (36) are tied, and the third straight connecting section steel (34) is inserted into the groove (37).

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