Steel truss and concrete frame connecting joint and building

Abstract

The utility model discloses a connecting joint of a steel truss and a concrete frame. The connecting joint comprises a concrete frame column, a concrete frame beam, the steel truss, a concrete bracket and a joint connecting assembly. The concrete frame columns and the concrete frame beams are connected to form a concrete frame; a first steel member is arranged in the concrete column; a second steel member is arranged in the concrete frame beam, and the end part of the second steel member extends into the concrete frame column; the first steel member is connected with the end part of the steel truss through the node connecting assembly; a concrete bracket is arranged on the outer side of the concrete frame column, and the top of the concrete bracket is connected with the joint connecting piece through a spherical support. The utility model further discloses a building. The utility model has the beneficial effects that the horizontal force of the steel truss is directly transmitted to the core area of the beam-column joint through the joint connecting piece and is jointly borne by the frame and the internal profile steel, and the vertical force is transmitted to the concrete bracket through the spherical support, so that the force transmission path is clear, and the safety of the joint is improved.

Description

Technical Field

[0001] The utility model relates to the field of building structures, in particular to a connection node between a steel truss and a concrete frame and a building. Background Art

[0002] When a large-span steel truss is connected to a concrete frame via a corbel on the side of the concrete frame column, it transmits large horizontal and vertical forces to the concrete frame column. The truss' horizontal force is converted into horizontal shear force between the columns, while the truss' vertical force is converted into axial force and bending moment in the frame column. The columns and corbels alone are difficult to bear, which has a significant negative impact on the concrete frame columns, the core area of ​​the beam and column, and the corbels, affecting the safety of the structure. Furthermore, in existing connection nodes, the corbels are used to resist horizontal and vertical forces. However, because the corbel surface elevation is often inconsistent with the elevation of the frame beam and column, the horizontal force transmission path is unclear, and the adverse effects of horizontal forces on the node area are complex and difficult to consider. Summary of the Invention

[0003] The purpose of the utility model is to provide a steel truss and concrete frame connection node and a building to improve the safety of the structure in view of the shortcomings of the existing technology.

[0004] The technical solution adopted by the utility model is: a connection node between a steel truss and a concrete frame, characterized in that it comprises a concrete frame column, a concrete frame beam, a steel truss chord, a concrete corbel and a node connection assembly;

[0005] The concrete frame columns are connected to the concrete frame beams, and the two form a concrete frame;

[0006] A first steel member is provided in the concrete frame column; a second steel member is provided in the concrete frame beam, and an end of the second steel member extends into the concrete frame column; the first steel member is connected to the end of the steel truss chord through a node connection assembly;

[0007] A concrete corbel is provided on the outer side of the concrete frame column, and the top of the concrete corbel is connected to the node connector via a spherical support.

[0008] According to the above solution, the node connection member includes a first node connection member and a second node connection member;

[0009] One end of the first node connector is connected to the first steel member in the concrete frame column, and the other end of the first node connector extends out of the concrete frame column and is connected to one end of the second node connector; the other end of the second node connector is connected to the steel truss chord; the bottom of the second node connector is connected to the concrete corbel through a spherical bearing.

[0010] According to the scheme, the second node connector is connected by four second node steel plates and a middle node partition plate.

[0011] According to the scheme, the first steel member in the concrete frame column comprises a first section steel, a first partition plate and an end plate; the first section steel is arranged vertically and oppositely; the two first section steels are connected by a column partition plate arranged at intervals; the end plates of the two first section steels are connected by an end head plate; and a plurality of shear bolts are arranged at intervals along the height direction on the outer side of the first section steel.

[0012] According to the scheme, the first node connector comprises a first node steel plate, one end of the first node steel plate is connected with the end plate of the first section steel in the concrete frame column, and the other end of the first node steel plate penetrates out of the concrete frame column and overlaps with the second node steel plate of the second node connector.

[0013] According to the scheme, the first node connector comprises two first node steel plates arranged in front and back, the inner ends of the first node steel plates are connected with the flange plates of the first section steel, and the protruding ends of the first node steel plates overlap with the second node steel plates of the second node connector on the front and back sides, respectively.

[0014] According to the scheme, the first node connector further comprises a vertical steel plate connecting the two first node steel plates, the vertical steel plate is embedded in the concrete frame column, and the outer side surface of the vertical steel plate is flush with the outer side surface of the concrete frame column.

[0015] According to the scheme, the second steel member is arranged in the concrete frame beam, the second steel member is a second section steel arranged along the length direction of the concrete frame beam, the inner end of the second section steel is connected with the first section steel of the concrete frame column, and a plurality of shear bolts are arranged at intervals along the length direction on the second section steel.

[0016] According to the scheme, the concrete bracket is provided with a pre-embedded part, the upper end of the pre-embedded part protrudes and is connected with the spherical support, and the steel truss chord is placed on the upper part of the spherical support through the second node connector.

[0017] The utility model further adopts a building, which comprises the steel truss and concrete frame connecting node as described above.

[0018] The utility model discloses beneficial effect is: the utility model discloses, the steel connecting in concrete frame column and concrete frame beam forms an integrity, and is connected with steel truss through node connecting piece, and steel truss is also connected with concrete frame column through spherical support, and this design can make steel truss transmit horizontal force and vertical force to concrete frame, wherein horizontal force can be directly transmitted to beam column node core area through node connecting piece, and is borne together by frame and internal steel, and vertical force can be directly transmitted to concrete bracket through spherical support, and concrete bracket does not need to bear the horizontal force of steel truss, and the force transmission path is clear, and the connection is reliable, and stress performance is good, improves the node structure safety. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is the whole structure schematic diagram of one concrete embodiment of the utility model.

[0020] Figure 2 It is the internal structure schematic diagram of this embodiment.

[0021] Figure 3 It is the cross section structure schematic diagram along A-A section line in the figure. Figure 2

[0022] Figure 4 It is the cross section structure schematic diagram along B-B section line in the figure. Figure 2

[0023] Figure 5 It is the internal steel structure schematic diagram of this embodiment.

[0024] In the figure: 100, steel truss;110, concrete frame column;120, concrete frame beam;130, concrete bracket;140, first steel;150, first node steel plate;160, truss steel plate;170, second node connecting piece;180, column partition;190, end head plate;200, spherical support;210, second steel;220, shear bolt;230, column internal steel through-hole;240, column internal steel round hole;250, concrete frame beam B;260, beam internal longitudinal reinforcement;270, beam internal steel round hole;280, column internal closed outer hoop;290, column internal longitudinal reinforcement;300, column internal short tension reinforcement;310, column internal closed inner hoop;320, column internal long tension reinforcement;330, pre-embedded part;340, vertical steel plate;400, web member. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical scheme and advantage of the embodiment of the application more clear, the technical scheme in the embodiment of the application will be described clearly and completely below with the drawings in the embodiment of the application. Obviously, the described embodiment is a part of the embodiment of the application, not all the embodiment. The components of the embodiment of the application described and shown in the drawings here can be arranged and designed in various different configurations.​​

[0026] Therefore, the following detailed description of embodiments of the application provided in the drawings is not intended to limit the scope of the application claimed, but merely represents selected embodiments of the application. Based on the embodiments in the application, all other embodiments obtained by those of ordinary skill in the art without creative labor are within the scope of protection of the application.

[0027] The features and performance of the connection joint of the reinforced concrete beam column and the concrete corbel 130 of the application are further described in detail below in combination with embodiments.

[0028] As Figures 1-4 shown in a steel truss and concrete frame connection joint, comprising a concrete frame column 110, a concrete frame beam 120, a steel truss chord 100, a concrete corbel 130 and a joint connection assembly;

[0029] The concrete frame column 110 is connected with the concrete frame beam 120, and the two constitute a concrete frame.

[0030] The first steel member is arranged in the concrete frame column 110; the second steel member is arranged in the concrete frame beam 120, and the end of the second steel member extends into the concrete frame column 110; the first steel member is connected with the end of the steel truss chord 100 through the joint connection assembly.

[0031] The outer side of the concrete frame column 110 is provided with the concrete corbel 130, and the top of the concrete corbel 130 is connected with the joint connecting piece through the spherical support 200.

[0032] In the utility model, the steel truss chord 100 and the concrete frame beam 120 are arranged in parallel, and the two are respectively located on the two sides of the concrete frame column 110.

[0033] Preferably, the joint connecting piece comprises a first joint connecting piece and a second joint connecting piece 170.

[0034] One end of the first joint connecting piece is connected with the first steel member in the concrete frame column 110, and the other end of the first joint connecting piece extends out of the concrete frame column 110 and is connected with one end of the second joint connecting piece 170; the other end of the second joint connecting piece 170 is connected with the steel truss chord 100; the bottom of the second joint connecting piece 170 is connected with the concrete corbel 130 through the spherical support 200.

[0035] In the utility model, the spherical support 200 is a common structure, which will not be repeated here.

[0036] The steel truss chord 100 is a box section, which is connected by truss steel plates 160.

[0037] Preferably, the first steel member in the concrete frame column 110 comprises a first section steel 140, a first partition plate and an end plate.

[0038] The first section steel 140 has two parts, which are arranged oppositely and vertically (vertically arranged front and back); the two first section steels 140 are connected by column partition plates 180 arranged at intervals; the end portions of the two first section steels 140 are connected by end head plates 190; and a plurality of shear studs 220 are arranged at intervals in the height direction on the outside of the first section steel 140.

[0039] In the utility model, one of the first section steels 140 is located on the front side in the concrete frame column 110, and the other first section steel 140 is located on the back side in the concrete frame column 110.

[0040] Preferably, the first node connecting piece comprises a first node steel plate 150 (including two parts, which are arranged in parallel front and back), one end of the first node steel plate 150 is connected with the end portion of the first section steel 140 in the concrete frame column 110 (specifically, the first section steel flange plate close to the side of the steel truss chord 100 is welded), the other end of the first node steel plate 150 penetrates out of the concrete frame column 110 and is overlapped with the second node steel plate of the second node connecting piece 170 (which can be welded).

[0041] In the embodiment, the first node connecting piece further comprises a vertical steel plate 340 connecting the two first node steel plates 150, the vertical steel plate 340 is embedded in the concrete frame column 110, and the outer side surface of the vertical steel plate 340 is flush with the outer side surface of the concrete frame column 110.

[0042] Preferably, the second steel member is a second section steel 210 arranged along the length direction of the concrete frame beam 120, the inner end of the second section steel 210 is connected with the column partition plate 180 in the concrete frame column 110. A plurality of shear studs 220 are arranged at intervals in the length direction on the upper flange plate and the lower flange plate of the second section steel 210.

[0043] In the embodiment, the first section steel 140 and the second section steel 210 are both I-shaped steels.

[0044] In the embodiment, the beam-column joint forms an integral whole, which jointly resists the horizontal force transmitted by the steel truss chord 100.

[0045] The utility model discloses, concrete frame column 110 and concrete frame beam 120 are all prior art components, including concrete layer and inside's reinforcing bar, among them the longitudinal reinforcement and the waist muscle of concrete frame beam 120 stretch into concrete frame column 110, set up round hole 270 on the second section steel 210 in concrete frame beam 120, the hoop 280 of concrete column is convenient for passing through.

[0046] The utility model discloses, corbel 130 is used for bearing steel truss chord 100 transmission's vertical force, concrete corbel 130 preburies embedded part 330, and embedded part 330 is connected with spherical support 200 ( can be direct welding), steel truss chord 100 is placed on the upper portion of spherical support 200 through second node connecting piece 170, spherical support 200 adopts two -way sliding support, and this kind of support will not transmit the horizontal force that steel truss chord 100 produced to corbel 130, and horizontal force is transmitted to concrete frame column 110 through first node connecting piece and second node connecting piece 170.

[0047] The construction method of the embodiment is:

[0048] The steel plate 160 in steel truss chord 100, second node connecting piece 170, first section steel 140 in concrete frame column 110, column partition 190, end head plate 200, second section steel 210 in concrete frame beam 120 and so on can all be welded in advance in factory, and then the whole component is transported to the scene and is constructed.

[0049] The column longitudinal reinforcement 290 in concrete frame column 110 is reserved in advance, and after the steel structure is transported to the scene, first, the first section steel 140 in the column and the second section steel 210 in the beam are cut and are temporarily fixed, then the hoop of the concrete frame column 110 is bound, the internal reinforcing steel of the concrete corbel 130 is bound, the embedded part 330 is preburied and is temporarily fixed, then the concrete is poured to the upper surface of the corbel 130, after the concrete of the corbel 130 reaches the design strength, the spherical support 200 and the steel truss chord 100 are installed, after the installation and adjustment of the steel truss chord 100 are completed, the second node connecting piece 170 is welded with the spherical support 200, then the first node steel plate 150 is welded with the steel truss chord 100 and the first section steel 140 in the column on site, so as to avoid the first node steel plate 150 from being unable to be installed due to installation error, after the steel structure is welded, the remaining concrete of the beam and column is poured.

[0050] In the utility model, the stirrup of the concrete frame column 110 includes closed outer hoop 280 and a plurality of inner hoops, a plurality of closed inner hoops 310 and a plurality of column inner long stirrups 320 are adopted in the vertical direction of the concrete frame beam 120 outside the range of the first node steel plate 150, a plurality of closed inner hoops 310, a plurality of column inner long stirrups 320 and two short stirrups 300 at the corner are adopted in the vertical direction of the concrete frame beam 120 within the range of the first node steel plate 150, the closed inner hoops 310 cannot penetrate the whole column section, are only arranged on the outer side of the first type steel 140 in the column and are welded on site with the first type steel 140. The arrangement of the steel bars in the concrete frame beam 120 all adopts the existing conventional mode, and can be adaptively adjusted according to the position of the first type steel 140.

[0051] In the utility model, the concrete frame beam 120 and the steel truss chord 100 are respectively located on the left and right sides of the concrete frame column 110, and the front and rear sides of the concrete frame column 110 can also be connected with the concrete frame beam B 250 respectively, at the moment, the first type steel 140 in the concrete frame column 110 needs to be provided with two through holes 230 and a plurality of round holes 240 (as shown in the figure) in advance, so that the inner longitudinal reinforcement 260 and the waist reinforcement of the concrete frame beam B 250 can pass through and extend into the concrete frame column 110, and other settings can adopt the existing conventional technology. Figure 5

[0052] In the utility model, the shape of the second node connecting piece 170 can be designed according to the actual connecting component.

[0053] In the utility model, the steel truss further includes the steel truss chord 100 and the web member 400, the web member 400 is a box-shaped section (formed by surrounding and connecting steel plates), and the end of each steel plate of the web member 400 is welded with the second node connecting piece 7.

[0054] A building includes the steel truss and concrete frame connecting node as described above.

[0055] The above-described embodiments are part of the embodiments of the present application, rather than all the embodiments. The detailed description of the embodiments of the present application is not intended to limit the scope of the claimed application, but only represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.​

Claims

1. A steel truss-to-concrete frame connection joint, characterized by, Includes concrete frame columns, concrete frame beams, steel truss chords, concrete corbels and node connection components; The concrete frame columns are connected to the concrete frame beams, and the two form a concrete frame; A first steel member is provided in the concrete frame column; a second steel member is provided in the concrete frame beam, and an end of the second steel member extends into the concrete frame column; the first steel member is connected to the end of the steel truss chord through a node connection assembly; A concrete corbel is provided on the outer side of the concrete frame column, and the top of the concrete corbel is connected to the node connector via a spherical support.

2. The steel truss-to-concrete frame connection node of claim 1, wherein, The node connector includes a first node connector and a second node connector; One end of the first node connector is connected to the first steel member in the concrete frame column, and the other end of the first node connector extends out of the concrete frame column and is connected to one end of the second node connector; the other end of the second node connector is connected to the steel truss chord; the bottom of the second node connector is connected to the concrete corbel through a spherical bearing.

3. The steel truss-to-concrete frame connection node of claim 2, wherein, The second node connector is formed by connecting four second node steel plates and a node partition in the middle, and the second node connector is butt-jointed with the end of the steel truss chord.

4. The steel truss-to-concrete frame connection joint according to any one of claims 1 to 3, wherein The first steel component in the concrete frame column includes a first steel section, a first partition and an end plate; there are two first steel sections, which are arranged opposite to each other and vertically; the two first steel sections are connected by a column partition arranged at intervals; the ends of the two first steel sections are connected by an end head plate; and a plurality of shear bolts are arranged at intervals along the height direction on the outside of the first steel section.

5. The steel truss-to-concrete frame connection node of claim 3, wherein, The first node connector includes a first node steel plate, one end of which is connected to the end of the first steel section in the concrete frame column, and the other end of the first node steel plate passes through the concrete frame column and overlaps the second node steel plate of the second node connector.

6. The steel truss-to-concrete frame connection node of claim 5, wherein, The first node connector also includes a vertical steel plate connecting the two first node steel plates. The vertical steel plate is embedded in the concrete frame column, and the outer side surface of the vertical steel plate is flush with the outer side surface of the concrete frame column.

7. The steel truss-to-concrete frame connection node of claim 4, wherein, A second steel component is provided in the concrete frame beam. The second steel component is a second steel section provided along the length direction of the concrete frame beam. The inner end of the second steel section is connected to the column partition in the concrete frame column. A plurality of shear bolts are provided on the second steel section at intervals along the length direction.

8. The steel truss-to-concrete frame connection node of claim 2, wherein, The concrete corbel is pre-embedded, and the upper end of the embedded part extends out and is connected to the spherical support; the steel truss chord is placed on the upper part of the spherical support through the second node connector.

9. A building, characterized in that It comprises the steel truss and concrete frame connection node as claimed in claim 8.

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