Formwork reinforcing system at connection node of steel reinforced column top end truss beam and diagonal bracing column

Abstract

The utility model discloses a formwork reinforcing system at a connecting node of a steel reinforced column top end truss beam and a diagonal bracing column, and solves the problem of how to reinforce a concrete pouring formwork at the node. An integral joint piece is composed of a horizontal lower I-shaped steel joint section (2), a horizontal upper I-shaped steel joint section (6), a horizontal connecting plate (8), a diagonal bracing steel pipe column connecting bracket (7) and a pre-embedded steel plate (9), and a beam and column joint inclined vertical formwork (16) and a beam and column joint vertical formwork (18) are arranged on the periphery of the integral joint piece respectively. A first split bolt (17) is arranged between the inclined vertical template (16) at the node of the beam and the column and an anchor bolt (10) arranged on the lower bottom surface of the embedded steel plate (9); a second split bolt (19) is arranged between a vertical template (18) at the node of the beam and the column and an anchor bolt (10) arranged on the lower bottom surface of the embedded steel plate (9); and the rigidity of the whole node piece is ensured not to be damaged.

Description

Technical Field

[0001] The utility model relates to a truss beam template reinforcement system at the top of a steel column, in particular to a template reinforcement system at a connection node between a truss beam at the top of a steel column and a diagonal bracing column. Background Art

[0002] Steel structure buildings are a type of building structure. They are composed of H-shaped steel beams, steel columns, steel trusses and other components made of steel sections and steel plates. With the development of prefabricated buildings, the integral steel structure beam-column nodes connected by on-site welding have restricted the construction speed of prefabricated steel structure buildings. In order to avoid a large amount of welding work on site and improve the degree of assembly of steel structure structures, bolts are also used to connect the nodes; the method of component splicing is usually adopted on site, and the components or parts are usually connected together by welds, bolts or rivets. It has the advantage of simple construction and is widely used in large factories, venues, super high-rise buildings and other fields.

[0003] The main body of some stadium structures uses a reinforced concrete frame at the bottom, and a tube truss metal aluminum plate roof at the top. The bottom end of the tube truss is set at the top of the concrete frame beam. An I-beam is embedded in the concrete frame beam. The embedded I-beam needs to be set at the top of the I-beam column in the steel frame column. A diagonal brace steel column is set on one side of the embedded I-beam. The conventional construction method for the connection node of this steel beam, steel column and steel tube diagonal brace column is: first, the embedded I-beam in the concrete frame column is constructed, and the lap ribs are welded on both sides of the web at the top of the embedded I-beam. The end of the horizontal I-beam in the concrete top frame beam is butt-jointed to the lap ribs, and the two are fixed together with a steel splint. On the outer side of the upper flange plate of the horizontal steel beam at the connection point The ear plate at the top of the steel column is welded to connect the diagonal brace. The top of the steel column diagonal brace is abutted against the top ear plate and welded to form a connection node structure of the steel beam, steel column and steel pipe diagonal brace. This construction method has the following problems: (1) The positioning accuracy of the rib plates on both sides of the web plate at the top of the embedded I-beam in the column is low, and the subsequent docking with the I-beam in the beam often causes docking misalignment, which requires re-welding; (2) The positioning of the ear plate at the top of the diagonal brace steel column welded on the outside of the upper flange plate of the horizontal steel beam at the connection point is also inaccurate, which directly leads to misalignment between the top of the diagonal brace and its connection, making it impossible to connect the diagonal brace with the ear plate; (3) When there are a large number of such connection nodes, the operation safety risk is relatively high because the node is welded at high altitude.

[0004] For the connection nodes of steel columns in steel frame columns, steel beams in precast concrete beams and steel pipe diagonal bracing columns, if concrete is poured, there will be problems in fixing the formwork at the nodes.

[0005] The traditional method of reinforcing the side formwork of concrete beams requires inserting tension screws into the beam section. Since rigid concrete steel beams and columns are built with steel sections, it is not easy to drill screw holes on the side of the steel sections. Drilling screw holes on the steel sections will affect the stress of the structure. Too many holes require reinforcement measures, which increases the workload and the project cost. How to reinforce the concrete pouring formwork at the nodes has become a problem that needs to be solved on site. Summary of the invention

[0006] The utility model provides a template reinforcement system at the connection node between the top truss beam of a steel column and a diagonal bracing column, which solves the technical problem of how to reinforce the concrete pouring template at the node.

[0007] The utility model solves the above technical problems through the following technical solutions:

[0008] A template reinforcement system for the connection node between the top truss beam of a steel column and a diagonal bracing column comprises an I-beam column in the steel column, a pre-buried I-beam beam and a diagonal bracing steel pipe column, a horizontal lower I-beam node section is arranged at the top of the I-beam column in the steel column, a horizontal upper I-beam node section is welded to the horizontal lower I-beam node section, a horizontal connecting plate is welded to the front flange plate of the horizontal upper I-beam node section, a diagonal bracing steel pipe column connecting bracket is welded to the outer end of the horizontal connecting plate, a pre-buried steel plate is welded between the top of the diagonal bracing steel pipe column connecting bracket and the top surface of the horizontal upper I-beam node section, and an anchor bolt is arranged on the lower bottom surface of the pre-buried steel plate A diagonal bracing steel pipe column is connected to the diagonal bracing steel pipe column connecting corbel, and a pre-buried I-beam is connected to the left side of the horizontal lower I-beam node section. The integral node component is composed of the horizontal lower I-beam node section, the horizontal upper I-beam node section, the horizontal connecting plate, the diagonal bracing steel pipe column connecting corbel and the pre-buried steel plate; an inclined vertical formwork at the beam-column node and a vertical vertical formwork at the beam-column node are respectively arranged on the periphery of the integral node component, a first tension bolt is arranged between the inclined vertical formwork at the beam-column node and the anchor bolt arranged on the lower bottom surface of the embedded steel plate; a second tension bolt is arranged between the vertical vertical formwork at the beam-column node and the anchor bolt arranged on the lower bottom surface of the embedded steel plate.

[0009] A beam longitudinal reinforcement lap cantilever plate is arranged on the web below the upper flange plate of the horizontal lower I-beam node section, a beam bottom formwork is arranged below the embedded I-beam, a beam front side formwork and a beam rear side formwork are respectively arranged on the beam bottom formwork, and beam formwork tension bolts are arranged between the beam front side formwork and the beam rear side formwork; a closed column formwork is arranged on the outer side of the I-beam column in the steel column; the beam bottom formwork, the beam front side formwork, the beam rear side formwork, the closed column formwork, the inclined vertical formwork at the beam and column node and the vertical vertical formwork at the column node constitute a closed space for concrete pouring.

[0010] A pad is provided on the beam bottom formwork, lower beam longitudinal reinforcement is provided on the pad, upper beam longitudinal reinforcement is provided above the embedded I-beam, beam side longitudinal reinforcement is provided on both the front and rear sides of the embedded I-beam, inner beam annular stirrups are provided between the lower beam longitudinal reinforcement, the side beam longitudinal reinforcement and the upper beam longitudinal reinforcement, and the right end of the upper beam longitudinal reinforcement is welded to the beam longitudinal reinforcement lap cantilever plate.

[0011] The integral node structural member of the utility model can be designed and calculated by computer software, and can be integrally processed and formed in a factory. The reserved corbel interspersed frame solves the problem of difficult node connection positioning and welding due to complex node forms and numerous plates such as stiffening plates in traditional construction. The tension bolts on both sides are welded to the reserved interspersed frame, which can solve the problem of tensioning the formwork and the steel beam, and ensure that the rigidity of the integral node member is not destroyed. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the three-dimensional structure template structure of the utility model;

[0013] Figure 2 It is a schematic diagram of the template structure of the utility model in a top view direction;

[0014] Figure 3 It is a structural schematic diagram of the integral node member of the utility model;

[0015] Figure 4 It is a structural schematic diagram of the horizontal lower I-beam node section 2 of the utility model;

[0016] Figure 5 It is a schematic diagram of the connection structure between the horizontal lower I-beam node section 2 and the top of the I-beam column 1 in the steel frame column;

[0017] Figure 6 It is a structural schematic diagram of a horizontal I-beam node section 6 of the utility model;

[0018] Figure 7 It is a schematic diagram of the structure after the horizontal lower I-beam node section 2 and the horizontal upper I-beam node section 6 are connected;

[0019] Figure 8 It is a structural schematic diagram of the diagonal bracing steel pipe column connecting the corbel 7 of the utility model;

[0020] Fig. 9 This is a schematic diagram of the structure of the embedded steel plate 9 of the utility model DETAILED DESCRIPTION

[0021] The utility model is described in detail below with reference to the accompanying drawings:

[0022] A template reinforcement system for the connection node between the top truss beam of a steel frame column and a diagonal bracing column, comprising an I-beam column 1 in the steel frame column, an embedded I-beam beam 12 and a diagonal bracing steel pipe column 26, a horizontal lower I-beam node segment 2 is arranged at the top of the I-beam column 1 in the steel frame column, a horizontal upper I-beam node segment 6 is welded to the horizontal lower I-beam node segment 2, a horizontal connecting plate 8 is welded and connected to the front side flange plate of the horizontal upper I-beam node segment 6, a diagonal bracing steel pipe column connecting bracket 7 is welded and connected to the outer end of the horizontal connecting plate 8, a pre-embedded steel plate 9 is welded and connected between the top end of the diagonal bracing steel pipe column connecting bracket 7 and the top end surface of the horizontal upper I-beam node segment 6, an anchor bolt 10 is arranged on the lower bottom surface of the pre-embedded steel plate 9, and a diagonal bracing steel pipe column connecting bracket 7 is welded and connected to the top end of the diagonal bracing steel pipe column connecting bracket 7. The pipe column connecting corbel 7 is connected to a diagonal bracing steel pipe column 26, and the left side of the horizontal lower I-beam node section 2 is connected to a pre-buried I-beam beam 12. The integral node component is composed of the horizontal lower I-beam node section 2, the horizontal upper I-beam node section 6, the horizontal connecting plate 8, the diagonal bracing steel pipe column connecting corbel 7 and the pre-buried steel plate 9; the inclined vertical formwork 16 at the beam-column node and the vertical vertical formwork 18 at the beam-column node are respectively arranged on the periphery of the integral node component, and a first tension bolt 17 is arranged between the inclined vertical formwork 16 at the beam-column node and the anchor bolt 10 arranged on the lower bottom surface of the pre-buried steel plate 9; the second tension bolt 19 is arranged between the vertical vertical formwork 18 at the beam-column node and the anchor bolt 10 arranged on the lower bottom surface of the pre-buried steel plate 9.

[0023] A beam longitudinal reinforcement lap cantilever plate 5 is arranged on the web below the upper flange plate of the horizontal lower I-beam node section 2, a beam bottom formwork 20 is arranged below the embedded I-beam beam 12, a beam front side formwork 14 and a beam rear side formwork 13 are respectively arranged on the beam bottom formwork 20, and a beam formwork tension bolt 15 is arranged between the beam front side formwork 14 and the beam rear side formwork 13; a closed column formwork 27 is arranged on the outer side of the I-beam column 1 in the steel column; the beam bottom formwork 20, the beam front side formwork 14, the beam rear side formwork 13, the closed column formwork 27, the inclined vertical formwork 16 at the beam and column node and the vertical vertical formwork 18 at the column node constitute a closed space for concrete pouring; among them, there are four inclined vertical formworks 16 at the beam and column node, and two vertical vertical formworks 18 at the column node, which form an octagonal outline.

[0024] A pad 21 is provided on the beam bottom formwork 20, and a beam lower longitudinal reinforcement 25 is provided on the pad 21. A beam upper longitudinal reinforcement 24 is provided above the embedded I-beam 12, and beam side longitudinal reinforcement 23 is provided on both the front and rear sides of the embedded I-beam 12. An inner beam annular stirrup 22 is provided between the beam lower longitudinal reinforcement 25, the beam side longitudinal reinforcement 23 and the beam upper longitudinal reinforcement 24, and the right end of the beam upper longitudinal reinforcement 24 is welded to the beam longitudinal reinforcement lap cantilever plate 5.

[0025] A structure for an integral connection node between a truss beam at the top end of a steel column and a diagonal brace column, comprising an I-beam column 1 in the steel column, a pre-buried I-beam beam and a diagonal brace steel pipe column, a horizontal lower I-beam node section 2 being arranged at the top end of the I-beam column 1 in the steel column, a web inserting groove 3 of the I-beam column 1 in the steel column being arranged on the lower flange plate of the horizontal lower I-beam node section 2, the groove being deep into the web, a web connecting groove 4 of a horizontal upper I-beam node section being arranged on the upper flange plate of the horizontal lower I-beam node section 2, the groove also being deep into the web, connecting bolt through holes being arranged on both left and right sides of the web of the horizontal lower I-beam node section 2; a horizontal upper I-beam node section 6 being inserted and welded into the web connecting groove 4 of the horizontal upper I-beam node section, the web of the horizontal upper I-beam node section 6 being connected to the horizontal lower I-beam node section 2 are arranged perpendicular to each other; a horizontal connecting plate 8 is welded to the front side flange plate of the horizontal upper I-beam node segment 6, a diagonal brace steel pipe column connecting bracket 7 is welded to the outer end of the horizontal connecting plate 8, and a pre-buried steel plate 9 is welded between the top end of the diagonal brace steel pipe column connecting bracket 7 and the top end surface of the horizontal upper I-beam node segment 6; the integral node component of the utility model is composed of a horizontal lower I-beam node segment 2, a horizontal upper I-beam node segment 6, a horizontal connecting plate 8, a diagonal brace steel pipe column connecting bracket 7 and a pre-buried steel plate 9. After these components are processed in the factory, they are assembled and welded into an integral node component, and then transported to the construction site for hoisting and installation on the top end of the I-beam column 1 in the steel frame column. For construction sites with a large number of nodes, this installation method greatly speeds up the construction progress.

[0026] A beam longitudinal reinforcement lap cantilever plate 5 is arranged on the web below the upper flange plate of the horizontal lower I-beam node section 2, and the longitudinal reinforcement in the precast concrete frame beam can be welded and connected to the beam longitudinal reinforcement lap cantilever plate 5; a lifting lug 11 is arranged on the top surface of the embedded steel plate 9, and the lifting of the integral node component can be realized by the lifting lug 11, and an anchor bolt 10 is arranged on the lower bottom surface of the embedded steel plate 9; a connecting lug of the diagonal bracing steel pipe column is arranged on the diagonal bracing steel pipe column connecting corbel 7; the integral node component of the utility model is connected to the horizontal I-beam in the precast concrete frame beam through the connecting bolt passing holes arranged on the left and right sides of the web of the horizontal lower I-beam node section 2; it is connected to the diagonal bracing steel pipe column through the diagonal bracing steel pipe column connecting corbel 7, which greatly simplifies the steps of on-site docking and installation.

Claims

1. A template reinforcement system at the connection node between the top truss beam of a steel column and a diagonal brace column, comprising an I-beam column (1) in the steel column, a pre-buried I-beam beam (12) and a diagonal brace steel pipe column (26), characterized in that: A horizontal lower I-beam node section (2) is arranged at the top end of an I-beam column (1) in a steel frame column, a horizontal upper I-beam node section (6) is welded to the horizontal lower I-beam node section (2), a horizontal connecting plate (8) is welded to the front flange plate of the horizontal upper I-beam node section (6), a diagonal bracing steel pipe column connecting bracket (7) is welded to the outer end of the horizontal connecting plate (8), an embedded steel plate (9) is welded between the top end of the diagonal bracing steel pipe column connecting bracket (7) and the top end surface of the horizontal upper I-beam node section (6), an anchor bolt (10) is arranged on the lower bottom surface of the embedded steel plate (9), a diagonal bracing steel pipe column (26) is connected to the diagonal bracing steel pipe column connecting bracket (7), and the horizontal lower I-beam node section (2) is welded to the front flange plate of the horizontal upper I-beam node section (6). The left side of the integral node member is connected to a pre-buried I-beam (12), and the integral node member is composed of a horizontal lower I-beam node section (2), a horizontal upper I-beam node section (6), a horizontal connecting plate (8), a diagonal bracing steel pipe column connecting bracket (7) and a pre-buried steel plate (9); an inclined vertical template (16) at the beam-column node and a vertical vertical template (18) at the beam-column node are respectively arranged on the periphery of the integral node member, and a first tension bolt (17) is arranged between the inclined vertical template (16) at the beam-column node and an anchor bolt (10) arranged on the lower bottom surface of the pre-buried steel plate (9); and a second tension bolt (19) is arranged between the vertical vertical template (18) at the beam-column node and an anchor bolt (10) arranged on the lower bottom surface of the pre-buried steel plate (9).

2. A formwork reinforcement system at the connection node between the top truss beam of the steel column and the diagonal brace column according to claim 1, characterized in that: A beam longitudinal reinforcement lap cantilever plate (5) is arranged on the web below the upper flange plate of the horizontal lower I-beam node section (2); a beam bottom formwork (20) is arranged below the embedded I-beam beam (12); a beam front side formwork (14) and a beam rear side formwork (13) are respectively arranged on the beam bottom formwork (20); beam formwork tension bolts (15) are arranged between the beam front side formwork (14) and the beam rear side formwork (13); a closed column formwork (27) is arranged outside the I-beam column (1) in the steel frame column; the beam bottom formwork (20), the beam front side formwork (14), the beam rear side formwork (13), the closed column formwork (27), the inclined vertical formwork (16) at the beam-column node, and the vertical vertical formwork (18) at the column node form a closed space for concrete pouring.

3. The formwork reinforcement system at the connection node between the top truss beam of the steel column and the diagonal brace column according to claim 2 is characterized in that: A cushion block (21) is arranged on the beam bottom formwork (20), a beam lower longitudinal reinforcement (25) is arranged on the cushion block (21), a beam upper longitudinal reinforcement (24) is arranged above the embedded I-beam beam (12), beam side longitudinal reinforcement (23) is arranged on both the front and rear sides of the embedded I-beam beam (12), an inner beam annular stirrup (22) is arranged between the beam lower longitudinal reinforcement (25), the beam side longitudinal reinforcement (23) and the beam upper longitudinal reinforcement (24), and the right end of the beam upper longitudinal reinforcement (24) is welded to the beam longitudinal reinforcement overlap cantilever plate (5).

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