Triangular support for steel-concrete composite beam flange plate concrete construction

Abstract

The invention relates to a triangular support for steel-concrete composite beam flange plate concrete construction, which comprises a connecting steel sheet and a steel box beam web plate, one side of the connecting steel sheet is connected with a base insertion pipe, the side of the connecting steel sheet is connected with two channel steel columns, the bottom sides of the two channel steel columns are connected with channel steel rods, and the channel steel rods are connected with the steel box beam web plate. Connecting pieces are arranged between the channel steel columns and the steel box girder web and between the channel steel rods and the steel box girder web, and two supporting pieces are further arranged between the two channel steel columns. The invention relates to the technical field of steel box girder flange plate pouring. According to the triangular support for steel-concrete composite beam flange plate concrete construction, during installation, the triangular support is directly fixed to the upper inserting plate and the lower inserting plate on the steel box beam web, so that a floor stand does not need to be used for supporting, interference to traffic passage is reduced, and the installation cost is reduced; and meanwhile, the triangular bracket can be quickly fixed on the upper inserting plate and the lower inserting plate, so that the mounting efficiency is improved, and the construction safety is ensured.

Description

Technical Field

[0001] The invention relates to the technical field of steel box beam flange plate casting, in particular to a triangular bracket for concrete construction of steel-concrete composite beam flange plates. Background Art

[0002] The flange plate formworks need to be supported on both sides of the steel box girder for cast-in-place construction. During the construction process, the formwork needs to be fixed to the side of the steel box girder and removed after the flange plate is cast. The installation of the formwork requires supporting it with a floor bracket, fixing the floor bracket in a designated position, and then fixing the flange plate formwork to the top of the floor bracket by bolting, etc., to facilitate the subsequent casting of the flange plate.

[0003] In the prior art, in some cases, after the steel box girder is installed, its sides are high from the ground, and there are road surfaces or civil facilities at the location where the ground bracket needs to be set. At this time, it is difficult to support the location with the ground bracket, which can easily affect the casting of the flange plate. Summary of the invention

[0004] In view of the shortcomings of the prior art, the purpose of the present invention is to provide a triangular bracket for concrete construction of flange slabs of steel-concrete composite beams, so as to solve the technical problems mentioned in the above background technology.

[0005] The above technical objectives of the present invention are achieved through the following technical solutions:

[0006] A triangular bracket for concrete construction of flange plates of steel-concrete composite beams, comprising a connecting steel sheet and a steel box beam web, one side of the connecting steel sheet is connected to a base insert, the side of the connecting steel sheet is connected to two channel steel columns, the bottom sides of the two channel steel columns are both connected to channel steel rods, connecting pieces are provided between the channel steel columns and the channel steel rods and the steel box beam web, and two supporting pieces are further provided between the two channel steel columns;

[0007] The connecting member includes an upper steel sheet, a lower steel sheet, an upper plug plate and a lower plug plate, the upper steel sheet is fixedly connected between the ends of the two channel steel columns, the lower steel sheet is fixedly connected between the ends of the two channel steel rods, the upper plug plate and the lower plug plate are both fixedly connected to the sides of the web of the steel box beam, the upper steel sheet and the upper plug plate are both provided with a first screw hole, the lower steel sheet and the lower plug plate are provided with a second screw hole, and a limiting member is connected to a side of the upper steel sheet away from the upper plug plate.

[0008] In a preferred example, the present invention can be further configured as follows: the channel steel rod is inclined on the bottom side of the channel steel column and inclined downward toward a position close to the web of the steel box girder; two supporting steel columns are connected between the two channel steel columns; the bottom end of the supporting steel column extends between the two channel steel rods and is fixedly connected to the channel steel rods.

[0009] In a preferred example, the present invention can be further configured as follows: the support member includes two positioning steel plates, the two positioning steel plates are respectively fixedly connected to the bottom side wall and the bottom side wall of the channel steel column, a screw is arranged on the top side of the channel steel column, the bottom end of the screw passes through the two positioning steel plates and is slidingly connected to the positioning steel plates, a nut is rotatably connected to the top side of the positioning steel plate located above, the nut is threadedly connected to the screw, and the top end of the screw is connected to a positioning pipe seat.

[0010] In a preferred example, the present invention can be further configured as follows: the limiting member includes a limiting portion and an opening and closing portion, the limiting portion includes a rectangular column, the rectangular column is fixedly connected to the side of the upper steel sheet away from the upper insert plate, two opposite sides of the rectangular column are provided with grooves, a card plate is slidably connected in the groove, a card slot corresponding to the card plate is provided on the side of the upper insert plate, and the end of the card plate is inclined.

[0011] In a preferred example, the present invention can be further configured as follows: the opening and closing portion includes an inner groove, the inner groove is opened in the rectangular column, circular grooves are opened on the two side walls of the inner groove close to the two clamping plates, two slides are slidably connected in the inner groove, a first spring is connected between the corresponding slides and the clamping plates, a second spring is connected between the two slides, and a control part is arranged on the top of the inner groove.

[0012] In a preferred example, the present invention can be further configured as follows: the control member includes two trapezoidal blocks, the two trapezoidal blocks are respectively fixedly connected to the top sides of the two slides, the top side of the rectangular column is threadedly connected with a driving stud, the bottom end of the driving stud is inserted into the inner groove and is located between the two trapezoidal blocks, and the bottom end of the driving stud is in contact with the two trapezoidal blocks.

[0013] In summary, the present invention includes at least one of the following beneficial technical effects:

[0014] 1. The triangular bracket for concrete construction of flange plates of steel-concrete composite beams is directly fixed to the upper plug plate and the lower plug plate on the web of the steel box beam during installation, so that there is no need to use a floor bracket for support, which reduces interference with traffic and reduces installation costs. At the same time, the triangular bracket can be quickly fixed to the upper plug plate and the lower plug plate, which improves installation efficiency and ensures construction safety.

[0015] 2. A triangular bracket for concrete construction of flange slabs of a steel-concrete composite beam, wherein a channel steel rod is fixed to the bottom of a corresponding channel steel column, the channel steel rod is inclined, and a supporting steel column is connected between two channel steel columns, and the bottom end of the supporting steel column is connected between the two channel steel rods, so that the channel steel rod, the channel steel column and the supporting steel column cooperate to form a triangle shape, and the stability of the flange slab formwork is used to support the flange slab formwork, thereby ensuring the stability of the flange slab formwork during pouring;

[0016] 3. A triangular bracket for concrete construction of flange plates of steel-concrete composite beams, wherein two positioning steel sheets are welded to the top and bottom sides of two channel steel columns, so that when the screw is threadedly connected to the corresponding two positioning steel sheets, shaking is avoided, and the nut can be rotated to drive the screw to move up and down when the nut rotates, so that the positioning pipe seat fits the bottom steel pipe of the flange plate template, thereby supporting the flange plate template;

[0017] 4. A triangular bracket for concrete construction of flange plates of steel-concrete composite beams, grooves are provided on two opposite sides of the rectangular column, a card plate is slidably connected in the groove, a card slot corresponding to the card plate is provided on the upper plug plate, when installing the triangular bracket, the upper steel sheet is inserted into the upper plug plate, during which the side edge of the upper plug plate is pressed against the inclined position of the end of the card plate, thereby pressing the card plate to move away from the groove, and as the upper steel sheet moves into the upper plug plate, when the card plate reaches the card slot, the opening and closing part will pull the card plate, and the inclined protrusion at the end of the card plate will be inserted into the card slot, thereby completing the effect of initially limiting the triangular bracket;

[0018] 5. A triangular bracket for concrete construction of flange slabs of a steel-concrete composite beam, wherein two trapezoidal blocks are respectively connected to the top sides of corresponding slide plates. When disassembly is required, the driving stud is rotated, and the driving stud will move downward, thereby squeezing the two trapezoidal blocks. The two trapezoidal blocks are right-angled trapezoids, and the inclined surfaces of the two trapezoidal blocks are both in contact with the driving stud. Therefore, when the driving stud moves downward, it will squeeze the trapezoidal blocks, causing the trapezoidal blocks to move toward the corresponding card plate, thereby driving the slide plate to move toward the corresponding card plate, causing the first spring to be compressed and the second spring to be stretched. The compression of the first spring will cause the other end to push the card plate, thereby driving the end of the card plate to disengage from the corresponding card slot, thereby completing the disassembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for describing the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0020] Figure 1The present invention is a schematic diagram of the connection structure between a triangular bracket for concrete construction of a steel-concrete composite beam flange plate and a steel box beam web.

[0021] Figure 2 The present invention is a schematic diagram of the overall structure of a triangular bracket for concrete construction of a steel-concrete composite beam flange slab.

[0022] Figure 3 The present invention is a schematic diagram of the internal structure of a rectangular column of a triangular bracket for concrete construction of a steel-concrete composite beam flange slab.

[0023] In the figure, 1, connecting steel sheet; 2, steel box girder web; 3, channel steel column; 4, channel steel rod; 5, connecting piece; 6, supporting piece; 7, upper steel sheet; 8, lower steel sheet; 9, upper plug plate; 10, lower plug plate; 11, first screw hole; 12, second screw hole; 13, limiting piece; 14, supporting steel column; 15, positioning steel sheet; 16, screw rod; 17, nut; 18, positioning pipe seat; 19, rectangular column; 20, groove; 21, clamping plate; 22, clamping groove; 23, inner groove; 24, circular groove; 25, slide plate; 26, first spring; 27, second spring; 28, control piece; 29, trapezoidal block; 30, driving stud; 31, base plug. DETAILED DESCRIPTION

[0024] The present invention is further described in detail below in conjunction with the accompanying drawings.

[0025] Example:

[0026] Reference Figure 1-Figure 2 The present invention discloses a triangular bracket for concrete construction of flange plates of steel-concrete composite beams, comprising a connecting steel sheet 1 and a steel box beam web 2, one side of the connecting steel sheet 1 is connected to a base insert 31, the side of the connecting steel sheet 1 is connected to two channel steel columns 3, the bottom sides of the two channel steel columns 3 are connected to channel steel rods 4, a connecting piece 5 is arranged between the channel steel column 3 and the channel steel rod 4 and the steel box beam web 2, and two supporting pieces 6 are also arranged between the two channel steel columns 3;

[0027] The connecting member 5 includes an upper steel sheet 7, a lower steel sheet 8, an upper plug plate 9 and a lower plug plate 10. The upper steel sheet 7 is fixedly connected between the ends of the two channel steel columns 3, the lower steel sheet 8 is fixedly connected between the ends of the two channel steel rods 4, the upper plug plate 9 and the lower plug plate 10 are both fixedly connected to the sides of the steel box girder web 2, the upper steel sheet 7 and the upper plug plate 9 are both provided with a first screw hole 11, the lower steel sheet 8 and the lower plug plate 10 are provided with a second screw hole 12, and a limiting member 13 is connected to the side of the upper steel sheet 7 away from the upper plug plate 9.

[0028] In this embodiment, reference Figure 1The connecting steel sheet 1 is used to install two channel steel columns 3. The two channel steel columns 3 are welded to the connecting steel sheet 1, and then the corresponding two channel steel rods 4 are respectively welded to the bottom sides of the two channel steel columns 3, and the support members 6 are connected at the ends of the channel steel rods 4 and the channel steel columns 3. Figure 2 The channel steel column 3, the upper steel sheet 7 is welded between the ends of the two channel steel columns 3, the lower steel sheet 8 is welded between the ends of the two channel steel rods 4, and the first screw hole 11 and the second screw hole 12 are respectively opened on the upper steel sheet 7 and the lower steel sheet 8, and the upper steel sheet 7 and the lower steel sheet 8 are respectively inserted into the upper plug plate 9 and the lower plug plate 10, and then fixed with bolts. When the upper steel sheet 7 is inserted into the upper plug plate 9, the limiting member 13 is used for preliminary limiting, so that there is no need to hold the triangular bracket by hand, which improves the efficiency of bolt fixing;

[0029] refer to Figure 2 After the connecting parts 5 are fixed to the channel steel columns 3, the support parts 6 are used to support the steel pipes on the flange plate formwork. The triangular bracket is connected to the steel box girder web 2 to form a supporting structure, thereby supporting the flange plate formwork to facilitate the subsequent pouring of concrete in the flange plate formwork to form a complete flange plate. After the pouring and shaping, the triangular bracket can be directly disassembled. The triangular bracket can be quickly disassembled by tightening the bolts, which improves the efficiency of disassembly and assembly.

[0030] In addition, a base insert 31 is also connected to one side of the connecting steel sheet 1. When installing the guardrail, the bottom end of the guardrail can be inserted into the base insert 31 to protect the staff installing the tripod bracket to ensure the safety of the staff.

[0031] In a further preferred embodiment of the present invention, Figure 2 As shown, the channel steel rod 4 is inclined at the bottom side of the channel steel column 3 and is inclined downward toward the position close to the steel box girder web 2. Two supporting steel columns 14 are connected between the two channel steel columns 3. The bottom end of the supporting steel column 14 extends between the two channel steel rods 4 and is fixedly connected to the channel steel rod 4.

[0032] In this embodiment, reference Figure 2 The channel steel rod 4 is fixed to the bottom of the corresponding channel steel column 3. The channel steel rod 4 is inclined, and a supporting steel column 14 is connected between the two channel steel columns 3. The bottom end of the supporting steel column 14 is connected between the two channel steel rods 4, so that the channel steel rod 4, the channel steel column 3 and the supporting steel column 14 cooperate to form a triangle shape. The stability of the triangle is used to support the flange plate formwork, thereby ensuring the stability of the flange plate formwork during pouring.

[0033] In a further preferred embodiment of the present invention, Figure 2As shown, the support member 6 includes two positioning steel plates 15, and the two positioning steel plates 15 are respectively fixedly connected to the bottom side wall and the bottom side wall of the channel steel column 3. A screw rod 16 is arranged on the top side of the channel steel column 3. The bottom end of the screw rod 16 passes through the two positioning steel plates 15 and is slidingly connected to the positioning steel plates 15. A nut 17 is rotatably connected to the top side of the positioning steel plate 15 located above, and the nut 17 is threadedly connected to the screw rod 16. The top end of the screw rod 16 is connected to a positioning pipe seat 18.

[0034] In this embodiment, reference Figure 2 The support member 6 has two positioning steel plates 15 welded to the top and bottom sides of the two channel steel columns 3, so that when the screw rod 16 is threadedly connected to the corresponding two positioning steel plates 15, shaking can be avoided. In addition, the nut 17 can be rotated to drive the screw rod 16 to move up and down when the nut 17 rotates, so that the positioning pipe seat 18 can fit the bottom side steel pipe of the flange plate formwork, thereby supporting the flange plate formwork.

[0035] In a further preferred embodiment of the present invention, Figure 3 As shown, the limiting member 13 includes a limiting portion and an opening and closing portion, the limiting portion includes a rectangular column 19, the rectangular column 19 is fixedly connected to the side of the upper steel sheet 7 away from the upper insert plate 9, the two opposite sides of the rectangular column 19 are provided with grooves 20, a card plate 21 is slidably connected in the groove 20, a card slot 22 corresponding to the card plate 21 is provided on the side of the upper insert plate 9, and the end of the card plate 21 is inclined.

[0036] In this embodiment, reference Figure 3 The rectangular column 19 has grooves 20 formed on two opposite sides of the rectangular column 19, in which a card plate 21 is slidably connected, and a card slot 22 corresponding to the card plate 21 is formed on the upper plug plate 9. When installing the triangular bracket, the upper steel sheet 7 is inserted into the upper plug plate 9, during which the side edge of the upper plug plate 9 will be pressed against the inclined position of the end of the card plate 21, thereby pressing the card plate 21 to move away from the groove 20. As the upper steel sheet 7 moves into the upper plug plate 9, when the card plate 21 reaches the slot 22, the opening and closing portion will pull the card plate 21, and the inclined protrusion at the end of the card plate 21 will be inserted into the slot 22, thereby completing the effect of initially limiting the triangular bracket.

[0037] In a further preferred embodiment of the present invention, Figure 3As shown, the opening and closing portion includes an inner groove 23, and the inner groove 23 is opened in the rectangular column 19. Circular grooves 24 are opened on the two side walls of the inner groove 23 close to the two clamping plates 21. Two slide plates 25 are slidably connected in the inner groove 23. A first spring 26 is connected between the corresponding slide plates 25 and the clamping plates 21, and a second spring 27 is connected between the two slide plates 25. A control part 28 is arranged on the top of the inner groove 23.

[0038] In this embodiment, reference Figure 3 In the rectangular column 19, in the opening and closing part, the inner groove 23 is opened in the rectangular column 19, and two slide plates 25 are slidably connected in the inner groove 23. The two slide plates 25 are respectively connected to the two card plates 21 with a first spring 26, wherein the circular groove 24 is used to avoid the first spring 26, and the second spring 27 is connected between the two slide plates 25. When the two card plates 21 are squeezed by the side edges of the upper plug plate 9, they will slide in the corresponding groove 20, and then pull the corresponding first spring 26, and the first spring 26 will be stretched. When the end of the card plate 21 reaches the card groove 22, the card plate 21 will be pulled back by the first spring 26, so that the end of the card plate 21 is inserted into the corresponding card groove 22. At this time, the triangular bracket has completed the preliminary definition. When it is fixed by bolts, there is no need to hold the triangular bracket by hand, and the triangular bracket can be quickly bolted.

[0039] In a further preferred embodiment of the present invention, Figure 3 As shown, the control member 28 includes two trapezoidal blocks 29, and the two trapezoidal blocks 29 are respectively fixedly connected to the top sides of the two slides 25. The top side of the rectangular column 19 is threadedly connected with a driving stud 30, and the bottom end of the driving stud 30 is inserted into the inner groove 23 and is located between the two trapezoidal blocks 29. The bottom end of the driving stud 30 is in contact with the two trapezoidal blocks 29.

[0040] In this embodiment, reference Figure 3 The two trapezoidal blocks are respectively connected to the top sides of the corresponding slide plates 25. When disassembly is required, the driving stud 30 is rotated, and the driving stud 30 will move downward, thereby squeezing the two trapezoidal blocks. The two trapezoidal blocks are right-angled trapezoids, and the inclined surfaces of the two trapezoidal blocks are in contact with the driving stud 30. Therefore, when the driving stud 30 moves downward, it will squeeze the trapezoidal blocks, so that the trapezoidal blocks 29 move toward the corresponding card plate 21, thereby driving the slide plate 25 to move toward the corresponding card plate 21, so that the first spring 26 is compressed and the second spring 27 is stretched. The compression of the first spring 26 will cause the other end to push the card plate 21, thereby driving the end of the card plate 21 to disengage from the corresponding card slot 22, thereby completing the disassembly;

[0041] After the disassembly is completed, the driving stud 30 is rotated to move the driving stud 30 upward. When the driving stud 30 moves upward, the extrusion force on the two trapezoidal blocks 29 gradually decreases, and the tension force on the second spring 27 gradually decreases, so that it will retract, and then pull the two first springs 26 to retract. The retraction of the first spring 26 will pull the card plate 21 back to its original position for subsequent reuse.

[0042] The embodiments of this specific implementation method are all preferred embodiments of the present invention, and are not intended to limit the protection scope of the present invention. Therefore, any equivalent changes made based on the structure, shape, and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A triangular bracket for concrete construction of flange plates of steel-concrete composite beams, comprising a connecting steel sheet (1) and a steel box beam web (2), wherein one side of the connecting steel sheet (1) is connected to a base insert (31), characterized in that: Two channel steel columns (3) are connected to the sides of the connecting steel sheet (1), the bottom sides of the two channel steel columns (3) are connected to channel steel rods (4), connecting members (5) are provided between the channel steel columns (3) and the channel steel rods (4) and the web plate (2) of the steel box beam, and two supporting members (6) are also provided between the two channel steel columns (3); The connecting member (5) comprises an upper steel sheet (7), a lower steel sheet (8), an upper plug plate (9) and a lower plug plate (10); the upper steel sheet (7) is fixedly connected between the ends of the two channel steel columns (3); the lower steel sheet (8) is fixedly connected between the ends of the two channel steel rods (4); the upper plug plate (9) and the lower plug plate (10) are both fixedly connected to the sides of the web plate (2) of the steel box beam; the upper steel sheet (7) and the upper plug plate (9) are both provided with a first screw hole (11); the lower steel sheet (8) and the lower plug plate (10) are provided with a second screw hole (12); and a limiting member (13) is connected to a side of the upper steel sheet (7) away from the upper plug plate (9).

2. A triangular bracket for concrete construction of flange slab of steel-concrete composite beam according to claim 1, characterized in that: The channel steel rod (4) is arranged obliquely on the bottom side of the channel steel column (3) and is inclined downward toward a position close to the web plate (2) of the steel box beam. Two supporting steel columns (14) are connected between the two channel steel columns (3). The bottom end of the supporting steel column (14) extends between the two channel steel rods (4) and is fixedly connected to the channel steel rod (4).

3. A triangular bracket for concrete construction of flange slab of steel-concrete composite beam according to claim 2, characterized in that: The support member (6) includes two positioning steel sheets (15), the two positioning steel sheets (15) are respectively fixedly connected to the bottom side wall and the bottom side wall of the channel steel column (3), a screw rod (16) is arranged on the top side of the channel steel column (3), the bottom end of the screw rod (16) passes through the two positioning steel sheets (15) and is slidably connected to the positioning steel sheets (15), a nut (17) is rotatably connected to the top side of the positioning steel sheet (15) located above, the nut (17) is threadedly connected to the screw rod (16), and the top end of the screw rod (16) is connected to a positioning pipe seat (18).

4. A triangular bracket for concrete construction of flange slab of steel-concrete composite beam according to claim 3, characterized in that: The limiting member (13) comprises a limiting portion and an opening and closing portion, wherein the limiting portion comprises a rectangular column (19), wherein the rectangular column (19) is fixedly connected to a side of the upper steel sheet (7) away from the upper insert plate (9), and grooves (20) are provided on two opposite sides of the rectangular column (19), wherein a card plate (21) is slidably connected in the groove (20), and a card slot (22) corresponding to the card plate (21) is provided on the side of the upper insert plate (9), and the end of the card plate (21) is inclined.

5. A triangular bracket for concrete construction of flange slab of steel-concrete composite beam according to claim 4, characterized in that: The opening and closing portion comprises an inner groove (23), the inner groove (23) being arranged in the rectangular column (19), and circular grooves (24) being arranged on two side walls of the inner groove (23) close to the two clamping plates (21), two slide plates (25) being slidably connected in the inner groove (23), a first spring (26) being connected between the corresponding slide plates (25) and the clamping plates (21), and a second spring (27) being connected between the two slide plates (25), and a control member (28) being arranged at the top of the inner groove (23).

6. A triangular bracket for concrete construction of flange slab of steel-concrete composite beam according to claim 5, characterized in that: The control member (28) comprises two trapezoidal blocks (29), the two trapezoidal blocks (29) are respectively fixedly connected to the top sides of the two slide plates (25), the top side of the rectangular column (19) is threadedly connected with a driving stud (30), the bottom end of the driving stud (30) is inserted into the inner groove (23) and is located between the two trapezoidal blocks (29), and the bottom end of the driving stud (30) is in contact with the two trapezoidal blocks (29).

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