CN220013390U - Sideslip-preventing double-jack type long cantilever bent cap template bracket system - Google Patents

Abstract

The utility model discloses an sideslip-preventing double-jack type long cantilever bent cap template bracket system, which comprises: a bracket body; the fixed ends of the supporting pieces are placed on the limiting pieces arranged in pairs through the mounting seats, and the working ends of the supporting pieces are overlapped with the bracket body; the limiting piece is arranged in a preformed hole of the bridge pier column in a penetrating way; the bottom support bodies are symmetrically arranged at two sides of the upper end of the top of the bracket body; the bottom die supporting frames are respectively arranged above the bottom supporting bodies; the middle support body is arranged in the middle of the top end of the bracket body; the side protection support body frames are symmetrically arranged on two sides of the upper part of the bracket body; the end supporting bodies are symmetrically arranged at two ends of the side protection supporting body. The utility model can ensure the construction safety of the long cantilever bent cap, ensure the deformation of the cantilever end of the bent cap within the standard allowable range, ensure the construction quality and facilitate the installation and the disassembly.

Description

Sideslip-preventing double-jack type long cantilever bent cap template bracket system

Technical Field

The utility model relates to a formwork bracket system, in particular to an sideslip-preventing double-jack type long cantilever bent cap formwork bracket system, and belongs to the technical field of highway bridge engineering construction.

Background

Generally, with the development of highway engineering bridge construction technology, the long cantilever prestressed bent cap is increasingly commonly applied to bridge engineering. However, for mountain highway bridge engineering, due to the limitation of landform, the bridge pier column height is often very large, and if a traditional full framing is adopted for long cantilever bent cap construction, the cost is greatly increased, and the safety and construction period risks are difficult to control. Meanwhile, for the cantilever structure, if the rigidity of the bottom support of the template is insufficient, cracks are very easy to form on the bent cap, and a large quality hidden trouble is formed. For the construction of a long cantilever bent cap of a high pier column, an economic, safe and quality-controllable template bottom support must be studied. To address this problem, research improvements must be made to the long cantilever capping beam form bottom support.

Therefore, it is necessary to develop a sideslip-preventing long cantilever bent cap template bracket system with high safety and high working reliability.

Disclosure of Invention

Aiming at the defects and shortcomings existing in the background technology, the utility model improves and innovates the defects, and aims to provide the cantilever end deformation of the capping beam within the standard allowable range and the construction quality, which has the advantages of simple structure, novel and reasonable design, high safety, enough rigidity, strength and stability, and capability of ensuring the construction safety of the long cantilever capping beam. Meanwhile, the installation and the disassembly are convenient, the construction efficiency can be obviously improved, the construction quality is ensured, and the later maintenance cost is reduced.

The utility model further aims to realize that the long cantilever bent cap template support has enough rigidity, so that the bent cap cantilever end is extremely small in deformation, and cracks are avoided; and because the double jacks are adopted as supports and a stable truss system is adopted, the problems of sliding or instability of the bracket are avoided.

In order to solve the problems and achieve the aim of the utility model, the sideslip-preventing double-jack type long cantilever bent cap template bracket system is realized by adopting the following design structure and the following technical scheme:

an anti-sideslip double jack long cantilever bent cap template bracket system, comprising:

the bracket body (1) is used for supporting the long cantilever cover beam template;

the fixed ends of the supporting pieces (2) are placed on limiting pieces (4) arranged in pairs through mounting seats (3), and the working ends of the supporting pieces (2) are overlapped with the bracket body (1) to form a supporting system of the bracket body (1);

the limiting piece (4) is penetrated into a reserved hole of the bridge pier column;

the bottom support bodies (5) are symmetrically arranged at two sides of the upper end of the top of the bracket body (1);

the bottom die supporting frames (6) are respectively arranged above the bottom supporting bodies (5) and are used as a bracket system of the capping beam bottom die;

the middle support body (7), the middle support body (7) is set up in the top middle part of the bracket body (1);

the side protection support bodies (8) are symmetrically arranged on two sides of the upper part of the bracket body (1);

the end supporting bodies (9) are symmetrically arranged at two ends of the side protection supporting body (8); and each end supporting body (9) is respectively arranged at the end of each bottom die supporting frame (6) through a counter-pulling screw rod to form an integral stress structure.

Preferably, the bracket body (1) includes:

the upper bracket chords (1 a) are two opposite to each other, and the two upper bracket chords (1 a) are detachably connected into a whole through a counter-pulling screw;

the bracket lower chord beams (1 b) are two in opposite parallel arrangement, and the two bracket lower chord beams (1 b) are detachably connected into a whole through a counter-pulling screw;

the bracket web girder (1 c) is symmetrically connected between the bracket upper chord girder (1 a) and the bracket lower chord girder (1 b) to form a whole.

Preferably, the bracket upper chord beam (1 a), the bracket lower chord beam (1 b) and the bracket web beam (1 c) are all I-steel.

Preferably, the support (2) is a jack;

the mounting seat (3) is U-shaped or C-shaped channel steel with an upward opening.

Preferably, the limiting piece (4) is a supporting round steel or a reinforcing steel bar;

the bottom support body (5) and the middle support body (7) are all formed by connecting a plurality of square steels in rows at equal intervals or at unequal intervals on the bracket body (1) to form a hollowed-out junction frame body.

Preferably, the bottom die supporting frame (6) comprises:

a first support (6 a),

the second support frame (6 b), the second support frame (6 b) connects the first support frame (6 a), form the whole;

and the first supporting frame (6 a) and the second supporting frame (6 b) are triangular brackets formed by mutually splicing and welding a plurality of U-shaped or C-shaped groove steel.

Preferably, the side protection support body (8) is formed by connecting and splicing a plurality of protection templates (8 a) with different shapes and sizes through bolt assemblies in sequence.

Preferably, the end support body (9) comprises:

the L-shaped brackets (9 a) are two opposite and parallel to each other;

a support plate (9 b), wherein the support plate (9 b) is connected to the top surface of the L-shaped bracket (9 a);

an end plate (9 c), wherein the end plate (9 c) is detachably mounted on one side end of the L-shaped bracket (9 a) through a counter-pulling screw.

Preferably, the L-shaped bracket (9 a) is composed of a transverse I-steel and a vertical I-steel vertically connected to the end part of any one end of the transverse I-steel.

Preferably, the method further comprises:

enclose fender (10), enclose fender (10) and enclose and locate the top of bottom sprag body (5) and well supporting body (7) all around, wherein, enclose fender (10) and adopt light-duty assembled wire net and supporting bar preparation interconnect to form.

The working principle is as follows: the sideslip-preventing double-jack type long cantilever bent cap template bracket system with the design structure needs to be installed for standby before being used.

When the support frame is installed, the truss type bracket consisting of the bracket upper chord beam (1 a), the bracket lower chord beam (1 b) and the bracket web beam (1 c) is used as a support of a long cantilever cover beam template, the bracket body (1) is hung and installed on a support system consisting of a support piece (2), an installation seat (3) and a limiting piece (4), the bracket upper chord beam (1 a) is paved with a bottom support body (5), the bottom die support frame (6) is arranged on the bottom support body, the bracket body (1) is tied by adopting a counter-pulling screw, and the top edge of the bracket body is provided with a fence (10).

When the bridge pier column is particularly used, the limiting piece (4) is inserted into the reserved hole of the bridge pier column (11), the mounting seat (3) is placed on the limiting piece (4), the supporting piece (2) is placed in the mounting seat (3), and the height of the supporting piece (2) is adjusted. Secondly, the welded bracket body (1) is lifted and placed on the supporting piece (2), and the height difference of the supporting piece (2) is adjusted again, so that the transverse slope of the top surface of the bracket upper chord beam (1 a) is consistent with the transverse slope of the cover beam. And the end supporting bodies (9) at the left side and the right side of the pier column (11) are tied together by adopting opposite-pulling screws. And uniformly laying a bottom support body (5) on the top surface of the upper chord beam (1 a) of the bracket, and performing spot welding. And (3) measuring and paying off again, placing a bottom die supporting frame (6) on the bottom supporting body (5), installing the end supporting body (9) at the same time, and finally installing the enclosure (10), so that the corresponding construction procedure of the subsequent step can be performed after the completion of the whole construction procedure.

Compared with the prior art, the utility model has the following beneficial effects:

1. the cantilever end deformation protection device is simple and convenient in structure, novel and reasonable in design, high in safety, and capable of having enough rigidity, strength and stability, guaranteeing the construction safety of the long cantilever bent cap, guaranteeing the deformation of the cantilever end of the bent cap within a standard allowable range and guaranteeing the construction quality. Meanwhile, the installation and the disassembly are convenient, the construction efficiency can be obviously improved, the construction quality is ensured, and the later maintenance cost is reduced;

2. the utility model solves the problem of insufficient rigidity caused by the conventional single-type steel support in the construction of the long cantilever bent cap, replaces the embedded diagonal bracing bracket with complicated procedures, has simple structure, is convenient and quick to install, and has better molding quality after the die is removed;

3. by using the utility model, the long cantilever bent cap template support has enough rigidity, so that the bent cap cantilever end is extremely small in deformation, and the occurrence of cracks is avoided; the double jacks are adopted as the support, and the stable truss system is adopted, so that the problems of sliding or instability of the bracket are avoided;

4. the utility model has firm connection and installation, is convenient to prefabricate and assemble, can realize efficient assembly and disassembly, is convenient for turnover use, improves the use efficiency, ensures the construction safety and quality of the long cantilever bent cap of the high pier column, is convenient and quick to assemble and disassemble, and reduces the labor intensity of construction operators to the maximum extent;

5. the rust-proof layer and the waterproof layer are coated on the outside of the bracket system, so that the rust can be prevented, the service life of the whole device is prolonged, the environment is protected, the resources are saved, meanwhile, the self-luminous fluorescent material is coated on the outside of the bracket system, the position of the bracket system can be clearly marked at night or in a dark room and in an underground construction environment, the safety prompt effect can be effectively played, the conspicuity is improved, the identification is easy for people, and the safety in construction and life is increased;

6. the bracket system body is in a truss type, the rigidity of the bent cap template support is greatly increased, the bracket system is installed in an assembly type mode, and a safety enclosure is attached, so that the deformation of the cantilever end of the long cantilever bent cap in a controlled range is guaranteed, the generation of concrete cracks is prevented, the integral stress stability of the bracket system can be guaranteed, instability or sideslip does not occur, meanwhile, the whole bracket system is convenient to install and detach, construction is convenient, and the safety and quality problems faced by the construction of the long cantilever bent cap are effectively solved.

Drawings

The utility model is described in further detail below with reference to the attached drawing figures, wherein:

FIG. 1 is a schematic illustration of the use of the present utility model;

FIG. 2 is a second schematic view of the present utility model in use;

FIG. 3 is a schematic view of the overall structure of the present utility model;

FIG. 4 is a third schematic view of the present utility model in use;

FIG. 5 is a schematic view showing the overall structure of the first support frame (6 a) of the present utility model;

FIG. 6 is a second schematic view of the overall structure of the first support frame (6 a) component of the present utility model;

FIG. 7 is a schematic view showing the overall structure of the second supporting frame (6 b) component of the present utility model;

FIG. 8 is a schematic view of the overall structure of the form (8 a) component of the present utility model;

FIG. 9 is a second schematic view of the overall construction of the form (8 a) component of the present utility model;

FIG. 10 is a schematic illustration of one of the overall structures of another design of the form (8 a) component of the present utility model;

FIG. 11 is a second schematic overall structure of another design of the form (8 a) component of the present utility model;

FIG. 12 is a schematic illustration of the overall structure of yet another design of the form (8 a) component of the present utility model;

FIG. 13 is one of the overall structural schematic diagrams of yet another design of the form (8 a) component of the present utility model;

FIG. 14 is a second schematic view of the overall structure of yet another design of the form (8 a) component of the present utility model;

FIG. 15 is a second schematic view of the overall structure of yet another design of the form (8 a) component of the present utility model;

FIG. 16 is one of the schematic views of the overall structure of the components of the end support body (9) of the present utility model;

FIG. 17 is a second schematic view of the overall structure of the components of the end support body (9) of the present utility model;

FIG. 18 is a schematic view of the overall construction of the components of the enclosure (10) of the present utility model;

wherein, the reference numerals in the figures: 1-a bracket body, 1 a-a bracket upper chord beam, 1 b-a bracket lower chord beam and 1 c-a bracket web beam;

2-a support;

3-a mounting seat;

4-a limiting piece;

5-a bottom support body;

6-a bottom die supporting frame, 6 a-a first supporting frame, 6 b-a second supporting frame;

7-a middle support body;

8-a side protection support body and 8 a-a template;

9-an end support body, 9 a-an L-shaped bracket, 9 b-a support plate, 9 c-an end plate;

10-enclosing;

11-pier column.

Detailed Description

In order to make the technical means, the inventive features, the achieved objects and the effects of the present utility model easy to understand, the technical solution of the present utility model will be described in further detail below with reference to the accompanying drawings and the detailed description, and it should be noted that the embodiments of the present utility model and the features of the embodiments can be combined without conflict. The utility model will be described in detail below with reference to the drawings in connection with embodiments.

An anti-sideslip double jack type long cantilever bent cap template bracket system as shown in the attached drawing of the specification, comprising:

the bracket body 1 is used for supporting a long cantilever cover beam template;

the fixed ends of the supporting pieces 2 are placed on the limiting pieces 4 arranged in pairs through the mounting seats 3, and the working ends of the supporting pieces 2 are overlapped with the bracket body 1 and are used for forming a supporting system of the bracket body 1;

the limiting piece 4 is arranged in a preformed hole of the bridge pier column in a penetrating way;

the bottom support bodies 5 are symmetrically arranged at two sides of the upper end of the top of the bracket body 1;

the bottom die supporting frames 6 are respectively arranged above the bottom supporting bodies 5 and are used as a bracket system of the capping beam bottom die;

the middle support body 7 is arranged in the middle of the top end of the bracket body 1;

the side protection support bodies 8 are symmetrically arranged on two sides of the upper part of the bracket body 1;

the end supporting bodies 9 are symmetrically arranged at two ends of the side protection supporting body 8; and each end supporting body 9 is respectively arranged at the end of each bottom die supporting frame 6 through a counter-pulling screw rod to form an integral stress structure.

In the utility model, the bracket upper chord beam 1a, the bracket lower chord beam 1b and the bracket web beam 1c are connected into a truss type through welding. Bolt holes are reserved on the bracket upper chord beam 1a and the bracket lower chord beam 1b and are used as counter-pulling holes of counter-pulling screws, and finish rolling screw steels are adopted for the counter-pulling screws.

Two holes are reserved in advance on the bridge pier column, the limiting piece 4 is inserted into the two holes, and the installation seat 3 is placed at the cantilever end of the limiting piece 4. The mounting base 3 adopts channel steel, and the length of the mounting base can meet that two ends of the mounting base are just lapped on the bracket web girder 1 c. Two supporting pieces 2 are respectively placed on two sides of the bridge pier, and are placed on the mounting seats 3. The height of the supporting piece 2 is adjusted so that the top surface elevation of the single bracket unit meets the bottom elevation requirement of the bent cap.

The bottom support body 5 and the middle support body 7 are made of small-sized I-shaped steel, are uniformly paved on the top surface of the upper chord beam 1a of the bracket, and are spot-welded to prevent sliding. The bottom die supporting frame 6 is formed by welding small-sized channel steel, and the length and the gradient of the bottom die supporting frame are determined according to the bevel edge of the bottom of the bent cap.

Further, the bracket body 1 includes:

the bracket upper chord beams 1a are two opposite to each other, and the two bracket upper chord beams 1a are detachably connected into a whole through a counter-pulling screw rod;

the bracket lower chord beams 1b are two in opposite parallel arrangement, and the two bracket lower chord beams 1b are detachably connected into a whole through a counter-pulling screw rod;

the bracket web beam 1c is symmetrically connected between the bracket upper chord beam 1a and the bracket lower chord beam 1b to form a whole.

Specifically, the bracket upper chord beam 1a, the bracket lower chord beam 1b and the bracket web beam 1c are all i-steel.

In the present utility model, the bracket upper bridge 1a and the bracket lower bridge 1b and the bracket web beam 1c may be square steel or square pipe.

Further, the support 2 is a jack;

the mounting seat 3 is U-shaped or C-shaped channel steel with an upward opening.

Further, the limiting piece 4 is a supporting round steel or a reinforced steel bar;

the bottom support body 5 and the middle support body 7 are all formed by connecting a plurality of square steel bars in rows and equidistantly or unequally arranged on the bracket body 1 to form a hollow junction frame body.

Further, the bottom die supporting frame 6 includes:

the first support frame 6a is provided with a first support,

the second support frame 6b, the second support frame 6b connects the first support frame 6a, form the whole;

and the first supporting frame 6a and the second supporting frame 6b are triangular brackets formed by mutually splicing and welding a plurality of U-shaped or C-shaped groove steel.

Further, the side protection support body 8 is formed by sequentially connecting and splicing a plurality of protection templates 8a with different shapes and sizes through bolt assemblies.

In the present utility model, the protection form 8a is formed by splicing and connecting a square plate-shaped body, a U-shaped channel steel and an L-shaped angle steel.

Further, the end support body 9 includes:

the L-shaped brackets 9a, the L-shaped brackets 9a are two which are arranged in parallel relative to each other;

a support plate 9b, the support plate 9b being attached to the top surface of the L-shaped bracket 9 a;

an end plate 9c, the end plate 9c being detachably attached to one side end of the L-shaped bracket 9a by a pair of pull screws.

Specifically, the L-shaped bracket 9a is composed of a transverse i-beam and a vertical i-beam vertically connected to the end of either end of the transverse i-beam.

More specifically, the method further comprises:

enclose and keep off 10, enclose and keep off 10 and enclose and locate the bottom sprag body 5 and well support body 7 around the top, wherein, enclose and keep off 10 and adopt light-duty assembled wire net and supporting steel preparation interconnect to form, the convenient ann tears open.

The outer surfaces of the bracket body 1, the supporting piece 2, the mounting seat 3, the limiting piece 4, the bottom die supporting frame 6 of the bottom supporting body 5, the middle supporting body 7, the side protection supporting body 8, the end supporting body 9 and the enclosure 10 are sequentially provided with an injection molding layer, a rust-proof layer, a waterproof layer and a warning layer from inside to outside, and fluorescent powder is coated on the warning layer.

In the utility model, a high molecular wear-resistant material is injected on the injection layer; the rust-proof layer comprises an epoxy zinc-rich primer and a chlorinated rubber finish paint and an epoxy cloud iron intermediate paint positioned between the epoxy zinc-rich primer and the chlorinated rubber finish paint; the waterproof layer is polyurethane waterproof paint; the warning layer is a reflective warning tape or a reflective color film or reflective paint which are mixed with each other in single color or multiple colors.

Meanwhile, in the utility model, the connection is fixed connection or movable connection or detachable connection, wherein the fixed connection is welded connection or directly processed into an integrated structure; the movable connection or the detachable connection or the split structure is hinged connection, internal and external threaded connection, bayonet connection, plug socket connection or bolt assembly connection or screw connection.

In summary, more specific embodiments of the present utility model are:

the application steps of the utility model are as follows: 1, preliminarily determining the lengths and the sizes of an upper chord beam 1a of a bracket, a lower chord beam 1b of the bracket and a web beam 1c of the bracket according to the length and the overall size of a cantilever of the cover beam, carrying out stress checking to ensure that the strength, the deformation and the stability meet the requirements, finally determining the shape of the bracket, and carrying out prefabrication assembly or connection in a factory;

2, determining the positions of left and right pier stud supporting round steel 5 according to the transverse slope of the capping beam, and embedding a corrugated pipe as a reserved hole of the supporting round steel 5 before pouring the pier stud;

3, inserting a limiting piece 4 into the reserved hole of the pier stud, placing a mounting seat 3 on the limiting piece 4 group, placing the supporting piece 2 into the mounting seat 3, and adjusting the height of the supporting piece 2;

4, lifting and placing the welded bracket body 1 on the supporting piece 2, and adjusting the height difference of the supporting piece 2 again to enable the transverse slope of the top surface of the bracket upper chord beam 1a to be consistent with the transverse slope of the cover beam;

5, adopting opposite-pull screws to tie the end supporting bodies 9 at the left side and the right side of the bridge pier 11 together;

and 6, uniformly laying a bottom support body 5 on the top surface of the upper chord beam 1a of the bracket, and performing spot welding.

7, measuring and paying off, and placing a bottom die supporting frame 6 on the bottom supporting body 5;

8, installing a fence 11;

9, performing subsequent operations such as capping beam steel bar installation, template installation, concrete pouring and the like;

and after the maintenance of the 10-bent cap is finished, the bracket is removed according to the principle of supporting and then removing, and the bracket is recycled.

In the whole implementation operation process, the bracket upper chord beam 1a adopts 63#b type I-steel, and the bracket lower chord beam 1b and the bracket web beam 1c adopt 45#b type I-steel. The net distance between the bracket upper chord beam 1a and the bracket lower chord beam 1b is determined according to 2.5 m-3.0 m, and the bracket web beam 1c is determined according to 45-60 degrees of inclined angle. Welding is carried out among the three parts by adopting gas shielded welding, so that the welding quality is ensured. The bracket upper chord beam 1a and the bracket lower chord beam 1b are oppositely pulled by adopting opposite pulling screws at the positions close to the side edges of the pier stud, so that the bracket is prevented from sliding, and the other positions are oppositely pulled at intervals of 1 m. M20 finish rolling screw thread steel is adopted for the counter-pulling screw.

The mounting seat 3 in the utility model adopts 22#a channel steel, the limiting piece 4 adopts phi 100mm steel bars, and the supporting piece 2 adopts 50t self-locking jacks. The single pier stud adopts 2 supporting pieces 2 on one side, and the contact point between the upper chord beam 1a of the bracket and the jack is increased while sufficient supporting force is provided, so that the bracket can be further prevented from sliding. The positions of the left pier stud jack and the right pier stud jack are determined by the transverse slope of the capping beam, so that the height difference of the jacks at the two sides is consistent with the transverse slope of the capping beam.

According to the utility model, the bottom support body 5 and the middle support body 7 are made of 10# I-steel, the spacing is arranged according to 50cm, the bottom support body 5 and the middle support body 7 are spot-welded with the upper chord beam 1a of the bracket to prevent sliding, and meanwhile, hollow cavities for the bridge pier to penetrate out are reserved between the middle support body 7 and the two bottom support bodies 5 respectively.

Finally, it should be noted that the above-mentioned embodiments illustrate rather than limit the utility model in any way, and that those skilled in the art will be able to utilize the above-mentioned embodiments and modifications of the utility model as well as equivalent embodiments. However, any simple modification, equivalent variation and variation of the above embodiments according to the technical substance of the present utility model still fall within the protection scope of the technical solution of the present utility model.

Claims (10)

1. The utility model provides a long cantilever bent cap template bracket system of two jack formula that sideslips of preventing which characterized in that includes:

the bracket body (1) is used for supporting the long cantilever cover beam template;

the fixed ends of the supporting pieces (2) are placed on limiting pieces (4) arranged in pairs through mounting seats (3), and the working ends of the supporting pieces (2) are overlapped with the bracket body (1) to form a supporting system of the bracket body (1);

the limiting piece (4) is penetrated into a reserved hole of the bridge pier column;

the bottom support bodies (5) are symmetrically arranged at two sides of the upper end of the top of the bracket body (1);

the bottom die supporting frames (6) are respectively arranged above the bottom supporting bodies (5) and are used as a bracket system of the capping beam bottom die;

the middle support body (7), the middle support body (7) is set up in the top middle part of the bracket body (1);

the side protection support bodies (8) are symmetrically arranged on two sides of the upper part of the bracket body (1);

the end supporting bodies (9) are symmetrically arranged at two ends of the side protection supporting body (8); and each end supporting body (9) is respectively arranged at the end of each bottom die supporting frame (6) through a counter-pulling screw rod to form an integral stress structure.

2. A sideslip prevention double jack long cantilever bent cap formwork bracket system as claimed in claim 1, wherein said bracket body (1) comprises:

the upper bracket chords (1 a) are two opposite to each other, and the two upper bracket chords (1 a) are detachably connected into a whole through a counter-pulling screw;

the bracket lower chord beams (1 b) are two in opposite parallel arrangement, and the two bracket lower chord beams (1 b) are detachably connected into a whole through a counter-pulling screw;

the bracket web girder (1 c) is symmetrically connected between the bracket upper chord girder (1 a) and the bracket lower chord girder (1 b) to form a whole.

3. The sideslip prevention double jack type long cantilever bent cap template bracket system according to claim 2, wherein the bracket upper chord beam (1 a) and the bracket lower chord beam (1 b) and the bracket web beam (1 c) are all I-shaped steel.

4. A sideslip prevention double jack type long cantilever bent cap formwork bracket system as claimed in claim 1, wherein said support (2) is a jack;

the mounting seat (3) is U-shaped or C-shaped channel steel with an upward opening.

5. The sideslip prevention double jack type long cantilever bent cap template bracket system according to claim 1, wherein the limiting piece (4) is a supporting round steel or a reinforcing steel bar;

the bottom support body (5) and the middle support body (7) are all formed by arranging and connecting a plurality of square steels on the bracket body (1) in rows at equal intervals.

6. The sideslip prevention double jack type long cantilever bent cap formwork bracket system as claimed in claim 1, wherein the bottom formwork support frame (6) comprises:

a first support (6 a),

the second support frame (6 b), the second support frame (6 b) connects the first support frame (6 a), form the whole;

and the first supporting frame (6 a) and the second supporting frame (6 b) are triangular brackets formed by mutually splicing and welding a plurality of U-shaped or C-shaped groove steel.

7. The sideslip-preventing double-jack type long cantilever bent cap formwork bracket system according to claim 1, wherein the side protection support body (8) is formed by connecting and splicing a plurality of protection formworks (8 a) with different shapes and sizes with each other sequentially through bolt assemblies.

8. A sideslip prevention double jack type long cantilever bent cap formwork bracket system as claimed in claim 1, wherein said end support body (9) comprises:

the L-shaped brackets (9 a) are two opposite and parallel to each other;

a support plate (9 b), wherein the support plate (9 b) is connected to the top surface of the L-shaped bracket (9 a);

an end plate (9 c), wherein the end plate (9 c) is detachably mounted on one side end of the L-shaped bracket (9 a) through a counter-pulling screw.

9. The sideslip prevention double jack type long cantilever bent cap template bracket system according to claim 8, wherein the L-shaped bracket (9 a) is composed of a transverse I-shaped steel and a vertical I-shaped steel vertically connected with any end part of the transverse I-shaped steel.

10. An anti-sideslip double jack long cantilever capping beam formwork bracket system in accordance with any one of claims 1 to 9, further comprising:

enclose fender (10), enclose fender (10) and enclose and locate the top of bottom sprag body (5) and well supporting body (7) all around, wherein, enclose fender (10) and adopt light-duty assembled wire net and supporting bar preparation interconnect to form.