CN217536731U

CN217536731U - Assembled cantilever bent cap bracket

Info

Publication number: CN217536731U
Application number: CN202221602313.0U
Authority: CN
Inventors: 朱晓伟; 黄剑琪; 张建伟; 魏宇飞; 董龙峰
Original assignee: Urban Construction Co Ltd of China Railway 17th Bureau Group Co Ltd
Current assignee: Urban Construction Co Ltd of China Railway 17th Bureau Group Co Ltd
Priority date: 2022-06-24
Filing date: 2022-06-24
Publication date: 2022-10-04
Anticipated expiration: 2032-06-24

Abstract

The utility model provides an assembly type cantilever bent cap bracket, which comprises four unloading blocks which are arranged in a rectangle, wherein steel pipe upright posts are respectively arranged on the four unloading blocks, and two steel box girders are arranged at the tops of the steel pipe upright posts; a first inclined strut and a second inclined strut are arranged below two ends of each of the two steel box girders, two ends of the first inclined strut are respectively connected to the steel box girders and the steel pipe upright posts, and two ends of the second inclined strut are respectively connected with the first inclined strut and the steel pipe upright posts; a cross-linked steel pipe is arranged above the two long edges of the rectangle, and the two ends of the cross-linked steel pipe are connected with the steel pipe upright posts; connecting rods are respectively arranged between the two transverse connection steel pipes, between the two steel box girders and between every two adjacent steel upright posts; the steel upright posts are provided with pier body hoops, and the upper surfaces of the steel box girders are uniformly distributed with distribution girders along the length direction of the steel box girders. The utility model discloses can realize the construction of big cantilever prestressing force bent cap, bent cap bracket and construction access way passageway mutual noninterference have reduced the interior interim area occupation of land of environmental protection district.

Description

Assembled cantilever bent cap bracket

Technical Field

The utility model relates to a bent cap bracket technical field, concretely relates to assembled cantilever bent cap bracket.

Background

The capping beams are usually placed on top of the pier studs of the road and bridge and are used to receive the substructure and also an important part of the beam slab. The construction of the bent cap mainly adopts a cast-in-place method, and before pouring, the bent cap bracket provides a platform for personnel to implement various operations. In order to ensure quality and safety, various problems caused by the deformation of the bracket are prevented. Currently used bent cap brackets mainly include the following categories: (1) a floor stand: (2) a hoop cantilever frame; (3) and burying the bracket. Wherein, the construction of the conventional large cantilever prestressed bent cap generally adopts a floor bracket system. The floor support is characterized in that a steel pipe support is arranged at the lower part of a cover beam to form a full-hall type support, and then a template, a tray and square timber are erected on the full-hall type support and the support.

Although the floor support can realize the construction of a large cantilever prestressed capping beam with the length of more than 30 meters, the lower part of a support system is occupied by a steel pipe support, the steel pipe support cannot pass through the support system, and a construction access road needs to be built again. In some areas, the road and bridge municipal construction is short of land resources, and land acquisition cost is too high. Moreover, if a plurality of parallel municipal roads are planned under the bridge to be constructed, even multi-land acquisition cannot be realized, so that construction is difficult. In addition, the floor support system is independent parts in installation and disassembly, the steel consumption is large, the installation and disassembly construction period is relatively long, and the safety risk is large.

SUMMERY OF THE UTILITY MODEL

The utility model discloses the technical problem that will solve is: the fabricated cantilever beam bracket is provided, and under the premise of realizing the construction of a large cantilever prestressed bent cap with the length of more than 30 meters, the construction use of a construction access channel is not influenced; furthermore, the utility model discloses still solve the big cantilever beam bracket installation cycle of tradition length, the problem that the risk is big.

The utility model provides an above-mentioned technical problem's technical scheme as follows:

the utility model provides an assembly type cantilever bent cap bracket, which comprises four unloading blocks which are arranged in a rectangle, wherein steel pipe upright posts are respectively arranged on the four unloading blocks, two steel box girders are arranged at the tops of the steel pipe upright posts, and the two steel box girders are respectively just opposite to two long edges of the rectangle; a first inclined strut and a second inclined strut are arranged below two ends of each of the two steel box girders, two ends of the first inclined strut are respectively connected to the lower surface of each steel box girder and the middle part of each steel pipe upright, and two ends of the second inclined strut are respectively connected to the middle part of each first inclined strut and the upper part of each steel pipe upright; cross-linked steel pipes are arranged above the two long sides of the rectangle, and two ends of each cross-linked steel pipe are connected with the steel pipe upright posts; connecting rods are respectively arranged between the two transverse connection steel pipes, between the two steel box girders and between every two adjacent steel upright posts; the steel upright posts are provided with pier body hoops, and the distribution beams are uniformly distributed on the steel box beams along the length direction of the steel box beams.

On the basis of the technical scheme, the utility model discloses can also do following improvement.

Preferably, the steel pipe stand is the multistage structure, passes through flange joint between two sections adjacent steel pipe stands.

The beneficial effect of adopting the further scheme is that: the installation process is simple and convenient, the overturning risk in the installation and disassembly process is avoided, and the carrying is convenient.

Furthermore, the steel tube stand column is provided with a connecting ear plate which is respectively used for connecting the first inclined strut and the cross-linked steel tube.

The beneficial effect of adopting the further scheme is that: conveniently connect first bracing, cross-linking steel pipe.

Further, the upper ends of the steel tube stand columns are connected with the steel box girder through bolts.

The beneficial effect of adopting the further scheme is that: good stability, simple and convenient disassembly and assembly process and high working efficiency.

Preferably, the steel box girder is of at least three-section structure, and two adjacent steel box girders are connected through bolts. Preferably, the steel box girder has a three-section structure.

Furthermore, the connecting rod includes slant connecting rod, horizontal connecting rod, and the slant connecting rod inclines for the steel pipe stand, wherein all is equipped with horizontal connecting rod between two horizontal connection steel pipes, between two steel box girders and between per two adjacent steel stands, still is equipped with the slant connecting rod between per two adjacent steel stands.

The beneficial effect of adopting the further scheme is that: the integral rigidity of the bent cap bracket is enhanced, and the stability is good.

Furthermore, any two oblique connecting rods form a cross structure, and the middle parts of the two oblique connecting rods forming the cross structure are connected with each other.

The beneficial effect of adopting the further scheme is that: the stability is improved.

Furthermore, the connecting rod between the two transverse steel pipes is perpendicular to the transverse steel pipes, and the connecting rod between the two steel box girders is perpendicular to the steel box girders.

Further, the pier body staple bolt includes two channel-section steels and two steel rods, and two channel-section steels and two steel rods are spaced each other and are enclosed into the rectangle, and the channel-section steel is run through and is equipped with the nut in steel rod both ends, and the channel-section steel both ends are equipped with and are used for installing the mounting hole on the steel pipe stand with self.

The beneficial effect of adopting the further scheme is that: simple structure and convenient assembly.

Furthermore, the two ends of the first inclined strut are respectively hinged with the steel pipe upright post and the steel box girder, and the two ends of the second inclined strut are respectively hinged with the first inclined strut and the steel pipe upright post.

The beneficial effect of adopting the further scheme is that: the first inclined strut and the second inclined strut bear axial force, and the structural strength is high.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a side view of fig. 1.

Fig. 3 is a top view of the drawing.

Fig. 4 is a schematic structural view of the pier body hoop of the present invention.

In the drawings, the technical features represented by the respective reference numerals are as follows:

1-unloading the block; 2-steel tube column; 3-steel box girder; 4-a first diagonal brace; 5-a second inclined strut; 6-transverse steel pipe; 7-a connecting rod; 8-a pier body hoop; 9-a distribution beam; 10-bottom die carrier; 11-an operating platform; 12-oblique connecting rods; 13-a horizontal connecting rod; 14-connecting ear plates; 15-channel steel; 16-a steel rod; 20-pier stud; 21-concrete regulating block.

Detailed Description

The principles and features of the present invention will be described with reference to the drawings, which are provided for illustration only and are not intended to limit the scope of the invention.

The utility model is shown in figures 1-4.

Embodiment one, as shown in fig. 1-3:

the utility model provides an assembly type cantilever bent cap bracket, which comprises four unloading blocks 1 which are arranged in a rectangle, wherein the four unloading blocks 1 are respectively provided with a steel pipe upright post 2, the top of the steel pipe upright post 2 is provided with two steel box girders 3, and the two steel box girders 3 are respectively just opposite to two long edges of the rectangle; a first inclined strut 4 and a second inclined strut 5 are arranged below two ends of each of the two steel box girders 3, two ends of each first inclined strut 4 are respectively connected to the lower surface of each steel box girder 3 and the middle part of each steel tube upright 2, and two ends of each second inclined strut 5 are respectively connected to the middle part of each first inclined strut 4 and the upper part of each steel tube upright 2; a cross-linked steel pipe 6 is also arranged above the two long sides of the rectangle, and two ends of the cross-linked steel pipe 6 are connected with the steel pipe upright posts 2; connecting rods 7 are respectively arranged between the two cross-linked steel pipes 6, between the two steel box girders 3 and between every two adjacent steel upright columns; the steel upright post is provided with a pier body hoop 8, and the upper surface of the steel box girder 3 is evenly distributed with distribution girders 9 along the length direction of the steel box girder.

Note: the unloading block 1 is a general term in the field, is used for installing a steel pipe upright post 2 on a ground foundation (or a concrete adjusting block 21), and belongs to the common knowledge; in addition, when the pier stud 20 is poured, a concrete adjusting block is poured at the same time, and the unloading block 1 is arranged on the concrete adjusting block. The distribution beam 9, a term commonly used in the art, is used to distribute the upper load evenly to the plurality of beams on the steel box girder 3, which is common knowledge.

The principle is as follows: the use method is that the capping beam is usually constructed on the constructed pier column 20 in the construction process, the pier column 20 is usually two or one with a long section, and the pier body hoop 8 is used for connecting the steel pipe upright post 2 with the inherent pier column 20, so that the capping beam bracket and the existing pier column 20 form a wall connecting piece. The installation is accomplished the utility model discloses afterwards, die carrier 10, operation platform 11 at the bottom of the installation on it can begin to be under construction the cantilever bent cap. The bottom formwork 10 and the operating platform 11 are arranged according to the construction scheme of the cantilever cover beam, the specific structure and shape of the bottom formwork are determined according to the structure of the cover beam, the specific shape is not required to be limited, and the bottom formwork is common knowledge of people in the field.

Assembling: 1. installing a loading and unloading falling block 1, steel pipe upright columns 2, transverse steel pipes 6, connecting rods 7 between the two transverse steel pipes 6 and the connecting rods 7 between the adjacent steel pipe upright columns 2, and connecting the steel upright columns with inherent pier columns 20 by pier body hoops 8; 2. assembling the steel box girder 3 of the middle part; 3. assembling a first inclined strut 4, a second inclined strut 5 and two end parts of the steel box girder 3 on the ground; 4. hoisting two end parts of the assembled steel box girder 3, and assembling the two end parts with the middle part of the steel box girder 3; 5. the distribution beam 9 is mounted. And finally, installing the bottom die frame 10 and the operating platform 11 on the upper surface to finish the construction preparation of the cantilever bent cap.

Adopt the beneficial effects of the utility model are that: on the premise of realizing the construction of the large cantilever prestressed capping beam with the length of more than 30 meters, the two ends of the steel box beam 3 do not occupy the ground space, and the capping beam bracket and the construction access passage are shared without mutual interference, so that the temporary occupation in an environmental protection area is reduced; modular assembly can be adopted, and the overlapping is simple and convenient, the period is short, and the risk is small; the pier body hoop 8 is adopted to enable the bent cap bracket and the existing pier stud 20 to form a wall connecting piece, so that the overturning risk of the bent cap bracket in the mounting and dismounting process is reduced; the top column top crossbeam adopts 3 structures of steel case roof beam, has reduced the steel use amount under the prerequisite that satisfies the structure atress, and the installation is light.

The second embodiment:

in the first embodiment, preferably, the steel pipe column 2 is a multi-section structure, and two adjacent sections of steel pipe columns 2 are connected through flanges.

The function is as follows: when the steel pipe upright post 2 is installed, the lower 1-2 sections of the steel pipe upright post 2 are installed, the connecting rod 7, the cross steel pipe 6 and the pier body hoop 8 are installed on the lower section of the steel pipe upright post 2 to form a whole with the inherent pier post 20, then the upper section of the steel pipe upright post 2, the steel box girder 3, the first inclined strut 4, the second inclined strut 5 and the like are installed upwards, and the steel pipe upright post, the steel box girder, the first inclined strut 4, the second inclined strut 5 and the like are assembled in a modular mode, so that the installation process is simple and convenient, and the overturning risk in the installation and disassembly process is avoided; in addition, single section steel pipe stand 2 light in weight, length is little, the transport of being convenient for.

The beneficial effect of adopting the further scheme is that: the installation process is simple and convenient, the overturning risk in the installation and dismantling process is avoided, and the carrying is convenient.

Furthermore, the steel tube upright post 2 is provided with a connecting ear plate 14 which is respectively used for connecting the first inclined strut 4 and the cross-linked steel tube 6.

The beneficial effect of adopting the further scheme is that: conveniently connect first bracing 4, cross-linked steel pipe 6.

Further, the upper end of the steel tube upright post 2 is connected with the steel box girder 3 through a bolt.

Example three:

in the above embodiment, preferably, the steel box girder 3 has at least three sections, and two adjacent sections of steel box girders 3 are connected by bolts. Preferably, the steel box girder 3 has a three-stage structure.

The function is as follows: in the assembling process, after the steel pipe upright post 2 is installed, the steel box girder 3 in the middle section is installed firstly, then the two sections at the two ends, the first inclined strut 4 and the second inclined strut 5 are assembled on the ground, and then the steel box girder, the first inclined strut and the second inclined strut are integrally hoisted and connected with the assembled steel box girder 3 in the middle section and the steel pipe upright post 2.

Example four:

in the above embodiment, preferably, the connecting rod 7 includes an oblique connecting rod 12 and a horizontal connecting rod 13, the oblique connecting rod 12 is inclined relative to the steel tube columns 2, the horizontal connecting rod 13 is disposed between two transverse steel tubes 6, between two steel box girders 3, and between every two adjacent steel columns, and the oblique connecting rod 12 is further disposed between every two adjacent steel columns.

The function is as follows: the oblique connecting rod 12 enables the different heights of two adjacent steel pipe columns 2 to have mutual supporting force, and the rigidity of the whole bent cap bracket is enhanced and the stability is good through the cooperation of the oblique connecting rod 12 and the horizontal connecting rod 13 and the horizontal connecting rods 13 between two transverse connection steel pipes 6 and between two steel box girders 3.

Further, any two of the oblique connecting rods 12 form a cross structure, and the middle parts of the two oblique connecting rods 12 forming the cross structure are connected with each other.

Further, the connecting rod 7 between the two cross-linked steel pipes 6 is perpendicular to the cross-linked steel pipes 6, and the connecting rod 7 between the two steel box girders 3 is perpendicular to the steel box girders 3.

Example five:

in the above embodiment, preferably, as shown in fig. 4:

pier shaft staple bolt 8 includes two channel-section steels 15 and two steel rods 16, and two channel-section steels 15 and two steel rods 16 separate each other and enclose into the rectangle, and steel rod 16 both ends run through channel-section steel 15 and are equipped with the nut, and 15 both ends of channel-section steel are equipped with and are used for installing the mounting hole on steel pipe stand 2 with self.

Example six:

in the above embodiment, preferably, two ends of the first inclined strut 4 are respectively hinged to the steel tube upright 2 and the steel box girder 3, and two ends of the second inclined strut 5 are respectively hinged to the first inclined strut 4 and the steel tube upright 2.

The beneficial effect of adopting the further scheme is that: the first inclined strut 4 and the second inclined strut 5 bear axial force, and the structural strength is high.

In the description of the present invention, it is to be understood that if descriptive terms indicating orientation, direction, or positional relationship appear, for example: "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, the positional or positional relationships indicated in this specification are based on the positional or positional relationships shown in the drawings, and are only for convenience of understanding the invention and to simplify the description, and do not indicate or imply that the parts, elements, or the whole referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the invention.

Additionally, if ordinal descriptive terms appear, for example: the use of "first", "second", etc. in this specification is for ease of understanding or to simplify the description, e.g., to distinguish between technical features of the same type or function and which have to be mentioned separately, where the specification may distinguish between terms in a prefix or suffix order. Therefore, it is not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the utility model, if the description term of the relative action relationship of the structure is adopted, for example: "mounted," "connected," "secured," and the like are to be construed broadly unless otherwise expressly specified or limited. For example, "mounted," "connected," and the like, may be fixedly connected, may be detachably connected, or may be integrated; can be mechanically or electrically connected; the two components can be directly connected or indirectly connected through an intermediate medium, and can be communicated with each other inside the two components or in an interaction relationship of the two components; the fixation can be integrated fixation or can be detachably fixed by a fastener; the fixing can be direct or via intermediate medium. The meaning of the above description terms in the present invention can be understood by those skilled in the art according to the specific situation, the present context, the text continuity before and after, and the like.

In the present application, if a descriptive phrase containing an attached or connected meaning is used, for example, first feature may be "on" or "under" second feature unless explicitly stated or limited otherwise, it should not be read restrictively, for example, "on" or "under" may indicate that the first and second features are in direct contact, or that the first and second features are in indirect contact via an intermediate. The meaning of the above description terms in the present invention can be understood by those skilled in the art according to the specific situation, the present context, the text continuity before and after, and the like.

Further, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature "under," "beneath," and "under" a second feature may be directly under or obliquely under the second feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the various embodiments, examples, and features of the various embodiments, examples described in this specification can be combined and combined by one skilled in the art without contradiction, and such combinations or combinations are intended to be included within the scope of the present disclosure.

While embodiments of the present invention have been shown and described, it is understood that they have been presented by way of example only, and not limitation, and that various changes, modifications, substitutions and alterations can be made herein by those skilled in the art in light of the teaching contained herein without departing from the scope of the invention as defined by the appended claims.

Claims

1. The utility model provides an assembled cantilever bent cap bracket which characterized in that: the steel box girder unloading device comprises four unloading blocks (1) which are arranged in a rectangular shape, wherein steel pipe upright posts (2) are respectively arranged on the four unloading blocks (1), two steel box girders (3) are arranged at the tops of the steel pipe upright posts (2), and the two steel box girders (3) are respectively opposite to two long edges of the rectangular shape; a first inclined strut (4) and a second inclined strut (5) are arranged below two ends of each steel box girder (3), two ends of each first inclined strut (4) are respectively connected to the lower surface of each steel box girder (3) and the middle part of each steel tube upright (2), and two ends of each second inclined strut (5) are respectively connected to the middle part of each first inclined strut (4) and the upper part of each steel tube upright (2); cross-linked steel pipes (6) are further arranged above the two long sides of the rectangle, and the two ends of each cross-linked steel pipe (6) are connected with the steel pipe upright posts (2) corresponding to the long sides of the rectangle; connecting rods (7) are respectively arranged between the two cross-linked steel pipes (6), between the two steel box girders (3) and between every two adjacent steel pipe upright columns; the steel tube upright posts are provided with pier body hoops (8), and the upper surfaces of the steel box girders (3) are uniformly distributed with distribution girders (9) along the length direction of the steel box girders.

2. The fabricated cantilever capping beam bracket of claim 1, wherein: the steel pipe upright posts (2) are of a multi-section structure, and the adjacent two sections of steel pipe upright posts (2) are connected through flanges.

3. The fabricated cantilever capping beam bracket of claim 1, wherein: and the steel pipe upright post (2) is provided with a connecting ear plate (14) which is respectively used for connecting the first inclined strut (4) and the cross-linked steel pipe (6).

4. The fabricated cantilever capping beam bracket of claim 1, wherein: the upper end of the steel tube upright post (2) is connected with the steel box girder (3) through a bolt.

5. The fabricated cantilever capping beam bracket of claim 1, wherein: the steel box girder (3) is of at least three-section structure, and two adjacent steel box girders (3) are connected through bolts.

6. The fabricated cantilever capping beam bracket of claim 1, wherein: connecting rod (7) include slant connecting rod (12), horizontal connecting rod (13), and slant connecting rod (12) all are equipped with horizontal connecting rod (13) for steel pipe stand (2) slope between two horizontal steel pipes (6) wherein, between two steel box girders (3) and between per two adjacent steel pipe stands, still are equipped with slant connecting rod (12) between per two adjacent steel pipe stands.

7. The fabricated cantilever capping beam bracket of claim 6, wherein: any two oblique connecting rods (12) form a cross structure, and the middle parts of the two oblique connecting rods (12) forming the cross structure are connected with each other.

8. The fabricated cantilever capping beam bracket of any one of claims 1 to 7, wherein: the connecting rod (7) between the two cross-linked steel pipes (6) is vertical to the cross-linked steel pipes (6), and the connecting rod (7) between the two steel box girders (3) is vertical to the steel box girders (3).

9. The fabricated cantilever capping beam bracket of claim 1, wherein: pier shaft staple bolt (8) include two channel-section steels (15) and two steel rods (16), and two channel-section steels (15) and two steel rods (16) separate each other and enclose into the rectangle, and channel-section steel (15) and be equipped with the nut are run through at steel rod (16) both ends, and channel-section steel (15) both ends are equipped with and are used for installing the mounting hole on steel pipe stand (2) with self.

10. The fabricated cantilever capping beam bracket of claim 1, wherein: the two ends of the first inclined strut (4) are respectively hinged with the steel tube upright post (2) and the steel box girder (3), and the two ends of the second inclined strut (5) are respectively hinged with the first inclined strut (4) and the steel tube upright post (2).