Assembly type triangular bracket capable of adjusting angle of cross beam

Abstract

The utility model belongs to the technical field of bridge construction, and particularly provides an assembly type triangular bracket capable of adjusting the angle of a cross beam, the assembly type triangular bracket is connected with the side face of a pier body, the assembly type triangular bracket comprises a main cross beam, an upper bracket, a lower bracket and an inclined strut, and the left end of the main cross beam is connected with the pier body through the upper bracket; the right portion of the main cross beam is connected with the upper end of the inclined strut, and the lower end of the inclined strut is connected with the pier body through the lower bracket, so that the problems that in an existing conventional bracket structure, time is wasted in turnover transformation, the welding installation technology is tedious, the number of embedded parts is large, and later-period repairing is tedious are solved. The inclination angle of the main cross beam can be adjusted by adjusting the length of the inclined struts so as to meet the construction of bottom plates with different inclination angles, the erection time of the triangular bracket is shortened, the construction efficiency is improved, and the cost is saved.

Description

Technical Field

[0001] The utility model belongs to the technical field of bridge construction, and in particular relates to an assembled triangular bracket capable of adjusting the angle of a crossbeam. Background Art

[0002] With the continuous development of public transportation, the continuous improvement of national highways and high-speed railways, road network construction has continued to advance to the west, mountainous areas, and plateaus. The bridge-tunnel ratio has continued to increase, and high piers and large spans have continued to emerge. In particular, large-span continuous rigid frame bridges have demonstrated their advantages in crossing deep mountain canyons, rivers, and existing road projects. Therefore, construction plans with mature construction technology, low cost, and less special equipment required have become the first choice for construction.

[0003] Conventional continuous beam bridges and continuous rigid frame bridges use two forms of floor-standing brackets or brackets in the construction of 0# or even 1# blocks. The floor-standing bracket is easy to operate and has clear force, mainly when the pier side foundation is good and the pier column height is not high, while the bracket method is mainly used when the pier side foundation treatment is difficult, the pier column height is large, or the construction is carried out in water.

[0004] The traditional bracket construction method is mainly to embed steel or steel plate embedded parts in advance when constructing the pier body, and then weld the bracket steel rods to the embedded parts when constructing the 0# block. After the construction is completed, it is removed by cutting. Its advantages are simple structure and clear force, but its turnover is time-consuming, the cost of transformation is high when it is used for secondary use, and the disadvantages of high-altitude welding and large material consumption are also inevitable. Moreover, after the bracket construction is completed, due to the large number of embedded parts on the pier column, there are many "scars" on the pier column, and the repair amount is large. The anti-corrosion treatment of the embedded steel plate (box) left is difficult, and it is very likely to become a rust channel for the main structure. In addition, the general 0# width is more than 9m. In order to ensure the force safety of the structure, multiple groups of brackets are usually arranged side by side, and then flat joints and triangular diagonal braces are used for stable reinforcement to ensure that its lateral stiffness meets the requirements.

[0005] A Chinese patent document with publication number CN116949939A discloses a prestressed triangular bracket and a construction method thereof. The bracket body of the document is a welded triangular frame structure, and the flange, the connecting seat and the bracket body are also welded into an integral structure. The structure cannot be disassembled and the length cannot be adjusted. Although the structure enables the bracket body to withstand a larger load and the force is clear, it still has the disadvantages of time-consuming turnover, high cost of modification during secondary use, high-altitude welding and large material consumption. Utility Model Content

[0006] The utility model provides an assembled triangular bracket with adjustable crossbeam angle, which aims to overcome the problems of time-consuming turnover and transformation, complicated welding and installation process, large number of embedded parts and complicated later repair in conventional bracket structures in the prior art.

[0007] To this end, the utility model provides an assembled triangular bracket with an adjustable crossbeam angle. The assembled triangular bracket is connected to the side of the pier body. The assembled triangular bracket includes a main crossbeam, an upper corbel, a lower corbel and a diagonal brace. The left end of the main crossbeam is connected to the pier body through the upper corbel, the right part of the main crossbeam is connected to the upper end of the diagonal brace, and the lower end of the diagonal brace is connected to the pier body through the lower corbel.

[0008] Preferably, the assembled triangular bracket also includes a connecting ear plate, and the left end of the main crossbeam and the upper corbel, the right part of the main crossbeam and the upper end of the diagonal brace, and the lower end of the diagonal brace and the lower corbel are all connected by the connecting ear plate.

[0009] Preferably, the main cross beam and the connecting ear plate, the upper end of the diagonal brace and the connecting ear plate, and the lower end of the diagonal brace and the connecting ear plate are all connected by pins.

[0010] Preferably, the assembled triangular bracket also includes a climbing cone, and the upper corbel and the lower corbel are connected to the pier body via the climbing cone.

[0011] Preferably, the diagonal brace is a diagonal brace with adjustable length.

[0012] Preferably, the diagonal brace with adjustable length comprises two diagonal brace main rods and a sleeve, the two diagonal brace main rods are connected by the sleeve, both ends of the diagonal brace main rods are threaded, and the inside of the sleeve is threaded.

[0013] Preferably, the diagonal brace main rod is a round steel pipe.

[0014] Preferably, a rotating handle is connected to the outer side of the sleeve.

[0015] Preferably, a stiffening steel plate is provided on the flange of the main beam to which the upper end of the diagonal brace is connected.

[0016] Preferably, the connecting ear plate includes a base plate 1 and two ear plates. When the base plate 1 is horizontally arranged, the two ear plates are relatively spaced and vertically connected to the top or bottom of the base plate 1. The two ear plates connected to the upper ends of the diagonal braces are connected to the base plate 1 by bolts to the stiffening steel plate.

[0017] Beneficial effects of the utility model:

[0018] 1. The utility model provides an assembled triangular bracket with adjustable crossbeam angle, which comprises a main crossbeam, an upper corbel, a lower corbel and a diagonal brace. The left end of the main crossbeam is connected to the pier body through the upper corbel, the right part of the main crossbeam is connected to the upper end of the diagonal brace, and the lower end of the diagonal brace is connected to the pier body through the lower corbel. The structure is simple and has good stability.

[0019] 2. The utility model provides an assembled triangular bracket with adjustable crossbeam angle, in which the left end of the main crossbeam and the upper corbel, the right part of the main crossbeam and the upper end of the diagonal brace, and the lower end of the diagonal brace and the lower corbel are all connected by connecting ear plates. By installing the connecting ear plates on the embedded parts of the pier body, the main crossbeam and the connecting ear plates, the upper end of the diagonal brace and the connecting ear plates, and the lower end of the diagonal brace and the connecting ear plates are all connected by pins, and the pins are used to connect the components, which not only ensures the stability and load-bearing capacity of the assembled triangular bracket, but also makes the assembly triangular bracket structure more convenient to install and disassemble, reduces the input of installers, and increases the turnover capacity of the assembled triangular bracket.

[0020] 3. The utility model provides an assembled triangular bracket with adjustable crossbeam angle, and the main rod of the diagonal support is a circular steel pipe, which has better axial compressive strength than the traditional double-piece I-shaped section and improved bearing capacity.

[0021] 4. The utility model provides an assembled triangular bracket with adjustable crossbeam angle, and the diagonal brace is an adjustable length diagonal brace, which can meet the use requirements by adjusting the length.

[0022] 5. The utility model provides an assembled triangular bracket with adjustable crossbeam angle, in which the upper and lower corbels are connected to the pier body through climbing cones. By pre-embedding the climbing cones on the pier body, the safety of the embedded parts (climbing cones) is guaranteed and the disassembly of the embedded parts is convenient, which provides convenience for subsequent disassembly and repair of the pier body.

[0023] 6. The assembled triangular bracket with adjustable crossbeam angle provided by the utility model solves the problems of time-consuming turnover and transformation, complicated welding and installation process, large number of embedded parts and complicated later repair in conventional bracket structures through a movable and detachable connecting device (pin connection), adjustable-length diagonal braces and detachable corbels (upper corbels and lower corbels). It saves construction costs and increases structural safety, especially for the same project with the same bridge type. There is a significant saving in the investment in large temporary structures. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0025] Figure 1 It is the structural front view of the assembled triangular bracket with adjustable crossbeam angle;

[0026] Figure 2 It is a structural diagram of the upper corbel connecting the pier body;

[0027] Figure 3 yes Figure 2 Right view of;

[0028] Figure 4It is a schematic diagram of the connection between the upper corbel, the main beam and the climbing cone;

[0029] Figure 5 It is a structural diagram of the lower corbel connecting the pier body;

[0030] Figure 6 yes Figure 5 Right view of;

[0031] Figure 7 It is a structural diagram of the lower corbel connecting the diagonal brace;

[0032] Figure 8 It is a structural diagram of the main beam connecting the diagonal braces.

[0033] Description of reference numerals: 1. pier body; 2. main crossbeam; 3. upper corbel; 4. lower corbel; 5. diagonal brace; 6. connecting ear plate; 7. pin shaft; 8. climbing cone; 9. stiffening steel plate; 10. bolt; 11. positioning plate;

[0034] 3.1. Anchor plate 1; 3.2. Side plate 1; 3.3. Stiffening plate 1; 3.4. Top plate;

[0035] 4.1. Anchor plate 2; 4.2. Stiffening plate;

[0036] 5.1. Diagonal support main pole; 5.2. Casing; 5.3. Turning handle;

[0037] 6.1. Bottom plate 1; 6.2. Ear plate. DETAILED DESCRIPTION

[0038] The principles and features of the present invention are described below in conjunction with the accompanying drawings. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention.

[0039] Embodiment 1:

[0040] like Figure 1 , Figure 6 and Figure 7 As shown, an assembled triangular bracket with adjustable crossbeam angle is connected to the side of the pier body 1. The assembled triangular bracket includes a main crossbeam 2, an upper corbel 3, a lower corbel 4 and a diagonal brace 5. The left end of the main crossbeam 2 is connected to the pier body 1 through the upper corbel 3, the right part of the main crossbeam 2 is connected to the upper end of the diagonal brace 5, and the lower end of the diagonal brace 5 is connected to the pier body 1 through the lower corbel 4.

[0041] The structure forms a triangular structure with simple structure and good stability.

[0042] Embodiment 2:

[0043] On the basis of Example 1, the assembled triangular bracket further includes a connecting ear plate 6, and the left end of the main crossbeam 2 and the upper corbel 3, the right part of the main crossbeam 2 and the upper end of the diagonal brace 5, and the lower end of the diagonal brace 5 and the lower corbel 4 are all connected through the connecting ear plate 6. The connecting ear plate 6 facilitates the connection of two adjacent components.

[0044] Preferably, the main cross beam 2 and the connecting ear plate 6 , the upper end of the diagonal brace 5 and the connecting ear plate 6 , and the lower end of the diagonal brace 5 and the connecting ear plate 6 are all connected via a pin 7 .

[0045] Specifically, by installing the connecting ear plate 6 on the pier body embedded part and connecting with each component by the pin shaft 7, the stability and bearing capacity of the assembled triangular bracket are ensured, and the assembled triangular bracket structure is more convenient to install and disassemble, which reduces the input of the installation and disassembly personnel and increases the turnover capacity of the assembled triangular bracket. Compared with the common welding method, it can facilitate the installation and disassembly of the construction site while ensuring that the connection stiffness and bearing capacity remain unchanged, and can achieve flexible turnover and save materials.

[0046] Preferably, the assembled triangular bracket further includes a climbing cone 8 , and the upper corbel 3 and the lower corbel 4 are both connected to the pier body 1 via the climbing cone 8 .

[0047] Specifically, by pre-embedding a climbing cone 8 on the pier body 1, the embedded corbels (upper corbel 3 and lower corbel 4) adopt a climbing cone form to resist the vertical shear force of the diagonal brace 5 and the axial tension and vertical shear force of the main beam 2, which not only ensures the safety of the embedded parts (climbing cone 8) but also ensures the convenient disassembly and flexible turnover of the embedded parts, providing convenience for subsequent disassembly and repair of the pier body 1.

[0048] Preferably, the diagonal brace 5 is a diagonal brace with adjustable length.

[0049] Specifically, the length of the diagonal brace 5 is adjusted as required to meet usage requirements.

[0050] Preferably, the diagonal brace with adjustable length comprises two diagonal brace main rods 5.1 and a sleeve 5.2, the two diagonal brace main rods 5.1 are connected by the sleeve 5.2, both ends of the diagonal brace main rods 5.1 are threaded, and the inside of the sleeve 5.2 is threaded.

[0051] The length of the diagonal brace can be adjusted by adjusting the threaded opening of the sleeve 5.2 according to the specific length used and the inclination angle of the main crossbeam 2. The structure is simple and the operation is convenient.

[0052] Preferably, the diagonal brace main rod 5.1 is a round steel tube.

[0053] Circular steel pipes have better axial compressive strength and improved load-bearing capacity than traditional double-piece I-sections.

[0054] Preferably, a rotating handle 5.3 is arranged and connected to the outer side of the sleeve 5.2. The operation is performed by rotating the handle 5.3, which saves time and effort and is easy to operate.

[0055] Preferably, a stiffening steel plate 9 is provided on the flange of the main beam 2 to which the upper end of the diagonal brace 5 is connected.

[0056] Specifically, the local stiffness of the main beam 2 can be improved by the stiffening steel plate 9 .

[0057] Preferably, Figure 3 , Figure 5 and Figure 8 As shown, the connecting ear plate 6 includes a base plate 6.1 and two ear plates 6.2. When the base plate 6.1 is horizontally arranged, the two ear plates 6.2 are relatively spaced and vertically connected to the top or bottom of the base plate 6.1. The two ear plates 6.2 connected to the upper end of the diagonal brace 5 and the base plate 6.1 are connected to the stiffening steel plate 9 through bolts 10.

[0058] Specifically, the bottom plate 6.1 is connected to the lower flange of the main beam 2 by bolts 10, so as to ensure the local rigidity of the main beam 2 and facilitate installation and disassembly.

[0059] Preferably, the assembled triangular bracket further comprises a positioning plate 11, the positioning plate 11 is located in the pier body 1, and a plurality of climbing cones 8 are connected to the positioning plate 11. Specifically, the positioning plate 11 is used to position and connect the climbing cones 8.

[0060] Preferably, Figure 2 As shown, the upper corbel 3 includes an anchor plate 3.1, a side plate 3.2, a stiffening plate 3.3 and a top plate 3.4. The anchor plate 3.1 is vertically arranged, and the right side of the anchor plate 3.1 is vertically connected to two side plates 3.2. The two side plates 3.2 are spaced from front to back. A plurality of stiffening plates 3.3 are vertically connected between the sides of the anchor plate 3.1 and the side plates 3.2. The top of the two side plates 3.2 is connected to the top plate 3.4, and the top of the top plate 3.4 is connected to the connecting ear plate 6. A plurality of anchor holes are opened on the anchor plate 3.1; the anchor holes are convenient for passing through the climbing cone 8, the top plate 3.4 is convenient for connecting to the connecting ear plate 6, and the stiffening plate 3.3 is convenient for improving the stability of the connecting structure.

[0061] Preferably, Figure 4 As shown, the lower corbel 4 includes an anchor plate 4.1 and a stiffening plate 4.2. The anchor plate 4.1 is vertically arranged. A plurality of stiffening plates 4.2 are vertically connected to the right side of the anchor plate 4.1. The plurality of stiffening plates 4.2 are divided into two groups. The two groups of stiffening plates 4.2 are spaced apart from each other. A plurality of anchor holes are opened on the anchor plate 4.1. The connecting ear plates are connected to the inner sides of the two groups of stiffening plates 4.2. The anchor holes are convenient for passing through the climbing cone 8.

[0062] Embodiment 3:

[0063] Based on Example 2, a construction method of an assembled triangular bracket with adjustable crossbeam angle includes the following steps:

[0064] S1: During the construction of the pier, the bracket pier body embedded parts (climbing cone) are embedded according to the design elevation;

[0065] S2: Process and assemble the assembled triangular bracket in the back field, and adjust the thread length of the diagonal brace 5 according to the actual slope of the structure;

[0066] S3: Use a tower crane or a truck crane or other lifting equipment to lift the assembled triangular bracket to the installation position and connect it to the embedded parts of the pier body;

[0067] S4: After installation, the two assembled triangular brackets should be fine-tuned to ensure structural coordination;

[0068] S5: After adjustment, set up the distribution beam and square wood formwork on the upper part of the assembled triangular bracket, and then pre-press the entire bracket system to eliminate the elastic deformation and assembly gap between the structures.

[0069] The utility model adopts the method of pre-embedded parts for the pier body for construction, solves the operation of installing shear steel in the reserved holes in the pier body, and ensures the integrity of the pier body structure.

[0070] In the description of the present invention, it should be understood that if there are terms such as "upper", "lower", "right", etc. indicating directions or positional relationships, they are based on the directions or positional relationships shown in the drawings, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes and cannot be understood as a limitation on the present invention.

[0071] The above examples are merely illustrative of the present invention and do not constitute a limitation on the protection scope of the present invention. All designs that are identical or similar to the present invention fall within the protection scope of the present invention.

Claims

1. An assembled triangular bracket with adjustable crossbeam angle, the assembled triangular bracket connected to the side of the pier body (1), characterized in that: The assembled triangular bracket comprises a main crossbeam (2), an upper corbel (3), a lower corbel (4), a diagonal brace (5) and a plurality of climbing cones (8); the left end of the main crossbeam (2) is connected to the pier body (1) via the upper corbel (3); the right part of the main crossbeam (2) is connected to the upper end of the diagonal brace (5); the lower end of the diagonal brace (5) is connected to the pier body (1) via the lower corbel (4); the upper corbel (3) and the lower corbel (4) are both connected to the pier body (1) via the plurality of climbing cones (8); and the diagonal brace (5) is a diagonal brace with adjustable length.

2. The assembled triangular bracket with adjustable crossbeam angle as claimed in claim 1, characterized in that: The assembled triangular bracket further comprises a connecting ear plate (6), and the left end of the main crossbeam (2) and the upper corbel (3), the right part of the main crossbeam (2) and the upper end of the diagonal brace (5), and the lower end of the diagonal brace (5) and the lower corbel (4) are all connected via the connecting ear plate (6).

3. The assembled triangular bracket with adjustable crossbeam angle as claimed in claim 2, characterized in that: The main crossbeam (2) and the connecting ear plate (6), the upper end of the diagonal brace (5) and the connecting ear plate (6), and the lower end of the diagonal brace (5) and the connecting ear plate (6) are all connected via a pin shaft (7).

4. The assembled triangular bracket with adjustable crossbeam angle as claimed in claim 1, characterized in that: The diagonal brace with adjustable length comprises two diagonal brace main rods (5.1) and a sleeve (5.2); the two diagonal brace main rods (5.1) are connected via the sleeve (5.2); both ends of the diagonal brace main rods (5.1) are threaded, and the inside of the sleeve (5.2) is threaded.

5. The assembled triangular bracket with adjustable crossbeam angle as claimed in claim 4, characterized in that: The diagonal bracing main rod (5.1) is a circular steel pipe.

6. The assembled triangular bracket with adjustable crossbeam angle as claimed in claim 4, characterized in that: The outer side of the sleeve (5.2) is connected to a rotating handle (5.3).

7. The assembled triangular bracket with adjustable crossbeam angle as claimed in claim 2, characterized in that: A stiffening steel plate (9) is provided and connected to the flange of the main cross beam (2) to which the upper end of the diagonal brace (5) is connected.

8. The assembled triangular bracket with adjustable crossbeam angle as claimed in claim 7, characterized in that: The connecting ear plate (6) comprises a base plate 1 (6.1) and two ear plates (6.2). When the base plate 1 (6.1) is arranged horizontally, the two ear plates (6.2) are relatively spaced and vertically connected to the upper or lower side of the base plate 1 (6.1). The upper ends of the diagonal braces (5) are connected to the two ear plates (6.2). The base plate 1 (6.1) is connected to the reinforcing steel plate (9) via bolts (10).

9. The assembled triangular bracket with adjustable crossbeam angle as claimed in claim 1, characterized in that: The assembled triangular bracket further comprises a positioning plate (11), the positioning plate (11) being located inside the pier body (1), and a plurality of climbing cones (8) being connected to the positioning plate (11).

10. The assembled triangular bracket with adjustable crossbeam angle as claimed in claim 2, characterized in that: The upper bracket (3) comprises an anchor plate (3.1), a side plate (3.2), a stiffening plate (3.3) and a top plate (3.4); the anchor plate (3.1) is arranged vertically; the right side of the anchor plate (3.1) is vertically connected to two side plates (3.2); the two side plates (3.2) are arranged at intervals from front to back; a plurality of stiffening plates (3.3) are vertically connected between the sides of the anchor plate (3.1) and the side plates (3.2); the tops of the two side plates (3.2) are connected to the top plate (3.4); the top of the top plate (3.4) is connected to the connecting ear plate (6); and a plurality of anchor holes are provided on the anchor plate (3.1).

Images