An insertable corbel bracket for the No. 0 block of a continuous beam bridge

Abstract

This application discloses an insertable corbel bracket for the No. 0 block of a continuous beam bridge, relating to the field of continuous beam bridge construction technology. The insertable corbel bracket includes pre-embedded box assemblies located on both sides of the pier. Each pre-embedded box assembly includes an upper pre-embedded box and a lower pre-embedded box embedded within the pier. An upper corbel is inserted into the upper pre-embedded box, and a lower corbel is inserted into the lower pre-embedded box. A cantilevered crossbar supports the upper corbel, which is connected to the lower corbel via diagonal braces. The crossbars on both sides of the pier are connected by a tie rod that penetrates the pier. The top wall of the upper pre-embedded box is angled upwards from the inside out, forming an upper self-locking wedge cavity with the top of the upper corbel, into which an upper self-locking wedge block is inserted. Similarly, the top wall of the lower pre-embedded box is angled upwards from the inside out, forming a lower self-locking wedge cavity with the top of the lower corbel, into which a lower self-locking wedge block is inserted. This application allows for easy insertion of the corbel into the pre-embedded box, reducing the difficulty of corbel installation.

Description

Technical Field

[0001] This application relates to the field of continuous beam bridge construction technology, specifically to an insertable bracket for the No. 0 block of a continuous beam bridge. Background Technology

[0002] In continuous beam bridge structures, block 0, as the starting segment at the pier top, is the root segment of the entire cantilever construction system. It has large geometric dimensions, high segmental weight, and is located in the pier-beam fixed-bond area, resulting in complex stress. Currently, block 0 is commonly constructed using the pier-top bracket cast-in-place method. The specific construction method involves first erecting a temporary bracket on the top or side of the pier to form a load-bearing platform, then erecting formwork, tying reinforcing bars, and pouring concrete on the platform to complete the formation of block 0. The bracket can only be removed after block 0 is tensioned and anchored. Therefore, the structural form, installation accuracy, and ease of dismantling of the bracket directly determine the construction quality, schedule, and safety of block 0.

[0003] Traditional brackets are mostly all-welded steel structures, meaning that components such as brackets, beams, and diagonal braces are welded into an integral frame in the factory or on-site, and then hoisted into place in one go. While this type of steel structure has the advantage of high overall rigidity, it still has the following disadvantages: 1. Numerous welds and large welding deformations lead to a large amount of on-site correction work; 2. The overall frame is large in size and heavy in weight, requiring the use of large lifting equipment on-site; 3. Dismantling requires gas cutting to separate components, resulting in severe damage, low reuse rate, and high construction costs.

[0004] To overcome the aforementioned shortcomings, prefabricated bracket systems have emerged in recent years. These systems disassemble the brackets into several standardized modules, which are then quickly assembled on-site using high-strength bolts or pins. This reduces high-altitude welding and facilitates transportation, disassembly, and multiple reuses, making it a key trend in the industry. Existing prefabricated bracket systems can be divided into two categories based on the connection method between the bracket and the pier: The first category is the embedded bracket, where steel brackets are pre-embedded in the pier concrete. After demolding, the brackets are fixed to the pier body; specific structures can be found in CN116397548A. The second category is the insert bracket, where rectangular embedded boxes are installed inside the pier. During construction, prefabricated brackets are inserted into these boxes; specific structures can be found in CN215857255U, CN222685297U, and CN207143755U.

[0005] Pre-embedded brackets are less economical because the brackets are permanently embedded in the pier and cannot be recovered later. Insertable brackets, on the other hand, offer significant economic advantages due to their ability to completely recover the brackets without damaging the pier concrete, making them the preferred solution for projects. However, to ensure the stability of the brackets within the embedded box, current designs typically control the gap between the bracket and the embedded box to within 3mm. Due to this small gap, factors such as dimensional deviations between the bracket and the embedded box, concrete pouring errors, and slight misalignment of the embedded box can all make it difficult to insert the bracket into the embedded box. This forces repeated prying, hammering, and even secondary machining on site, which not only prolongs the bracket installation time but also significantly increases the risks of working at height. Utility Model Content

[0006] The purpose of this application is to provide an insertable bracket for the No. 0 block of a continuous beam bridge, which solves the problem of difficult bracket installation caused by the small gap between the bracket and the embedded box.

[0007] The technical solution adopted by this application to solve its technical problem is: An insertable corbel bracket for the No. 0 block of a continuous beam bridge includes two sets of pre-embedded box groups symmetrically arranged on both sides of the pier. Each pre-embedded box group includes an upper pre-embedded box and a lower pre-embedded box pre-embedded in the pier from top to bottom. An upper corbel is inserted into the upper pre-embedded box, and a lower corbel is inserted into the lower pre-embedded box. A horizontal bar is cantilevered on the upper corbel, and the horizontal bar is connected to the lower corbel through a diagonal brace. The horizontal bars on both sides of the pier are connected by a tie rod that passes through the pier. The top wall of the upper pre-embedded box is obliquely upward from the inside out and forms an upper self-locking wedge cavity with the top of the upper bracket. An upper self-locking wedge block is inserted into the upper self-locking wedge cavity. The top wall of the lower pre-embedded box is obliquely upward from the inside out and forms a lower self-locking wedge cavity with the top of the lower bracket. A lower self-locking wedge block is inserted into the lower self-locking wedge cavity.

[0008] Furthermore, the outer end of the upper self-locking wedge is connected to an upper push-pull nut, and the outer end of the lower self-locking wedge is connected to a lower push-pull nut. Both the upper push-pull nut and the lower push-pull nut are used for threaded connection with the end of the push-pull rod.

[0009] Furthermore, the top of the upper bracket has two opposing and upwardly extending upper positioning plates, which are arranged on both sides of the crossbar.

[0010] Furthermore, the tie rod assembly includes a tie rod that passes through the pier and a tie rod positioning plate fixed on the crossbar. The two ends of the tie rod are respectively provided with external thread sections. The external thread sections of the tie rod pass through the tie rod positioning plate and are threadedly connected to the tie nut.

[0011] Furthermore, a limiting nut is threadedly connected to the external thread section of the tie rod, and the tie nut and the limiting nut are respectively located on both sides of the tie rod positioning plate.

[0012] Furthermore, a steel pipe for the pier body is pre-embedded inside the pier, and the tie rod passes through the steel pipe for the pier body.

[0013] Furthermore, the pull assembly includes a plurality of the pull rods.

[0014] Furthermore, a vertical pole connects the horizontal bar and the diagonal brace.

[0015] Furthermore, the bottom of the crossbar is connected to a plurality of ear plates, which are spaced apart along the axial direction of the crossbar. The lower end of the diagonal brace is hinged to the lower bracket, and the upper end of the diagonal brace is hinged to one of the ear plates.

[0016] Furthermore, the diagonal braces on the same side of the pier are connected by scissor braces.

[0017] The beneficial effects of this application are: The continuous beam bridge 0-block insert bracket provided in this application embodiment features a pre-embedded box with its top wall sloping upwards from the inside out. This creates a loose insertion opening, facilitating easy insertion of the bracket into the box, reducing installation difficulty and shortening high-altitude work time. Once the bracket is inserted, a self-locking wedge cavity is formed between the top of the bracket and the top wall of the box. By inserting a self-locking wedge into this cavity, the bracket is secured within the box, preventing it from wobbling and improving the stability and reliability of the entire bracket during construction. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the structure of the insertable corbel bracket for the No. 0 block of the continuous beam bridge provided in the embodiments of this application; Figure 2 yes Figure 1 The left view; Figure 3 yes Figure 1 Enlarged view of section A in the middle; Figure 4 yes Figure 1 Enlarged view of section B in the middle; Figure 5 This is a structural diagram of the upper and lower cow legs; Figure 6 yes Figure 5 The left view; Figure 7 This is a schematic diagram of the upper and lower self-locking wedges.

[0020] Figure label: 10-Bridge pier; 11-Upper pre-embedded box; 111-Upper self-locking wedge cavity; 12-Lower embedded box; 121-Lower self-locking wedge cavity; 13-Upper bracket; 131-Upper positioning plate; 132-Upper insertion part; 133-Upper support part; 134-Upper abutment part; 14-Lower bracket; 141-Lower positioning plate; 142-Lower insertion part; 143-Lower support part; 144-Lower abutment part; 15-Crossbar; 16-Diagonal brace; 17-Tie rod assembly; 171-Tie rod; 172-Tie rod positioning plate; 173-Tie rod nut; 174-Limit nut; 175-Steel pipe of the pier body; 18-Upper self-locking wedge block; 19-Lower self-locking wedge block; 20 - Upper push-pull nut; 21-Push-pull nut; 22-Push-pull rod; 23 - Pole erection; 24-Earplate; 25-scissor brace; 26-Straight rod. Detailed Implementation

[0021] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application. Unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other.

[0022] In the description of this application, the terms "upper," "lower," "left," "right," "front," "rear," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application. Unless otherwise specified, the above-mentioned orientational descriptions can be flexibly set in actual application, provided that the relative positional relationships shown in the accompanying drawings are satisfied.

[0023] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "set up," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0024] Existing prefabricated brackets can be divided into two categories according to the connection method between the bracket and the pier: The first category is the pre-embedded bracket, which is to pre-embed steel brackets in the concrete of the pier. After demolding, the brackets are fixed to the pier body. For specific structures, please refer to CN116397548A. The second category is the insert bracket, which is to set a rectangular pre-embedded box in the pier. During construction, the prefabricated brackets are inserted into the pre-embedded box. For specific structures, please refer to CN215857255U, CN222685297U, and CN207143755U.

[0025] Pre-embedded brackets are less economical because the brackets are permanently embedded in the pier and cannot be recovered later. Insertable brackets, on the other hand, offer significant economic advantages due to their ability to completely recover the brackets without damaging the pier concrete, making them the preferred solution for projects. However, to ensure the stability of the brackets within the embedded box, current designs typically control the gap between the bracket and the embedded box to within 3mm. Due to this small gap, factors such as dimensional deviations between the bracket and the embedded box, concrete pouring errors, and slight misalignment of the embedded box can all make it difficult to insert the bracket into the embedded box. This forces repeated prying, hammering, and even secondary machining on site, which not only prolongs the bracket installation time but also significantly increases the risks of working at height.

[0026] To facilitate the insertion of the bracket into the embedded box and reduce the difficulty of bracket installation, existing technology offers a method: directly and proportionally enlarging the size of the embedded box's inner cavity to increase the gap between the bracket and the embedded box, for example, increasing the gap to 10-20mm. While this method allows for easy insertion of the bracket into the embedded box, during subsequent construction, construction vibrations generated by pumping impacts and the movement of the formwork can easily cause the bracket to sway up and down within the embedded box. This swaying is transmitted through the embedded box to the pier concrete, potentially weakening the local durability of the pier in the long term.

[0027] To prevent the bracket from wobbling inside the embedded box, existing technology provides a method: inserting a flat shim between the top of the bracket and the top wall of the embedded box. However, the flat shims need to be manually tested one by one, and the number and thickness of the shims are often difficult to determine at once, resulting in low installation efficiency.

[0028] Based on this, see Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 This application provides an insertable corbel bracket for the No. 0 block of a continuous beam bridge, comprising two sets of pre-embedded boxes symmetrically arranged on both sides of the pier 10. Each pre-embedded box set includes an upper pre-embedded box 11 and a lower pre-embedded box 12 pre-embedded from top to bottom within the pier 10. An upper corbel 13 is inserted into the upper pre-embedded box 11, and a lower corbel 14 is inserted into the lower pre-embedded box 12. A cantilevered crossbar 15 is supported on the upper corbel 13, and the crossbar 15 is connected to the lower corbel 14 via a diagonal brace 16. The crossbars 15 on both sides of the pier 10... The 5 are connected by a tie rod assembly 17 that passes through the pier 10; the top wall of the upper pre-embedded box 11 is set obliquely upward from the inside to the outside and forms an upper self-locking wedge cavity 111 with the top of the upper corbel 13, and an upper self-locking wedge block 18 is inserted into the upper self-locking wedge cavity 111; the top wall of the lower pre-embedded box 12 is set obliquely upward from the inside to the outside and forms a lower self-locking wedge cavity 121 with the top of the lower corbel 14, and a lower self-locking wedge block 19 is inserted into the lower self-locking wedge cavity 121.

[0029] See Figure 1 The embedded box assembly comprises two sets, symmetrically arranged on the left and right sides of the pier 10; each set includes a row of upper embedded boxes 11 and a row of lower embedded boxes 12 arranged sequentially from top to bottom. See also... Figure 2 A row of upper embedded boxes 11 includes at least two upper embedded boxes 11 arranged at intervals along the bridge direction, each upper embedded box 11 being embedded in the pier 10 with its opening facing outwards; a row of lower embedded boxes 12 includes at least two lower embedded boxes 12 arranged at intervals along the bridge direction, each lower embedded box 12 being embedded in the pier 10 with its opening facing outwards. For example, both the upper embedded boxes 11 and the lower embedded boxes 12 can be welded from steel plates.

[0030] See Figure 5 , Figure 6 In the figure, the reference numerals outside the brackets are for the upper bracket 13, and the reference numerals inside the brackets are for the lower bracket 14. The upper bracket 13 is roughly in the shape of a "7" or an L, and includes an upper insertion part 132, an upper support part 133 connected to the upper insertion part 132, and an upper abutment part 134 connected to the bottom of the upper support part 133. The upper insertion part 132 is used to insert into the upper pre-embedded box 11, the upper support part 133 is used to support the crossbar 15, and the upper abutment part 134 is used to abut against the side wall of the pier 10. It not only limits the insertion depth of the upper insertion part 132, but also makes the upper support part 133 protrude outside the upper pre-embedded box 11. The lower bracket 14 is generally shaped like a "7" or an L, and includes a lower insertion part 142, a lower support part 143 connected to the lower insertion part 142, and a lower abutment part 144 connected to the bottom of the lower support part 143. The lower insertion part 142 is inserted into the lower embedded box 12, the lower support part 143 supports the diagonal brace 16, and the lower abutment part 144 abuts against the side wall of the pier 10, limiting the insertion depth of the lower insertion part 142 and exposing the lower support part 143 outside the lower embedded box 12. For example, both the upper bracket 13 and the lower bracket 14 can be welded from steel plates.

[0031] See Figure 1 , Figure 2 A horizontal crossbar 15 is horizontally positioned and extends transversely along the bridge. One end of the crossbar 15 is supported on the upper support portion 133 of the upper corbel 13, while the other end is suspended. A tie rod assembly 17 passes through the pier 10 and connects and tightens the crossbars 15 on both sides of the pier 10, so that the crossbar 15 is cantilevered and supported on the upper corbel 13. A diagonal brace 16 is inclined from bottom to top in a direction away from the pier 10. The lower end of the diagonal brace 16 is connected to the lower support portion 143 of the lower corbel 14, and the upper end of the diagonal brace 16 is connected to the crossbar 15, thereby supporting the crossbar 15 using the diagonal brace 16. For example, the crossbar 15 can be welded from steel plates or structural steel.

[0032] See Figure 3The top wall of the upper pre-embedded box 11 is arranged obliquely upwards from the inside out. When the upper support part 133 of the upper bracket 13 is inserted into the upper pre-embedded box 11 and the upper abutment part 134 is pressed against the side wall of the pier 10, an upper self-locking wedge cavity 111 is formed between the top plane of the upper support part 133 and the oblique surface of the top wall of the upper pre-embedded box 11. The upper self-locking wedge block 18 is a wedge block with a self-locking function, and the angle between its bottom plane and its top oblique surface is smaller than the friction angle. When the upper self-locking wedge 18 is inserted into the upper self-locking wedge cavity 111 and wedged tightly, the bottom plane of the upper self-locking wedge 18 fits against the top plane of the upper support part 133, and the top inclined surface of the upper self-locking wedge 18 fits against the top wall inclined surface of the upper pre-embedded box 11, thereby firmly fixing the upper support part 133 of the upper bracket 13 in the upper pre-embedded box 11, preventing the upper support part 133 from shaking up and down in the upper pre-embedded box 11, and also preventing the upper self-locking wedge 18 from moving outward without the action of external force.

[0033] See Figure 4 The top wall of the lower embedded box 12 is arranged obliquely upwards from the inside out. When the lower support part 143 of the lower bracket 14 is inserted into the lower embedded box 12 and the lower abutment part 144 is pressed against the side wall of the pier 10, a lower self-locking wedge cavity 121 is formed between the top plane of the lower support part 143 and the oblique surface of the top wall of the lower embedded box 12. The lower self-locking wedge block 19 is a wedge block with a self-locking function, and the included angle between its bottom plane and its top oblique surface is smaller than the friction angle. When the lower self-locking wedge 19 is inserted into the lower self-locking wedge cavity 121 and wedged tightly, the bottom plane of the lower self-locking wedge 19 fits against the top plane of the lower support part 143, and the top inclined surface of the lower self-locking wedge 19 fits against the top wall inclined surface of the lower pre-embedded box 12, thereby firmly fixing the lower support part 143 of the lower bracket 14 in the lower pre-embedded box 12, preventing the lower support part 143 from moving up and down in the lower pre-embedded box 12, and also preventing the lower self-locking wedge 19 from moving outward without the action of external force.

[0034] See Figure 1 , Figure 2 The continuous beam bridge pier 0-block insert bracket provided in this application embodiment has components that can be prefabricated into standard parts. Embedded parts are pre-embedded within the pier 10, and the remaining components are quickly assembled on-site using high-strength bolts or pins. Taking the upper bracket 13 as an example, the installation process is as follows: First, insert the upper insertion part 132 of the upper bracket 13 into the upper embedded box 11 until the upper abutting part 134 of the upper bracket 13 abuts against the side wall of the pier 10. Then, insert the upper self-locking wedge 18 into the upper self-locking wedge cavity 111 and wedge it tightly, thus completing the installation of the upper bracket 13. The installation process of the lower bracket 14 is similar to that of the upper bracket 13 and will not be described again here. The installation of the crossbar 15 and the diagonal brace 16 can refer to existing installation methods and will not be described again here.

[0035] The continuous beam bridge 0-block insert bracket provided in this application embodiment features a pre-embedded box with its top wall sloping upwards from the inside out. This creates a loose insertion opening, facilitating easy insertion of the bracket into the box, reducing installation difficulty and shortening high-altitude work time. Once the bracket is inserted, a self-locking wedge cavity is formed between the top of the bracket and the top wall of the box. By inserting a self-locking wedge into this cavity, the bracket is secured within the box, preventing it from wobbling and improving the stability and reliability of the entire bracket during construction.

[0036] In some embodiments, see Figure 7 The outer end of the upper self-locking wedge 18 is connected to the upper push-pull nut 20, and the outer end of the lower self-locking wedge 19 is connected to the lower push-pull nut 21. Both the upper push-pull nut 20 and the lower push-pull nut 21 are used for threaded connection with the end of the push-pull rod 22. The push-pull nut and the self-locking wedge can be welded together, and the end of the push-pull rod 22 is provided with an external thread section that mates with the push-pull nut.

[0037] Correspondingly, when disassembling or assembling the self-locking wedge, first screw the push-pull rod 22 into the upper push-pull nut 20 or the lower push-pull nut 21, so that the push-pull rod 22 can form an extension handle for quick disassembly and assembly of the self-locking wedge. Simply push or pull the extension handle to achieve one-time wedging or disassembly of the upper self-locking wedge 18 or the lower self-locking wedge 19, without the need for additional tools such as pry bars or hammers, making the operation more convenient.

[0038] In some embodiments, see Figure 3 , Figure 5 , Figure 6 The top of the upper bracket 13 has two opposing and upwardly extending upper positioning plates 131, which are arranged on both sides of the crossbar 15.

[0039] For details, see Figure 5 , Figure 6 Two upper positioning plates 131 are welded to both sides of the top of the upper support 133. See also Figure 3 When the crossbar 15 is supported on the upper support part 133 of the upper bracket 13, the crossbar 15 is located between the two upper positioning plates 131. The two upper positioning plates 131 limit the two sides of the crossbar 15, thereby improving the stability and reliability of the crossbar 15 supported on the upper bracket 13.

[0040] In some embodiments, see Figure 3 The tie rod assembly 17 includes a tie rod 171 that passes through the pier 10 and a tie rod positioning plate 172 fixed on the crossbar 15. The two ends of the tie rod 171 are respectively provided with external thread sections. The external thread sections of the tie rod 171 pass through the tie rod positioning plate 172 and are threadedly connected to the tie nut 173.

[0041] Specifically, the tie rod 171 can be directly embedded in the pier 10, with both ends of the tie rod 171 extending out from both sides of the pier 10. In this embodiment, a pier body steel pipe 175 is pre-embedded in the pier 10, and the tie rod 171 passes through the pier body steel pipe 175. The tie rod 171 can be made of precision-rolled threaded steel. To improve the tension of the tie assembly 17, the tie assembly 17 includes multiple tie rods 171. For example, the tie assembly 17 includes four tie rods 171, which are arranged in a rectangular shape. The tie rod positioning plate 172 is provided with through holes for the tie rods 171 to pass through; the through holes can be round holes or elongated holes. Furthermore, a limit nut 174 is threadedly connected to the external thread section of the tie rod 171, and the tie nut 173 and the limit nut 174 are respectively located on both sides of the tie rod positioning plate 172.

[0042] During installation, first pass the tie rod 171 through the corresponding pier steel pipe 175, so that the external threaded sections at both ends of the tie rod 171 extend out of both sides of the pier 10. Then screw the limiting nut 174 onto the external threaded section of the tie rod 171. Next, place the crossbar 15 against the surface of the pier, so that the end of the tie rod 171 passes through the corresponding hole of the tie rod positioning plate 172. Finally, screw the tie nuts 173 onto both ends of the tie rod 171 and tighten them symmetrically at the same time. Then tighten the limiting nut 174 at the same time to tighten and fix the crossbar 15 on both sides of the pier 10.

[0043] In some embodiments, see Figure 1 A vertical pole 23 connects the horizontal bar 15 and the diagonal brace 16. Specifically, the lower end of the vertical pole 23 is connected to the diagonal brace 16 by bolts, and the upper end of the vertical pole 23 is connected to the horizontal bar 15 by bolts. Accordingly, by setting the vertical pole 23, a triangular structure is formed between the horizontal bar 15, the diagonal brace 16, and the vertical pole 23, further improving the stability of the entire bracket.

[0044] In some embodiments, see Figure 1 , Figure 2 The bottom of the crossbar 15 is connected to multiple ear plates 24, which are spaced apart along the axial direction of the crossbar 15. The lower end of the diagonal brace 16 is hinged to the lower bracket 14, and the upper end of the diagonal brace 16 is hinged to one of the ear plates 24.

[0045] Specifically, a hinge seat is fixed to the top of the lower support portion 143 of the lower bracket 14. The lower end of the diagonal brace 16 is hinged to the hinge seat, and the upper end of the diagonal brace 16 is hinged to one of the ear plates 24. By setting multiple ear plates 24 on the crossbar 15, the diagonal brace 16 of different lengths or under different stress conditions can find corresponding connection points, thereby improving the assembly efficiency and versatility of the entire bracket.

[0046] See Figure 5 , Figure 6Two opposing lower positioning plates 141 are welded to the top of the lower support part 143 of the lower bracket 14. The two lower positioning plates 141 are respectively set on both sides of the hinge seat to limit the two sides of the hinge seat.

[0047] In some embodiments, see Figure 2 The diagonal braces 16 on the same side of the pier 10 are connected by scissor braces 25 and / or straight tie rods 26, thereby further enhancing the rigidity and stability of the entire bracket. Both the scissor braces 25 and the straight tie rods 26 can be made of structural steel and connected to the diagonal braces 16 by bolts.

[0048] The above are merely specific embodiments of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application.

Claims

1. A type of insertable bracket for a continuous beam bridge, comprising two sets of embedded boxes symmetrically arranged on both sides of a pier (10), wherein the embedded box sets include an upper embedded box (11) and a lower embedded box (12) embedded from top to bottom in the pier (10), an upper bracket (13) is inserted into the upper embedded box (11), a lower bracket (14) is inserted into the lower embedded box (12), a cantilevered crossbar (15) is supported on the upper bracket (13), the crossbar (15) is connected to the lower bracket (14) by a diagonal brace (16), and the crossbars (15) on both sides of the pier (10) are connected by a tie rod (17) that passes through the pier (10); Its features are, The top wall of the upper pre-embedded box (11) is obliquely upward in the direction from the inside to the outside, and forms an upper self-locking wedge cavity (111) between it and the top of the upper bracket (13). An upper self-locking wedge block (18) is inserted into the upper self-locking wedge cavity (111). The top wall of the lower pre-embedded box (12) is obliquely upward in the direction from the inside to the outside, and forms a lower self-locking wedge cavity (121) between it and the top of the lower bracket (14). A lower self-locking wedge block (19) is inserted into the lower self-locking wedge cavity (121).

2. The continuous beam bridge 0-block insert-type corbel bracket according to claim 1, characterized in that, The outer end of the upper self-locking wedge (18) is connected to the upper push-pull nut (20), and the outer end of the lower self-locking wedge (19) is connected to the lower push-pull nut (21). Both the upper push-pull nut (20) and the lower push-pull nut (21) are used for threaded connection with the end of the push-pull rod (22).

3. The continuous beam bridge 0-block insert-type corbel bracket according to claim 1, characterized in that, The top of the upper bracket (13) has two opposing and upwardly extending upper positioning plates (131), which are arranged on both sides of the crossbar (15).

4. The continuous beam bridge 0-block insert-type corbel bracket according to claim 1, characterized in that, The tie rod assembly (17) includes a tie rod (171) that passes through the pier (10) and a tie rod positioning plate (172) fixed on the crossbar (15). The two ends of the tie rod (171) are respectively provided with external thread sections. The external thread section of the tie rod (171) passes through the tie rod positioning plate (172) and is threadedly connected to the tie nut (173).

5. The continuous beam bridge 0-block insert-type corbel bracket according to claim 4, characterized in that, The external thread section of the tie rod (171) is also threaded with a limiting nut (174), and the tie nut (173) and the limiting nut (174) are respectively located on both sides of the tie rod positioning plate (172).

6. The continuous beam bridge 0-block insert-type corbel bracket according to claim 4, characterized in that, The pier (10) has a pre-embedded steel pipe (175) for the pier body, and the tie rod (171) passes through the steel pipe (175) for the pier body.

7. The continuous beam bridge 0-block insert-type corbel bracket according to claim 4, characterized in that, The pull assembly (17) includes a plurality of the pull rods (171).

8. The continuous beam bridge 0-block insert-type corbel bracket according to claim 1, characterized in that, A vertical pole (23) connects the horizontal bar (15) and the diagonal brace (16).

9. The continuous beam bridge 0-block insert-type corbel bracket according to claim 1, characterized in that, The bottom of the crossbar (15) is connected to a plurality of ear plates (24), which are spaced apart along the axial direction of the crossbar (15). The lower end of the diagonal brace (16) is hinged to the lower bracket (14), and the upper end of the diagonal brace (16) is hinged to one of the ear plates (24).

10. The continuous beam bridge 0-block insert-type corbel bracket according to claim 1, characterized in that, The diagonal bracing rods (16) on the same side of the pier (10) are connected by scissor bracing (25).

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