Cast-in-place box girder support wall connecting piece
By combining channel steel back ribs and threaded steel tie rods, the problem of damage when connecting the support steel pipe column to the bridge pier was solved, achieving a stable connection without damaging the bridge pier, and improving construction efficiency and structural durability.
Patent Information
- Application Number
- CN202423041468.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-10
- Publication Date
- 2025-11-07
- Estimated Expiration
- 2034-12-10
AI Technical Summary
In the existing technology, the connection between the support steel pipe column and the pier body will cause damage to the pier body, affecting the appearance quality and safety of the pier body. In addition, the embedded iron parts are prone to corrosion, which will affect the safety of the structure.
A combination structure of channel steel back ribs and threaded steel tie rods is adopted. The channel steel back ribs are set parallel to both sides of the pier, and the threaded steel tie rods are connected to the steel pipe columns to form a wall-connected structure, avoiding direct contact with the pier. Plastic pads are used to reduce damage to the pier.
This achieves a stable connection between the support frame and the pier without damaging the pier surface, avoiding corrosion problems, improving construction efficiency and the durability of the concrete structure, and reducing operation and maintenance costs.
Smart Images
Figure CN223522992U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to railway bridge construction technical field especially relates to a cast-in-place box girder support wall connecting piece. BACKGROUND
[0002] When the cast-in-place box girder support of railway is constructed, the support steel pipe column needs to be connected with the pier body to improve the longitudinal stability of the support. The traditional method is to embed iron parts on the side of the pier body and weld the iron parts with the support steel pipe column. After the support is removed, the section steel needs to be cut. The repeated cutting not only reduces the service life of the steel pipe, but also burns the concrete surface of the pier body with the flame generated by cutting, which damages the appearance quality and durability of the pier body. More importantly, if the steel plate left on the surface of the pier body is not properly treated, the rust water generated by rusting will pollute the pier body for a long time, and the embedded iron parts are easy to form a rusting channel with the pier body structure reinforcement, which affects the safety of the use of the concrete structure.
[0003] In summary, the connection between the support steel pipe column and the pier body to improve the longitudinal stability of the support will cause certain damage to the pier body and affect the subsequent use of the pier body. Therefore, a structure is needed that will not damage the pier body and can connect the steel pipe column and the pier body to improve the longitudinal stability of the support. SUMMARY
[0004] The utility model discloses a cast-in-place box girder support wall connecting piece, which will not damage the pier and can connect the steel pipe column and the pier.
[0005] To solve the above technical problems, the following technical solutions are adopted:
[0006] The utility model provides a cast-in-place box girder support wall connecting piece, including channel steel back ridge, steel pipe stand and screw thread steel pair of pull rods, two channel steel back ridges are equipped with, two channel steel back ridges are in parallel and are arranged at the both sides of bridge pier, be equipped with screw thread steel pair of pull rods between two channel steel back ridges, the both ends of screw thread steel pair of pull rods are connected with channel steel back ridge,
[0007] The steel pipe stand is arranged on the side of the channel steel back ridge away from the bridge pier, the channel steel back ridge is connected with the steel pipe stand through the stand connecting ear plate, the steel pipe stand and the bridge pier are parallel and both stand on the pile cap.
[0008] Optionally, the channel steel back ridge includes a channel steel and a channel steel connecting ear plate, two channel steels are arranged in an up-down back-to-back manner, and the channel steel connecting ear plate is welded to the side surface of the two back-to-back channel steels to connect the two channel steels together.
[0009] Optionally, the column connecting lug plate is welded on the steel pipe column, a U-shaped hole is arranged on the column connecting lug plate, a round hole is arranged on the channel steel connecting lug plate, and a bolt assembly is arranged on the U-shaped hole and the round hole, so that the column connecting lug plate and the channel steel connecting lug plate are mounted.
[0010] Optionally, a plastic cushion block is arranged between the channel steel back brace and the pier.
[0011] Optionally, the plastic cushion block is attached to one side of the channel steel back brace close to the pier.
[0012] Optionally, the screw steel tie rod is provided with at least four, two of which are close to the pier side.
[0013] Optionally, the steel pipe column is provided with at least eight.
[0014] Optionally, the steel pipe column is arranged on the side of the channel steel back brace away from the pier, and the arrangement direction is the same as the direction of the channel steel back brace.
[0015] Optionally, the channel steel back brace is provided with a hole position for penetrating the screw steel tie rod, the screw steel tie rod is provided with a thread, and the screw steel tie rod penetrates the hole position at both ends and is installed through a nut.
[0016] Optionally, a gasket is further arranged between the nut and the channel steel back brace.
[0017] Compared with the prior art, the beneficial effects achieved by the utility model are:
[0018] 1、The utility model discloses two channel steel back braces are arranged on the two side surfaces of the pier, and the screw steel tie rod is arranged between the two parallel channel steel back braces, so that the channel steel back brace is tightly embraced on the pier, and the other side surface of the channel steel back brace is connected with the steel pipe column through the column connecting lug plate and the steel pipe column, so that the pier is connected with the steel pipe column.
[0019] 2、The utility model discloses simple structure, and the one side of the channel steel back brace in contact with the pier is further provided with a plastic cushion block, so that the damage of the channel steel back brace to the surface of the pier is avoided, a plurality of screw steel tie rods are arranged between the two channel steel back braces, so that the stability of the channel steel back brace is increased, and the column connecting lug plate and the channel steel connecting lug plate are connected through the bolt assembly and can be repeatedly used, so that the consumption of materials is reduced. DRAWINGS
[0020] Figure 1 It is the overhead structure schematic diagram of the cast-in-place box girder support wall connecting piece in the embodiment of the utility model;
[0021] Figure 2 It is the side structure schematic diagram of the cast-in-place box girder support wall connecting piece in the embodiment of the utility model;
[0022] Figure 3 is the utility model Figure 1 the enlarged structural schematic view of the area A in the utility model embodiment;
[0023] Figure 4 is the partial enlarged structural schematic view of the cast-in-place box girder support wall connecting piece in the utility model embodiment.
[0024] Mark explanation:
[0025] 1, channel steel back lath;101, channel steel;102, channel steel connecting lug plate;2, threaded steel tie rod;3, steel pipe column;301, column connecting lug plate;4, bridge pier;5, bolt assembly;6, plastic cushion block;7, tie rod nut;8, backing plate;9, pile cap. Specific implementation
[0026] The technical solutions in the utility model embodiments will be clearly and completely described below with reference to the drawings in the utility model embodiments. Obviously, the described embodiments are only a part of the embodiments of the utility model, rather than all the embodiments. The description of the at least one exemplary embodiment is actually only illustrative, rather than any limitation on the utility model and its application or use. Embodiment 1
[0027] As Figure 1 , Figure 2 shown, the embodiment provides a cast-in-place box girder support wall connecting piece, which comprises channel steel back lath 1, steel pipe column 3 and threaded steel tie rod 2, two channel steel back lath 1 are provided, two channel steel back lath 1 are arranged in parallel on the two sides of bridge pier 4, threaded steel tie rod 2 is arranged between two channel steel back lath 1, and the two ends of threaded steel tie rod 2 are connected with channel steel back lath 1.
[0028] The steel pipe column 3 is arranged on the side of the channel steel back lath 1 away from the bridge pier 4, the channel steel back lath 1 is connected with the steel pipe column 3 through column connecting lug plate 301, the steel pipe column 3 and the bridge pier 4 are parallel, and both are erected on pile cap 9.
[0029] As Figure 1 shown, two channel steel back lath 1 are arranged perpendicularly to bridge pier 4, a plurality of threaded steel tie rods 2 are arranged between two parallel channel steel back lath 1, threaded steel tie rod 2 clamps two channel steel back lath 1 on bridge pier 4, the other side of channel steel back lath 1 is connected with steel pipe column 3 through column connecting lug plate 301, and a wall is formed between steel pipe column 3 and channel steel back lath 1, thereby increasing the longitudinal stability of the support on bridge pier 4. Embodiment 2
[0030] The embodiment is based on embodiment 1 to provide a cast-in-place box girder support wall connecting piece, and the difference lies in that:
[0031] As Figure 2 shown, the channel steel back lath 1 includes channel steel 101 and channel steel connecting lug plate 102, the channel steel 101 is provided with two, two said channel steel 101 upside down back to back, through the channel steel connecting lug plate 102 is welded on the side of two back to back said channel steel, two said channel steel is connected together to form channel steel back lath 1. Wherein, the channel steel 101 used is No. 20 channel steel, and the threaded steel pair of pull rod 2 adopts fine rolled threaded steel pair of pull rod 2.
[0032] The column connecting lug plate 301 is welded on the steel pipe column 3, the column connecting lug plate 301 is provided with a U-shaped hole, the channel steel connecting lug plate 102 is provided with a round hole, and the bolt assembly 5 is arranged on the U-shaped hole and the round hole to realize the installation of the column connecting lug plate 301 and the channel steel connecting lug plate 102.
[0033] As Figure 1 shown, the channel steel back lath 1 and the pier 4 are provided with plastic cushion block 6, the plastic cushion block 6 is pre-pasted on one side of the channel steel back lath 1 close to the pier 4, and the length and the short are the same as the width of the side surface of the pier 4. Avoiding the channel steel back lath 1 directly contacting with the surface of the pier 4, causing damage to the surface of the pier 4, also can avoid impacting the surface of the pier 4 in the process of hoisting the channel steel back lath 1, avoiding damaging the surface of the pier 4.
[0034] As Figure 1 shown, the steel pipe column 3 is provided with ten, every five is arranged on one side of the channel steel back lath 1, and the arrangement direction is the same as that of the channel steel back lath 1. In the five steel pipe columns 3 in a column, the center of the pier 4 is symmetrically arranged, wherein, Figure 1 from top to bottom, the distance between the second and fourth steel pipe columns 3 is the width of the pier, and the steel pipe columns 3 are connected through the steel Z-shaped inclined braces between every two steel pipe columns 3 in a column, and the steel pipe columns 3 are connected with the channel steel back lath 1 through the column connecting lug plate 301.
[0035] The threaded steel pair of pull rod 2 is provided with four, two of which are close to the two side surfaces of the pier 4, and the other two threaded steel pairs of pull rod 2 are symmetrically arranged at the center point of the pier 4, wherein the two threaded steel pairs of pull rod 2 close to the pier 4 hoop the channel steel back lath 1 on the pier 4, and the other two threaded steel pairs of pull rod 2 improve the stability of the end of the channel steel back lath 1 away from the pier 4.
[0036] As Figure 4 shown, the threaded steel pair of pull rod 2 is provided with a thread, and the channel steel back lath 1 is provided with a hole position for penetrating the threaded steel pair of pull rod 2. After the threaded steel pair of pull rod 2 penetrates the hole position on the channel steel back lath 1, the installation of the threaded steel pair of pull rod 2 and the channel steel back lath 1 is realized through the setting of the end plate 8 and the pull rod nut 7. The end plate 8 can increase the relaxation of the pull rod nut 7.
[0037] In the installation and use, first, weld the column connecting lug 301 on each steel pipe column 3, erect eight steel pipe columns 3 on the bearing platform 9 provided with the bridge pier 4, and have a certain interval between the bridge pier 4. Place two channel steels back to back on the platform, weld four channel steel connecting lugs 102 on one side to form the channel steel back beam 1, paste the plastic cushion block 6 on the other side of the channel steel back beam 1, process two identical channel steel back beams 1, first hoist one channel steel back beam 1 on the side of the bridge pier 4 at a certain height, align the round hole on the channel steel connecting lug 102 on the channel steel back beam 1 with the U-shaped hole on the column connecting lug 301 on the steel pipe column 3, install the bolt assembly 5, and install the steel pipe connecting lug and the channel steel connecting lug 102 together. Then install the other channel steel back beam 1 on the other side of the bridge pier 4 in the same way. Then pass four threaded steels through the reserved hole positions on the channel steel back beam 1 to form the pair of pull rods 2, first symmetrically pass two threaded steels close to the bridge pier 4 and install through the pair of pull rod nuts 7 and the gasket plate 8, and then pass the other two threaded steels to complete the installation.
[0038] The cast-in-place box girder support wall connecting piece provided by the embodiment has simple structure, can be disassembled and recycled, is easy to install, does not need to pre-bury support wall connecting iron pieces during the construction of the bridge pier 4, avoids the positioning process of pre-buried pieces and related welding and cutting work during the construction of the pier body, can improve the construction efficiency, avoids the pollution of the pier body caused by the long-term corrosion of the pre-buried iron pieces, avoids the formation of a corrosion channel from the pre-buried iron pieces to the reinforcement of the pier body structure, is beneficial to improving the overall appearance quality of the pier body concrete, and reduces the later operation and maintenance cost.
[0039] In the description of the utility model, need understanding is, the term "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "internal", "external" and so on indicate the orientation or positional relation based on the orientation or positional relation shown in the drawing, just for the convenience of describing the utility model and simplifying the description, and not indicate or imply that the indicated device or element must have a particular orientation, construct and operate in a particular orientation, therefore can not be understood as the limitation to the utility model. In addition, the term "first", "second" and so on are only for the purpose of description, and can not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second" and so on can explicitly or implicitly include one or more features. In the description of the utility model, unless otherwise specified, the meaning of "a plurality of" is two or more than two. In the description of the utility model, it needs to be explained that, unless otherwise specified and limited, the term "mounting", "connection", "connection" should be understood broadly, for example, can be fixedly connected, can also be detachably connected, or integrally connected, can be mechanically connected, can also be electrically connected, can be directly connected, can also be indirectly connected through an intermediate medium, can be the communication inside two elements. For ordinary skilled in the art, the specific meaning of the above-mentioned terms in the utility model can be understood through specific circumstances.
[0040] The above is only the preferred embodiment of the utility model, and it should be pointed out that, for ordinary skilled in the art, under the premise of not departing from the technical principles of the utility model, a number of improvements and deformations can be made, and these improvements and deformations should also be regarded as the protection scope of the utility model.
Claims
1. A cast-in-place box girder support wall connecting piece, characterized in that, Two channel steel back laths are arranged in parallel on both sides of the pier, and a threaded steel counter-pull rod is arranged between the two channel steel back laths, and the threaded steel counter-pull rod is connected with the channel steel back laths at both ends; The steel pipe stand is arranged on the side of the channel steel back lath away from the pier, the channel steel back lath is connected with the steel pipe stand through a stand connecting lug plate, the steel pipe stand and the pier are parallel and both are erected on the pile cap.
2. The cast-in-place box girder support wall connecting piece according to claim 1, characterized in that, The channel steel back lath comprises channel steels and channel steel connecting lug plates, two channel steels are arranged in an upside-down manner, and the channel steel connecting lug plates are welded on the side surfaces of the two upside-down channel steels to connect the two channel steels together.
3. The cast-in-place box girder support wall connecting piece according to claim 2, characterized in that, The stand connecting lug plate is welded on the steel pipe stand, a U-shaped hole is arranged on the stand connecting lug plate, a round hole is arranged on the channel steel connecting lug plate, a bolt assembly is arranged on the U-shaped hole and the round hole, and the installation of the stand connecting lug plate and the channel steel connecting lug plate is realized.
4. The cast-in-place box girder support wall connecting piece according to claim 1, characterized in that, A plastic cushion block is arranged between the channel steel back lath and the pier.
5. The cast-in-place box girder support wall connecting piece according to claim 4, characterized in that, The plastic cushion block is attached to the side surface of the channel steel back lath close to the pier.
6. The cast-in-place box girder support wall connecting piece according to claim 1, characterized in that, The threaded steel counter-pull rod is provided with at least four threaded steels, two of which are close to the side surface of the pier.
7. The cast-in-place box girder support wall connecting piece according to claim 1, characterized in that, The steel pipe stand is provided with at least eight steel pipes.
8. The cast-in-place box girder support wall connecting piece according to claim 1, characterized in that, The steel pipe stands are arranged on the side of the channel steel back lath away from the pier, and the arrangement direction is the same as the direction of the channel steel back lath.
9. The cast-in-place box girder support wall connecting piece according to claim 1, characterized in that, A hole position for penetrating the threaded steel counter-pull rod is arranged on the channel steel back lath, a thread is arranged on the threaded steel counter-pull rod, both ends of the threaded steel counter-pull rod penetrate the hole position, and the threaded steel counter-pull rod is installed through a nut.
10. The cast-in-place box girder support wall connecting piece according to claim 9, characterized in that, A gasket is further arranged between the nut and the channel steel back lath.