Prefabricated T-beam pedestal

Abstract

The utility model discloses a prefabricated T-beam pedestal, which relates to the technical field of bridge engineering, and comprises a pedestal foundation, a connecting piece is pre-embedded in the pedestal foundation, a base is connected above the connecting piece, a damping buffer plate is connected above the base through a plurality of first damping structures, and a plurality of second damping structures are connected above the damping buffer plate. Channel steel is connected to the end of the upper portion of the damping buffer plate, a grout stopping structure is arranged in the channel steel and connected with the inner bottom wall of the channel steel through a second damping structure, and a top plate is connected to the upper portion of the channel steel; the pedestal provided by the utility model is convenient to transform, has good buffering and damping effects, and is long in service life.

Description

Technical Field

[0001] The utility model relates to the technical field of bridge engineering, in particular to a prefabricated T-beam pedestal. Background Art

[0002] In bridge engineering, there are often prefabricated T-beams with different spans (such as 40m, 30m, and 25m). The construction process of the T-beam is to fix the T-beam formwork on the T-beam pedestal, then place the steel cage inside the T-beam formwork, and then pour concrete.

[0003] T-beam pedestals are generally made of concrete pedestals, with steel plates laid on the top as the base for prefabrication, tensioning, storage and hoisting. However, concrete pedestals are not easy to transform, have a slow molding period, occupy a large amount of space, and formwork tie rods are difficult to install. These criticisms have increased the investment in beam site construction and greatly affected the construction progress. In addition, the existing T-beam pedestals lack a buffer and shock-absorbing structure. The reciprocating impact force of the T-beam during the process of pressurizing concrete with a pump truck and the prestressed tensioning force have a strong destructive force on the pedestal and formwork, and are prone to cracks, thus affecting the overall integrity of the device. Utility Model Content

[0004] The utility model aims to solve the technical problem that the existing concrete pedestal is difficult to transform and lacks a buffering and shock-absorbing structure, and aims to provide a prefabricated T-beam pedestal that can be easily transformed and has good buffering and shock-absorbing effects and a long service life.

[0005] The utility model is realized by the following technical solutions:

[0006] A prefabricated T-beam pedestal, comprising a pedestal foundation, a connecting piece is embedded in the pedestal foundation, a base is connected above the connecting piece, a shock-absorbing buffer plate is connected above the base through a plurality of first shock-absorbing structures, a channel steel is connected to the upper end of the shock-absorbing buffer plate, a grout-stopping structure is arranged in the channel steel, the grout-stopping structure is connected to the inner bottom wall of the channel steel through a second shock-absorbing structure, and a top plate is connected above the channel steel;

[0007] The first shock absorbing structure comprises a connecting column and a buffer shock absorbing member, wherein the buffer shock absorbing member is arranged at the upper and lower ends of the connecting column, the upper end of the connecting column is connected to the bottom surface of the shock absorbing buffer plate through the buffer shock absorbing member, and the lower end of the connecting column is connected to the top surface of the base through the buffer shock absorbing member;

[0008] The buffer shock absorbing member comprises a first shock absorbing spring, the upper end of the connecting column is connected to the bottom surface of the shock absorbing buffer plate through the first shock absorbing spring, and the lower end of the connecting column is connected to the top surface of the base through the first shock absorbing spring;

[0009] The buffer and shock-absorbing component also includes a buffer column, one end of which is connected to the connecting column, and the other end is connected to the shock-absorbing buffer plate or the base, and the first shock-absorbing spring is sleeved on the outer periphery of the buffer column.

[0010] As a further technical solution of the utility model, the connecting piece is an L-shaped angle steel.

[0011] As a further technical solution of the utility model, the slurry stopping structure is a rubber slurry stopping hose.

[0012] As a further technical solution of the utility model, the second shock-absorbing structure is a second shock-absorbing spring, one end of the second shock-absorbing spring is connected to the slurry stopping structure, and the other end is connected to the inner bottom wall of the channel steel.

[0013] As a further technical solution of the utility model, a plurality of first shock absorbing structures are arranged in a rectangular array, and a reinforcing rod is connected between two adjacent first shock absorbing structures in the same row or column.

[0014] As a further technical solution of the utility model, it also includes side templates relatively arranged on the side surfaces, and the side templates relatively arranged on the side surfaces are connected by fasteners.

[0015] As a further technical solution of the utility model, the fastener includes a pull rod and a nut. The pull rod is inserted into the space between the base and the shock-absorbing buffer plate. Both ends of the pull rod pass through the side templates respectively and are connected to the nuts by threads at both ends.

[0016] Compared with the prior art, the utility model has the following advantages and beneficial effects:

[0017] 1. The connectors, base, shock-absorbing buffer plate, channel steel and top plate in the utility model are all steel structures. Compared with the traditional concrete pedestal, the modification is more convenient. It only needs to increase the number of structures and weld them, which makes the modification simpler and easier.

[0018] 2. The utility model can effectively buffer the reciprocating impact force and prestressed tension force of the T-beam during the process of pressurizing concrete by the pump truck by providing the first shock-absorbing structure, reduce damage to the pedestal device, and extend the service life of the utility model.

[0019] 3. The utility model arranges a second shock-absorbing spring, which can, on the one hand, effectively prevent the slurry-stopping structure from being in an extruded state in the channel steel for a long time, and avoid excessive extrusion, deformation and damage of the slurry-stopping structure, thereby ensuring that it can effectively form a closure for a long time and achieve the effect of preventing slurry leakage; on the other hand, the second shock-absorbing spring can buffer the external force acting on the side formwork to avoid damage to the side formwork.

[0020] 4. In the traditional concrete pedestal, when fixing the tie rod of the T-beam formwork, the tie rod is punched through the pre-buried holes in the concrete pedestal. This method is easy to damage the concrete pedestal structure. The utility model is a steel structure, and there is enough space between the base and the shock-absorbing buffer plate for the installation and connection of the tie rod. At the same time, it is convenient for the tie rod to be flexibly adjusted without the need for pre-buried holes. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The drawings described herein are used to provide a further understanding of the embodiments of the present utility model, constitute a part of this application, and do not constitute a limitation of the embodiments of the present utility model. In the drawings:

[0022] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0023] Figure 2 is a schematic diagram of the connection structure of the first shock absorbing structure;

[0024] Figure 3 Schematic diagram of the connection structure of the second shock absorbing structure.

[0025] Marks and corresponding parts names in the attached drawings:

[0026] 1-pedestal foundation, 2-connecting part, 3-base, 4-first shock-absorbing structure, 401-connecting column, 402-buffer column, 403-first shock-absorbing spring, 5-reinforcement rod, 6-channel steel, 7-slurry stop structure, 8-second shock-absorbing structure, 9-top plate, 10-shock-absorbing buffer plate, 11-side formwork, 12-pull rod, 13-nut. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical solutions and advantages of the utility model more clearly understood, the utility model is further described in detail below in conjunction with embodiments and drawings. The schematic implementation manner of the utility model and its description are only used to explain the utility model and are not intended to limit the utility model.

[0028] In the following description, a large number of specific details are set forth in order to provide a thorough understanding of the present invention. However, it is apparent to those skilled in the art that these specific details are not necessary to implement the present invention. In other embodiments, in order to avoid confusing the present invention, well-known structures, circuits, materials or methods are not specifically described.

[0029] Throughout the specification, references to "one embodiment," "an embodiment," "an example," or "an example" mean that a particular feature, structure, or characteristic described in conjunction with the embodiment or example is included in at least one embodiment of the present invention. Therefore, the phrases "one embodiment," "an embodiment," "an example," or "an example" appearing in various places throughout the specification do not necessarily all refer to the same embodiment or example. In addition, particular features, structures, or characteristics may be combined in one or more embodiments or examples in any suitable combination and / or sub-combination. In addition, it will be appreciated by those of ordinary skill in the art that the figures provided herein are for illustrative purposes and that the figures are not necessarily drawn to scale. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0030] In the description of the present invention, the terms "front", "rear", "left", "right", "up", "down", "vertical", "horizontal", "high", "low", "inside", "outside", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they should not be understood as limiting the scope of protection of the present invention.

[0031] Example 1

[0032] This embodiment 1 provides a prefabricated T-beam pedestal, such as Figure 1-Figure 3 As shown, it includes a pedestal foundation 1, in which a connecting part 2 is pre-embedded, a base 3 is connected above the connecting part 2, a shock-absorbing buffer plate 10 is connected above the base 3 through multiple first shock-absorbing structures 4, a channel steel 6 is connected to the upper end of the shock-absorbing buffer plate 10, a grout-stopping structure 7 is provided in the channel steel 6, and the grout-stopping structure 7 is connected to the inner bottom wall of the channel steel 6 through a second shock-absorbing structure 8, and a top plate 9 is connected above the channel steel 6.

[0033] In the utility model, the connecting piece 2, the base 3, the shock-absorbing buffer plate 10, the channel steel 6 and the top plate 9 are all steel structures. Compared with the traditional concrete pedestal, the modification thereof is more convenient. It only needs to increase the number of the structures and weld them. By setting the first shock-absorbing structure 4 and the second shock-absorbing structure 8, the reciprocating impact force and the prestressed tensioning force of the T-beam during the pressurized concrete process of the pump truck can be effectively alleviated, thereby reducing the destructive force on the pedestal and the formwork, avoiding the generation of cracks and damage, and extending the service life of the utility model.

[0034] In one or more embodiments of the present invention, the connecting member 2 is an L-shaped angle steel embedded in the pedestal foundation 1 , and the L-shaped angle steels are arranged in parallel along the length direction of the pedestal foundation 1 at a certain interval.

[0035] In one or more embodiments of the utility model, the first shock absorbing structure 4 includes a connecting column 401 and a buffer shock absorbing member, the buffer shock absorbing member is arranged at the upper and lower ends of the connecting column 401, the upper end of the connecting column 401 is connected to the bottom surface of the shock absorbing buffer plate 10 through the buffer shock absorbing member, and the lower end of the connecting column 401 is connected to the top surface of the base 3 through the buffer shock absorbing member. The utility model is provided with a buffer shock absorbing member, which can effectively buffer the reciprocating impact force and prestressed tension force of the T beam during the process of pressurizing concrete by a pump truck, and reduce the damage to the pedestal device. At the same time, since the buffer shock absorbing member is an elastic structure, if it is directly arranged between the base 3 and the shock absorbing buffer plate 10, the stability and rigidity are relatively low. In order to improve the stability and rigidity of the overall structure, a connecting column 401 is provided, and buffer shock absorbing members are arranged at both ends of the connecting column 401, which can not only ensure the stability and rigidity of the connection, but also play a good buffering and shock absorbing role.

[0036] Specifically, the buffer shock absorbing member includes a first shock absorbing spring 403, the upper end of the connecting column 401 is connected to the bottom surface of the shock absorbing buffer plate 10 through the first shock absorbing spring 403, and the lower end of the connecting column 401 is connected to the top surface of the base 3 through the first shock absorbing spring 403. By providing the first shock absorbing spring 403, the external force can be effectively buffered, the impact on the overall structure of the pedestal can be reduced, and its service life can be increased.

[0037] In order to ensure the buffering stability of the first shock-absorbing spring 403, the buffering shock-absorbing component also includes a buffer column 402, one end of which is connected to the connecting column 401, and the other end is connected to the shock-absorbing buffer plate 10 or the base 3. The first shock-absorbing spring 403 is sleeved on the outer periphery of the buffer column 402. When subjected to external impact force, the first shock-absorbing spring 403 shakes, and the existence of the buffer column 402 can limit the shaking of the first shock-absorbing spring 403 within a certain range, thereby ensuring that the first shock-absorbing spring 403 can better perform buffering and shock absorption.

[0038] In one or more embodiments of the utility model, the grout-stopping structure 7 is a rubber grout-stopping hose. When the T-beam is not prefabricated, the grout-stopping structure 7 will not be squeezed by the side formwork 11 and will be in an outwardly extended state. When the T-beam is prefabricated, the side formwork 11 is fixed on both sides of the pedestal. Under the pressure of the side formwork 11, the grout-stopping structure 7 is squeezed inward, so that the side formwork 11 and the grout-stopping structure 7 are tightly fitted and form a well-sealed concrete pouring space, which is convenient for T-beam concrete pouring and can effectively prevent grout leakage.

[0039] In one or more embodiments of the utility model, the second shock absorbing structure 8 is a second shock absorbing spring, one end of which is connected to the grout stopping structure 7, and the other end is connected to the inner bottom wall of the channel steel 6. By providing the second shock absorbing spring, on the one hand, the grout stopping structure 7 can be effectively prevented from being in an extruded state in the channel steel 6 for a long time, and the grout stopping structure 7 can be prevented from being excessively extruded, deformed and damaged, thereby ensuring that it can be effectively sealed for a long time and achieve the effect of preventing grout leakage. On the other hand, the second shock absorbing spring can buffer the external force on the side formwork 11 to prevent the side formwork 11 from being damaged.

[0040] In one or more embodiments of the utility model, a plurality of first shock absorbing structures 4 are arranged in a rectangular array, and a reinforcing rod 5 is connected between two adjacent first shock absorbing structures 4 in the same row or column. By providing the reinforcing rod 5, the bearing capacity and rigidity of the shock absorbing buffer plate 10 can be improved, and the gravity can be dispersed, thereby improving safety, reliability and service life;

[0041] In one or more embodiments of the utility model, side templates 11 are relatively arranged on the side, and the side templates 11 relatively arranged on the side are connected by fasteners. Specifically, the fasteners include a tie rod 12 and a nut 13. The tie rod 12 is inserted into the space between the base 3 and the shock-absorbing buffer plate 10. The two ends of the tie rod 12 pass through the side templates 11 respectively, and are connected to the nuts 13 by threads at both ends. By setting the tie rod 12 and matching the nuts 13, the connection between the templates 11 on both sides and the pedestal is realized, thereby forming a concrete pouring space with good sealing performance.

[0042] In a traditional concrete pedestal, when fixing the tie rod 12 of the T-beam formwork, the tie rod 12 is punched through a pre-buried hole in the concrete pedestal. This method is likely to cause damage to the concrete pedestal structure. The utility model is a steel structure, and there is enough space between the base 3 and the shock-absorbing buffer plate 10 for the installation and connection of the tie rod 12. At the same time, the tie rod 12 can be flexibly adjusted without the need for pre-buried holes.

[0043] The specific implementation methods described above further illustrate the purpose, technical solutions and beneficial effects of the utility model in detail. It should be understood that the above description is only the specific implementation method of the utility model and is not used to limit the protection scope of the utility model. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the utility model should be included in the protection scope of the utility model.

Claims

1. A prefabricated T-beam pedestal, comprising a pedestal foundation (1), characterized in that: A connecting member (2) is embedded in the pedestal foundation (1), a base (3) is connected to the top of the connecting member (2), a shock-absorbing buffer plate (10) is connected to the top of the base (3) via a plurality of first shock-absorbing structures (4), a channel steel (6) is connected to the top end of the shock-absorbing buffer plate (10), a grout-stopping structure (7) is provided in the channel steel (6), the grout-stopping structure (7) is connected to the bottom wall of the channel steel (6) via a second shock-absorbing structure (8), and a top plate (9) is connected to the top of the channel steel (6); The first shock absorbing structure (4) comprises a connecting column (401) and a buffer shock absorbing component, wherein the buffer shock absorbing component is arranged at the upper and lower ends of the connecting column (401), the upper end of the connecting column (401) is connected to the bottom surface of the shock absorbing buffer plate (10) through the buffer shock absorbing component, and the lower end of the connecting column (401) is connected to the top surface of the base (3) through the buffer shock absorbing component; The buffer shock absorbing component comprises a first shock absorbing spring (403), the upper end of the connecting column (401) is connected to the bottom surface of the shock absorbing buffer plate (10) through the first shock absorbing spring (403), and the lower end of the connecting column (401) is connected to the top surface of the base (3) through the first shock absorbing spring (403); The buffer and shock-absorbing component also includes a buffer column (402), one end of which is connected to the connecting column (401), and the other end of which is connected to the shock-absorbing buffer plate (10) or the base (3), and the first shock-absorbing spring (403) is sleeved on the outer periphery of the buffer column (402).

2. A prefabricated T-beam pedestal according to claim 1, characterized in that: The connecting piece (2) is an L-shaped angle steel.

3. The prefabricated T-beam pedestal according to claim 1, characterized in that: The slurry stopping structure (7) is a rubber slurry stopping hose.

4. The prefabricated T-beam pedestal according to claim 1, characterized in that: The second shock absorbing structure (8) is a second shock absorbing spring, one end of which is connected to the slurry stopping structure (7), and the other end of which is connected to the inner bottom wall of the channel steel (6).

5. The prefabricated T-beam pedestal according to claim 1, characterized in that: The plurality of first shock absorbing structures (4) are arranged in a rectangular array, and a reinforcing rod (5) is connected between two adjacent first shock absorbing structures (4) in the same row or column.

6. The prefabricated T-beam pedestal according to claim 1, characterized in that: It also includes side templates (11) arranged relatively on the side surfaces, and the side templates (11) arranged relatively on the side surfaces are connected via fasteners.

7. The prefabricated T-beam pedestal according to claim 6, characterized in that: The fastener comprises a pull rod (12) and a nut (13); the pull rod (12) is inserted into the space between the base (3) and the shock-absorbing buffer plate (10); both ends of the pull rod (12) pass through the side template (11) respectively and are connected to the nut (13) via threads at both ends.

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